---
_id: '9565'
author:
- first_name: Ernst-Günter
  full_name: Lierke, Ernst-Günter
  last_name: Lierke
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: 'Lierke E-G, Hemsel T. Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia
    and Thermal Ablation. In: <i>Proceedings of 19th International Congress on Acoustics,
    Madrid</i>. ; 2007.'
  apa: Lierke, E.-G., &#38; Hemsel, T. (2007). Perspectives of Tumour Therapy by Local
    Ultrasonic Hyperthermia and Thermal Ablation. In <i>Proceedings of 19th international
    congress on Acoustics, Madrid</i>.
  bibtex: '@inproceedings{Lierke_Hemsel_2007, title={Perspectives of Tumour Therapy
    by Local Ultrasonic Hyperthermia and Thermal Ablation}, booktitle={Proceedings
    of 19th international congress on Acoustics, Madrid}, author={Lierke, Ernst-Günter
    and Hemsel, Tobias}, year={2007} }'
  chicago: Lierke, Ernst-Günter, and Tobias Hemsel. “Perspectives of Tumour Therapy
    by Local Ultrasonic Hyperthermia and Thermal Ablation.” In <i>Proceedings of 19th
    International Congress on Acoustics, Madrid</i>, 2007.
  ieee: E.-G. Lierke and T. Hemsel, “Perspectives of Tumour Therapy by Local Ultrasonic
    Hyperthermia and Thermal Ablation,” in <i>Proceedings of 19th international congress
    on Acoustics, Madrid</i>, 2007.
  mla: Lierke, Ernst-Günter, and Tobias Hemsel. “Perspectives of Tumour Therapy by
    Local Ultrasonic Hyperthermia and Thermal Ablation.” <i>Proceedings of 19th International
    Congress on Acoustics, Madrid</i>, 2007.
  short: 'E.-G. Lierke, T. Hemsel, in: Proceedings of 19th International Congress
    on Acoustics, Madrid, 2007.'
date_created: 2019-04-29T10:21:57Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
language:
- iso: eng
publication: Proceedings of 19th international congress on Acoustics, Madrid
quality_controlled: '1'
status: public
title: Perspectives of Tumour Therapy by Local Ultrasonic Hyperthermia and Thermal
  Ablation
type: conference
user_id: '55222'
year: '2007'
...
---
_id: '9566'
author:
- first_name: Takashi
  full_name: Shigematsu , Takashi
  last_name: 'Shigematsu '
- first_name: Takeshi
  full_name: Morita, Takeshi
  last_name: Morita
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: Shigematsu  T, Morita T, Hemsel T. Fundamental Study on A Thickness-Shear Transformer
    using X-Cut Lithium Niobate. <i>Proceedings of Symposium on Ultrasonic Electronics</i>.
    2007;28:439-440.
  apa: Shigematsu , T., Morita, T., &#38; Hemsel, T. (2007). Fundamental Study on
    A Thickness-Shear Transformer using X-Cut Lithium Niobate. <i>Proceedings of Symposium
    on Ultrasonic Electronics</i>, <i>28</i>, 439–440.
  bibtex: '@article{Shigematsu _Morita_Hemsel_2007, title={Fundamental Study on A
    Thickness-Shear Transformer using X-Cut Lithium Niobate}, volume={28}, journal={Proceedings
    of Symposium on Ultrasonic Electronics}, author={Shigematsu , Takashi and Morita,
    Takeshi and Hemsel, Tobias}, year={2007}, pages={439–440} }'
  chicago: 'Shigematsu , Takashi, Takeshi Morita, and Tobias Hemsel. “Fundamental
    Study on A Thickness-Shear Transformer Using X-Cut Lithium Niobate.” <i>Proceedings
    of Symposium on Ultrasonic Electronics</i> 28 (2007): 439–40.'
  ieee: T. Shigematsu , T. Morita, and T. Hemsel, “Fundamental Study on A Thickness-Shear
    Transformer using X-Cut Lithium Niobate,” <i>Proceedings of Symposium on Ultrasonic
    Electronics</i>, vol. 28, pp. 439–440, 2007.
  mla: Shigematsu , Takashi, et al. “Fundamental Study on A Thickness-Shear Transformer
    Using X-Cut Lithium Niobate.” <i>Proceedings of Symposium on Ultrasonic Electronics</i>,
    vol. 28, 2007, pp. 439–40.
  short: T. Shigematsu , T. Morita, T. Hemsel, Proceedings of Symposium on Ultrasonic
    Electronics 28 (2007) 439–440.
date_created: 2019-04-29T10:23:26Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
intvolume: '        28'
language:
- iso: eng
page: 439 - 440
publication: Proceedings of Symposium on Ultrasonic Electronics
quality_controlled: '1'
status: public
title: Fundamental Study on A Thickness-Shear Transformer using X-Cut Lithium Niobate
type: journal_article
user_id: '55222'
volume: 28
year: '2007'
...
---
_id: '25241'
citation:
  ama: Wallaschek J, Hemsel T, Mracek M, eds. <i>Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators</i>. Vol 180.
    Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn; 2006.
  apa: Wallaschek, J., Hemsel, T., &#38; Mracek, M. (Eds.). (2006). <i>Proceedings
    of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>
    (Vol. 180). Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn.
  bibtex: '@book{Wallaschek_Hemsel_Mracek_2006, series={Verlagsschriftenreihe des
    Heinz Nixdorf Instituts, Paderborn}, title={Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators}, volume={180}, publisher={Verlagsschriftenreihe
    des Heinz Nixdorf Instituts, Paderborn}, year={2006}, collection={Verlagsschriftenreihe
    des Heinz Nixdorf Instituts, Paderborn} }'
  chicago: Wallaschek, Jörg, Tobias Hemsel, and Maik Mracek, eds. <i>Proceedings of
    2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>.
    Vol. 180. Verlagsschriftenreihe Des Heinz Nixdorf Instituts, Paderborn. Verlagsschriftenreihe
    des Heinz Nixdorf Instituts, Paderborn, 2006.
  ieee: J. Wallaschek, T. Hemsel, and M. Mracek, Eds., <i>Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators</i>, vol. 180.
    Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn, 2006.
  mla: Wallaschek, Jörg, et al., editors. <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i>. Verlagsschriftenreihe
    des Heinz Nixdorf Instituts, Paderborn, 2006.
  short: J. Wallaschek, T. Hemsel, M. Mracek, eds., Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators, Verlagsschriftenreihe
    des Heinz Nixdorf Instituts, Paderborn, 2006.
date_created: 2021-10-01T08:01:17Z
date_updated: 2022-01-06T06:56:56Z
department:
- _id: '26'
editor:
- first_name: Jörg
  full_name: Wallaschek, Jörg
  last_name: Wallaschek
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
intvolume: '       180'
language:
- iso: eng
publication_status: published
publisher: Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn
series_title: Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn
status: public
title: Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications
  in Actuators
type: conference_editor
user_id: '60046'
volume: 180
year: '2006'
...
---
_id: '9532'
author:
- first_name: C
  full_name: Becker, C
  last_name: Becker
- first_name: S
  full_name: Wedman, S
  last_name: Wedman
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: 'Becker C, Wedman S, Hemsel T. Design and Construction of a 3D-Scanning-Laservibrometer.
    In: <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn, Germany;
    2006:481.'
  apa: Becker, C., Wedman, S., &#38; Hemsel, T. (2006). Design and Construction of
    a 3D-Scanning-Laservibrometer. In <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i> (p. 481). Paderborn,
    Germany.
  bibtex: '@inproceedings{Becker_Wedman_Hemsel_2006, place={Paderborn, Germany}, series={HNI
    Verlagsschriftenreihe}, title={Design and Construction of a 3D-Scanning-Laservibrometer},
    number={Band 180}, booktitle={Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators}, author={Becker, C and Wedman, S and
    Hemsel, Tobias}, year={2006}, pages={481}, collection={HNI Verlagsschriftenreihe}
    }'
  chicago: Becker, C, S Wedman, and Tobias Hemsel. “Design and Construction of a 3D-Scanning-Laservibrometer.”
    In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>, 481. HNI Verlagsschriftenreihe. Paderborn, Germany,
    2006.
  ieee: C. Becker, S. Wedman, and T. Hemsel, “Design and Construction of a 3D-Scanning-Laservibrometer,”
    in <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>, 2006, no. Band 180, p. 481.
  mla: Becker, C., et al. “Design and Construction of a 3D-Scanning-Laservibrometer.”
    <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications
    in Actuators</i>, no. Band 180, 2006, p. 481.
  short: 'C. Becker, S. Wedman, T. Hemsel, in: Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators, Paderborn, Germany,
    2006, p. 481.'
date_created: 2019-04-29T08:47:33Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: '481'
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Design and Construction of a 3D-Scanning-Laservibrometer
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9533'
abstract:
- lang: eng
  text: 'The design of piezoelectric transducers is usually based on single-objective
    optimization only. In most practical applications of piezoelectric transducers,
    however, there exist multiple design objectives that often are contradictory to
    each other by their very nature. It is impossible to find a solution at which
    each objective function gets its optimal value simultaneously. Our design approach
    is to first find a set of Pareto-optimal solutions, which can be considered to
    be best compromises among multiple design objectives. Among these Pareto-optimal
    solutions, the designer can then select the one solution which he considers to
    be the best one. In this paper we investigate the optimal design of a Langevin
    transducer. The design problem is formulated mathematically as a constrained multiobjective
    optimization problem. The maximum vibration amplitude and the minimum electrical
    input power are considered as optimization objectives. Design variables involve
    continuous variables (dimensions of the transducer) and discrete variables (the
    number of piezoelectric rings and material types). In order to formulate the optimization
    problem, the behavior of piezoelectric transducers is modeled using the transfer
    matrix method based on analytical models. Multiobjective evolutionary algorithms
    are applied in the optimization process and a set of Pareto-optimal designs is
    calculated. The optimized results are analyzed and the preferred design is determined. '
author:
- first_name: Bo
  full_name: Fu, Bo
  last_name: Fu
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Jörg
  full_name: Wallaschek, Jörg
  last_name: Wallaschek
citation:
  ama: Fu B, Hemsel T, Wallaschek J. Piezoelectric transducer design via multiobjective
    optimization. <i>Ultrasonics</i>. 2006;44, Supplement:e747-e752. doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.087">10.1016/j.ultras.2006.05.087</a>
  apa: Fu, B., Hemsel, T., &#38; Wallaschek, J. (2006). Piezoelectric transducer design
    via multiobjective optimization. <i>Ultrasonics</i>, <i>44</i>, <i>Supplement</i>,
    e747–e752. <a href="https://doi.org/10.1016/j.ultras.2006.05.087">https://doi.org/10.1016/j.ultras.2006.05.087</a>
  bibtex: '@article{Fu_Hemsel_Wallaschek_2006, title={Piezoelectric transducer design
    via multiobjective optimization}, volume={44, Supplement}, DOI={<a href="https://doi.org/10.1016/j.ultras.2006.05.087">10.1016/j.ultras.2006.05.087</a>},
    journal={Ultrasonics}, author={Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg},
    year={2006}, pages={e747–e752} }'
  chicago: 'Fu, Bo, Tobias Hemsel, and Jörg Wallaschek. “Piezoelectric Transducer
    Design via Multiobjective Optimization.” <i>Ultrasonics</i> 44, Supplement (2006):
    e747–52. <a href="https://doi.org/10.1016/j.ultras.2006.05.087">https://doi.org/10.1016/j.ultras.2006.05.087</a>.'
  ieee: B. Fu, T. Hemsel, and J. Wallaschek, “Piezoelectric transducer design via
    multiobjective optimization,” <i>Ultrasonics</i>, vol. 44, Supplement, pp. e747–e752,
    2006.
  mla: Fu, Bo, et al. “Piezoelectric Transducer Design via Multiobjective Optimization.”
    <i>Ultrasonics</i>, vol. 44, Supplement, 2006, pp. e747–52, doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.087">10.1016/j.ultras.2006.05.087</a>.
  short: B. Fu, T. Hemsel, J. Wallaschek, Ultrasonics 44, Supplement (2006) e747–e752.
date_created: 2019-04-29T08:50:23Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1016/j.ultras.2006.05.087
keyword:
- Piezoelectric transducer
language:
- iso: eng
page: e747 - e752
publication: Ultrasonics
publication_identifier:
  issn:
  - 0041-624X
quality_controlled: '1'
status: public
title: Piezoelectric transducer design via multiobjective optimization
type: journal_article
user_id: '55222'
volume: 44, Supplement
year: '2006'
...
---
_id: '9534'
author:
- first_name: Bo
  full_name: Fu, Bo
  last_name: Fu
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Jörg
  full_name: Wallaschek, Jörg
  last_name: Wallaschek
citation:
  ama: 'Fu B, Hemsel T, Wallaschek J. Multiobjective optimization of piezoelectric
    transducers using evolutionary algorithms. In: <i>Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators</i>. HNI Verlagsschriftenreihe.
    Paderborn, Germany; 2006:223-228.'
  apa: Fu, B., Hemsel, T., &#38; Wallaschek, J. (2006). Multiobjective optimization
    of piezoelectric transducers using evolutionary algorithms. In <i>Proceedings
    of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>
    (pp. 223–228). Paderborn, Germany.
  bibtex: '@inproceedings{Fu_Hemsel_Wallaschek_2006, place={Paderborn, Germany}, series={HNI
    Verlagsschriftenreihe}, title={Multiobjective optimization of piezoelectric transducers
    using evolutionary algorithms}, number={Band 180}, booktitle={Proceedings of 2nd
    International Workshop on Piezoelectric Materials and Applications in Actuators},
    author={Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg}, year={2006}, pages={223–228},
    collection={HNI Verlagsschriftenreihe} }'
  chicago: Fu, Bo, Tobias Hemsel, and Jörg Wallaschek. “Multiobjective Optimization
    of Piezoelectric Transducers Using Evolutionary Algorithms.” In <i>Proceedings
    of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>,
    223–28. HNI Verlagsschriftenreihe. Paderborn, Germany, 2006.
  ieee: B. Fu, T. Hemsel, and J. Wallaschek, “Multiobjective optimization of piezoelectric
    transducers using evolutionary algorithms,” in <i>Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators</i>, 2006, no.
    Band 180, pp. 223–228.
  mla: Fu, Bo, et al. “Multiobjective Optimization of Piezoelectric Transducers Using
    Evolutionary Algorithms.” <i>Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators</i>, no. Band 180, 2006, pp. 223–28.
  short: 'B. Fu, T. Hemsel, J. Wallaschek, in: Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators, Paderborn, Germany,
    2006, pp. 223–228.'
date_created: 2019-04-29T08:52:41Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 223-228
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Multiobjective optimization of piezoelectric transducers using evolutionary
  algorithms
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9537'
author:
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: C
  full_name: Henning, C
  last_name: Henning
- first_name: Christopher
  full_name: Kauczor, Christopher
  last_name: Kauczor
- first_name: Walter
  full_name: Littmann, Walter
  last_name: Littmann
citation:
  ama: 'Hemsel T, Henning C, Kauczor C, Littmann W. Powder coating fabrication by
    ultrasonic standing wave atomizer. In: <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i>. HNI Verlagsschriftenreihe.
    Paderborn, Germany; 2006:183-186.'
  apa: Hemsel, T., Henning, C., Kauczor, C., &#38; Littmann, W. (2006). Powder coating
    fabrication by ultrasonic standing wave atomizer. In <i>Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators</i> (pp. 183–186).
    Paderborn, Germany.
  bibtex: '@inproceedings{Hemsel_Henning_Kauczor_Littmann_2006, place={Paderborn,
    Germany}, series={HNI Verlagsschriftenreihe}, title={Powder coating fabrication
    by ultrasonic standing wave atomizer}, number={Band 180}, booktitle={Proceedings
    of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators},
    author={Hemsel, Tobias and Henning, C and Kauczor, Christopher and Littmann, Walter},
    year={2006}, pages={183–186}, collection={HNI Verlagsschriftenreihe} }'
  chicago: Hemsel, Tobias, C Henning, Christopher Kauczor, and Walter Littmann. “Powder
    Coating Fabrication by Ultrasonic Standing Wave Atomizer.” In <i>Proceedings of
    2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>,
    183–86. HNI Verlagsschriftenreihe. Paderborn, Germany, 2006.
  ieee: T. Hemsel, C. Henning, C. Kauczor, and W. Littmann, “Powder coating fabrication
    by ultrasonic standing wave atomizer,” in <i>Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators</i>, 2006, no.
    Band 180, pp. 183–186.
  mla: Hemsel, Tobias, et al. “Powder Coating Fabrication by Ultrasonic Standing Wave
    Atomizer.” <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i>, no. Band 180, 2006, pp. 183–86.
  short: 'T. Hemsel, C. Henning, C. Kauczor, W. Littmann, in: Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators, Paderborn,
    Germany, 2006, pp. 183–186.'
date_created: 2019-04-29T08:59:10Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 183-186
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Powder coating fabrication by ultrasonic standing wave atomizer
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9538'
author:
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
citation:
  ama: 'Hemsel T, Mracek M. Control of Bundled Miniature Ultrasonic Linear Motors.
    In: <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn, Germany;
    2006:313-322.'
  apa: Hemsel, T., &#38; Mracek, M. (2006). Control of Bundled Miniature Ultrasonic
    Linear Motors. In <i>Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators</i> (pp. 313–322). Paderborn, Germany.
  bibtex: '@inproceedings{Hemsel_Mracek_2006, place={Paderborn, Germany}, series={HNI
    Verlagsschriftenreihe}, title={Control of Bundled Miniature Ultrasonic Linear
    Motors}, number={Band 180}, booktitle={Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators}, author={Hemsel, Tobias
    and Mracek, Maik}, year={2006}, pages={313–322}, collection={HNI Verlagsschriftenreihe}
    }'
  chicago: Hemsel, Tobias, and Maik Mracek. “Control of Bundled Miniature Ultrasonic
    Linear Motors.” In <i>Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators</i>, 313–22. HNI Verlagsschriftenreihe.
    Paderborn, Germany, 2006.
  ieee: T. Hemsel and M. Mracek, “Control of Bundled Miniature Ultrasonic Linear Motors,”
    in <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>, 2006, no. Band 180, pp. 313–322.
  mla: Hemsel, Tobias, and Maik Mracek. “Control of Bundled Miniature Ultrasonic Linear
    Motors.” <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i>, no. Band 180, 2006, pp. 313–22.
  short: 'T. Hemsel, M. Mracek, in: Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators, Paderborn, Germany, 2006, pp. 313–322.'
date_created: 2019-04-29T09:02:00Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 313-322
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Control of Bundled Miniature Ultrasonic Linear Motors
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9539'
abstract:
- lang: eng
  text: 'Classically, rotary motors with gears and spindle mechanisms are used to
    achieve translatory motion. In means of miniaturization and weight reduction piezoelectric
    linear motors are of interest. Several ultrasonic linear motors found in literature
    base on the use of two different vibration modes. Most often flexural and longitudinal
    modes are combined to achieve an elliptic micro-motion of surface points. This
    micro-motion is converted to direct linear (or translatory) motion of a driven
    slider. To gain high amplitudes of the micro-motion and thus having a powerful
    motor, the ultrasonic vibrator should be driven near the eigenfrequency of its
    modes. Additionally, low mechanical and electrical losses lead to increased efficiency
    and large amplitude magnification in resonance. This demands a geometrical design
    that fits the eigenfrequencies of the two different modes. A frequency-deviation
    of only a few percent leads to non-acceptable disturbance of the elliptical motion.
    Thus, the mechanical design of the vibrators has to be done very carefully. Within
    this contribution we discuss different motor designs based on the coupling of
    two the same longitudinal vibrations within one structure to generate an elliptic
    motion of surface points. Different concepts based on piezoelectric plates and
    Langevin transducers are compared. Benefits and drawbacks against the combination
    of longitudinal and bending modes will be discussed. Numerical results of the
    stator vibration as well as motor characteristics are validated by measurements
    on different prototypes. '
author:
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
- first_name: Jens
  full_name: Twiefel, Jens
  last_name: Twiefel
- first_name: Piotr
  full_name: Vasiljev, Piotr
  last_name: Vasiljev
citation:
  ama: Hemsel T, Mracek M, Twiefel J, Vasiljev P. Piezoelectric linear motor concepts
    based on coupling of longitudinal vibrations. <i>Ultrasonics</i>. 2006;44, Supplement(0):e591-e596.
    doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.056">10.1016/j.ultras.2006.05.056</a>
  apa: Hemsel, T., Mracek, M., Twiefel, J., &#38; Vasiljev, P. (2006). Piezoelectric
    linear motor concepts based on coupling of longitudinal vibrations. <i>Ultrasonics</i>,
    <i>44</i>, <i>Supplement</i>(0), e591–e596. <a href="https://doi.org/10.1016/j.ultras.2006.05.056">https://doi.org/10.1016/j.ultras.2006.05.056</a>
  bibtex: '@article{Hemsel_Mracek_Twiefel_Vasiljev_2006, title={Piezoelectric linear
    motor concepts based on coupling of longitudinal vibrations}, volume={44, Supplement},
    DOI={<a href="https://doi.org/10.1016/j.ultras.2006.05.056">10.1016/j.ultras.2006.05.056</a>},
    number={0}, journal={Ultrasonics}, author={Hemsel, Tobias and Mracek, Maik and
    Twiefel, Jens and Vasiljev, Piotr}, year={2006}, pages={e591–e596} }'
  chicago: 'Hemsel, Tobias, Maik Mracek, Jens Twiefel, and Piotr Vasiljev. “Piezoelectric
    Linear Motor Concepts Based on Coupling of Longitudinal Vibrations.” <i>Ultrasonics</i>
    44, Supplement, no. 0 (2006): e591–96. <a href="https://doi.org/10.1016/j.ultras.2006.05.056">https://doi.org/10.1016/j.ultras.2006.05.056</a>.'
  ieee: T. Hemsel, M. Mracek, J. Twiefel, and P. Vasiljev, “Piezoelectric linear motor
    concepts based on coupling of longitudinal vibrations,” <i>Ultrasonics</i>, vol.
    44, Supplement, no. 0, pp. e591–e596, 2006.
  mla: Hemsel, Tobias, et al. “Piezoelectric Linear Motor Concepts Based on Coupling
    of Longitudinal Vibrations.” <i>Ultrasonics</i>, vol. 44, Supplement, no. 0, 2006,
    pp. e591–96, doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.056">10.1016/j.ultras.2006.05.056</a>.
  short: T. Hemsel, M. Mracek, J. Twiefel, P. Vasiljev, Ultrasonics 44, Supplement
    (2006) e591–e596.
date_created: 2019-04-29T09:03:50Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1016/j.ultras.2006.05.056
issue: '0'
keyword:
- Piezoelectric linear motor
language:
- iso: eng
page: e591 - e596
publication: Ultrasonics
publication_identifier:
  issn:
  - 0041-624X
quality_controlled: '1'
status: public
title: Piezoelectric linear motor concepts based on coupling of longitudinal vibrations
type: journal_article
user_id: '55222'
volume: 44, Supplement
year: '2006'
...
---
_id: '9540'
author:
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: S
  full_name: Priya, S
  last_name: Priya
citation:
  ama: 'Hemsel T, Priya S. Model Based Analysis of Piezoelectric Transformers. In:
    <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications
    in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn, Germany; 2006:223-228.'
  apa: Hemsel, T., &#38; Priya, S. (2006). Model Based Analysis of Piezoelectric Transformers.
    In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i> (pp. 223–228). Paderborn, Germany.
  bibtex: '@inproceedings{Hemsel_Priya_2006, place={Paderborn, Germany}, series={HNI
    Verlagsschriftenreihe}, title={Model Based Analysis of Piezoelectric Transformers},
    number={Band 180}, booktitle={Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators}, author={Hemsel, Tobias and Priya, S},
    year={2006}, pages={223–228}, collection={HNI Verlagsschriftenreihe} }'
  chicago: Hemsel, Tobias, and S Priya. “Model Based Analysis of Piezoelectric Transformers.”
    In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>, 223–28. HNI Verlagsschriftenreihe. Paderborn, Germany,
    2006.
  ieee: T. Hemsel and S. Priya, “Model Based Analysis of Piezoelectric Transformers,”
    in <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>, 2006, no. Band 180, pp. 223–228.
  mla: Hemsel, Tobias, and S. Priya. “Model Based Analysis of Piezoelectric Transformers.”
    <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications
    in Actuators</i>, no. Band 180, 2006, pp. 223–28.
  short: 'T. Hemsel, S. Priya, in: Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators, Paderborn, Germany, 2006, pp. 223–228.'
date_created: 2019-04-29T09:04:55Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 223-228
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
quality_controlled: '1'
series_title: HNI Verlagsschriftenreihe
status: public
title: Model Based Analysis of Piezoelectric Transformers
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9541'
abstract:
- lang: eng
  text: Piezoelectric transformers are increasingly getting popular in the electrical
    devices owing to several advantages such as small size, high efficiency, no electromagnetic
    noise and non-flammable. In addition to the conventional applications such as
    ballast for back light inverter in notebook computers, camera flash, and fuel
    ignition several new applications have emerged such as AC/DC converter, battery
    charger and automobile lighting. These new applications demand high power density
    and wide range of voltage gain. Currently, the transformer power density is limited
    to $40 W/cm{^3}$ obtained at low voltage gain. The purpose of this study was to
    investigate a transformer design that has the potential of providing higher power
    density and wider range of voltage gain. The new transformer design utilizes radial
    mode both at the input and output port and has the unidirectional polarization
    in the ceramics. This design was found to provide 30 W power with an efficiency
    of 98\% and 30 $\,^{\circ}$C temperature rise from the room temperature. An electro-mechanical
    equivalent circuit model was developed to describe the characteristics of the
    piezoelectric transformer. The model was found to successfully predict the characteristics
    of the transformer. Excellent matching was found between the computed and experimental
    results. The results of this study will allow to deterministically design unipoled
    piezoelectric transformers with specified performance. It is expected that in
    near future the unipoled transformer will gain significant importance in various
    electrical components.
author:
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: S
  full_name: Priya, S
  last_name: Priya
citation:
  ama: Hemsel T, Priya S. Model based analysis of piezoelectric transformers. <i>Ultrasonics</i>.
    2006;44, Supplement(0):e741-e745. doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.086">10.1016/j.ultras.2006.05.086</a>
  apa: Hemsel, T., &#38; Priya, S. (2006). Model based analysis of piezoelectric transformers.
    <i>Ultrasonics</i>, <i>44</i>, <i>Supplement</i>(0), e741–e745. <a href="https://doi.org/10.1016/j.ultras.2006.05.086">https://doi.org/10.1016/j.ultras.2006.05.086</a>
  bibtex: '@article{Hemsel_Priya_2006, title={Model based analysis of piezoelectric
    transformers}, volume={44, Supplement}, DOI={<a href="https://doi.org/10.1016/j.ultras.2006.05.086">10.1016/j.ultras.2006.05.086</a>},
    number={0}, journal={Ultrasonics}, author={Hemsel, Tobias and Priya, S}, year={2006},
    pages={e741–e745} }'
  chicago: 'Hemsel, Tobias, and S Priya. “Model Based Analysis of Piezoelectric Transformers.”
    <i>Ultrasonics</i> 44, Supplement, no. 0 (2006): e741–45. <a href="https://doi.org/10.1016/j.ultras.2006.05.086">https://doi.org/10.1016/j.ultras.2006.05.086</a>.'
  ieee: T. Hemsel and S. Priya, “Model based analysis of piezoelectric transformers,”
    <i>Ultrasonics</i>, vol. 44, Supplement, no. 0, pp. e741–e745, 2006.
  mla: Hemsel, Tobias, and S. Priya. “Model Based Analysis of Piezoelectric Transformers.”
    <i>Ultrasonics</i>, vol. 44, Supplement, no. 0, 2006, pp. e741–45, doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.086">10.1016/j.ultras.2006.05.086</a>.
  short: T. Hemsel, S. Priya, Ultrasonics 44, Supplement (2006) e741–e745.
date_created: 2019-04-29T09:22:21Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1016/j.ultras.2006.05.086
issue: '0'
keyword:
- Piezoelectric transformers
language:
- iso: eng
page: e741 - e745
publication: Ultrasonics
publication_identifier:
  issn:
  - 0041-624X
quality_controlled: '1'
status: public
title: Model based analysis of piezoelectric transformers
type: journal_article
user_id: '55222'
volume: 44, Supplement
year: '2006'
...
---
_id: '9543'
abstract:
- lang: eng
  text: An improved concept for ultrasonic hyperthermia of tumors is presented. This
    concept is based on past experience of a German government supported project [1],
    which ended in 1984. It offers a low cost alternative to common RF- and microwave
    methods for hyperthermia of tumors with volumes between 1 and 40 ml at treatment
    times between 30 and 60 min. Our new version of the system considerably improves
    the temperature suppression in the healthy tissue around the target area and enables
    the adjustment of the beam width to the actual tumor size and the field geometry
    to the depth and shape of the tumor. The applicator can be used for moderate hyperthermia
    with tissue overheating up to 10 K or for ablation therapy with short high temperature
    pulses. Its central area is free for the integration of a commercial ultrasonic
    diagnostic sector scanner or a Doppler flow sensor in order to support the adjustment
    of the transducer and to monitor the whole area during the therapy.
author:
- first_name: E.G.
  full_name: Lierke, E.G.
  last_name: Lierke
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: Lierke EG, Hemsel T. Focusing cross-fire applicator for ultrasonic hyperthermia
    of tumors. <i>Ultrasonics</i>. 2006;44, Supplement:e341-e344. doi:<a href="https://doi.org/10.1016/j.ultras.2006.07.004">10.1016/j.ultras.2006.07.004</a>
  apa: Lierke, E. G., &#38; Hemsel, T. (2006). Focusing cross-fire applicator for
    ultrasonic hyperthermia of tumors. <i>Ultrasonics</i>, <i>44</i>, <i>Supplement</i>,
    e341–e344. <a href="https://doi.org/10.1016/j.ultras.2006.07.004">https://doi.org/10.1016/j.ultras.2006.07.004</a>
  bibtex: '@article{Lierke_Hemsel_2006, title={Focusing cross-fire applicator for
    ultrasonic hyperthermia of tumors}, volume={44, Supplement}, DOI={<a href="https://doi.org/10.1016/j.ultras.2006.07.004">10.1016/j.ultras.2006.07.004</a>},
    journal={Ultrasonics}, author={Lierke, E.G. and Hemsel, Tobias}, year={2006},
    pages={e341–e344} }'
  chicago: 'Lierke, E.G., and Tobias Hemsel. “Focusing Cross-Fire Applicator for Ultrasonic
    Hyperthermia of Tumors.” <i>Ultrasonics</i> 44, Supplement (2006): e341–44. <a
    href="https://doi.org/10.1016/j.ultras.2006.07.004">https://doi.org/10.1016/j.ultras.2006.07.004</a>.'
  ieee: E. G. Lierke and T. Hemsel, “Focusing cross-fire applicator for ultrasonic
    hyperthermia of tumors,” <i>Ultrasonics</i>, vol. 44, Supplement, pp. e341–e344,
    2006.
  mla: Lierke, E. G., and Tobias Hemsel. “Focusing Cross-Fire Applicator for Ultrasonic
    Hyperthermia of Tumors.” <i>Ultrasonics</i>, vol. 44, Supplement, 2006, pp. e341–44,
    doi:<a href="https://doi.org/10.1016/j.ultras.2006.07.004">10.1016/j.ultras.2006.07.004</a>.
  short: E.G. Lierke, T. Hemsel, Ultrasonics 44, Supplement (2006) e341–e344.
date_created: 2019-04-29T09:27:27Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1016/j.ultras.2006.07.004
keyword:
- Moderate hyperthermia
language:
- iso: eng
page: e341 - e344
publication: Ultrasonics
publication_identifier:
  issn:
  - 0041-624X
quality_controlled: '1'
status: public
title: Focusing cross-fire applicator for ultrasonic hyperthermia of tumors
type: journal_article
user_id: '55222'
volume: 44, Supplement
year: '2006'
...
---
_id: '9544'
author:
- first_name: Ernst-Günter
  full_name: Lierke, Ernst-Günter
  last_name: Lierke
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: 'Lierke E-G, Hemsel T. Focussing Cross-Fire Applicator for Ultrasonic Hyperthermia
    of Tumors. In: <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn, Germany;
    2006:215-222.'
  apa: Lierke, E.-G., &#38; Hemsel, T. (2006). Focussing Cross-Fire Applicator for
    Ultrasonic Hyperthermia of Tumors. In <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i> (pp. 215–222). Paderborn,
    Germany.
  bibtex: '@inproceedings{Lierke_Hemsel_2006, place={Paderborn, Germany}, series={HNI
    Verlagsschriftenreihe}, title={Focussing Cross-Fire Applicator for Ultrasonic
    Hyperthermia of Tumors}, number={Band 180}, booktitle={Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators}, author={Lierke,
    Ernst-Günter and Hemsel, Tobias}, year={2006}, pages={215–222}, collection={HNI
    Verlagsschriftenreihe} }'
  chicago: Lierke, Ernst-Günter, and Tobias Hemsel. “Focussing Cross-Fire Applicator
    for Ultrasonic Hyperthermia of Tumors.” In <i>Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators</i>, 215–22.
    HNI Verlagsschriftenreihe. Paderborn, Germany, 2006.
  ieee: E.-G. Lierke and T. Hemsel, “Focussing Cross-Fire Applicator for Ultrasonic
    Hyperthermia of Tumors,” in <i>Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators</i>, 2006, no. Band 180, pp. 215–222.
  mla: Lierke, Ernst-Günter, and Tobias Hemsel. “Focussing Cross-Fire Applicator for
    Ultrasonic Hyperthermia of Tumors.” <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i>, no. Band 180, 2006,
    pp. 215–22.
  short: 'E.-G. Lierke, T. Hemsel, in: Proceedings of 2nd International Workshop on
    Piezoelectric Materials and Applications in Actuators, Paderborn, Germany, 2006,
    pp. 215–222.'
date_created: 2019-04-29T09:29:01Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 215-222
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Focussing Cross-Fire Applicator for Ultrasonic Hyperthermia of Tumors
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9545'
author:
- first_name: B
  full_name: Mracek, B
  last_name: Mracek
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
citation:
  ama: 'Mracek B, Hemsel T, Mracek M. Powder Transport by Ultrasonic Waves. In: <i>Proceedings
    of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>.
    HNI Verlagsschriftenreihe. Paderborn, Germany; 2006:177-182.'
  apa: Mracek, B., Hemsel, T., &#38; Mracek, M. (2006). Powder Transport by Ultrasonic
    Waves. In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i> (pp. 177–182). Paderborn, Germany.
  bibtex: '@inproceedings{Mracek_Hemsel_Mracek_2006, place={Paderborn, Germany}, series={HNI
    Verlagsschriftenreihe}, title={Powder Transport by Ultrasonic Waves}, number={Band
    180}, booktitle={Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators}, author={Mracek, B and Hemsel, Tobias and Mracek,
    Maik}, year={2006}, pages={177–182}, collection={HNI Verlagsschriftenreihe} }'
  chicago: Mracek, B, Tobias Hemsel, and Maik Mracek. “Powder Transport by Ultrasonic
    Waves.” In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i>, 177–82. HNI Verlagsschriftenreihe. Paderborn,
    Germany, 2006.
  ieee: B. Mracek, T. Hemsel, and M. Mracek, “Powder Transport by Ultrasonic Waves,”
    in <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>, 2006, no. Band 180, pp. 177–182.
  mla: Mracek, B., et al. “Powder Transport by Ultrasonic Waves.” <i>Proceedings of
    2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>,
    no. Band 180, 2006, pp. 177–82.
  short: 'B. Mracek, T. Hemsel, M. Mracek, in: Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators, Paderborn, Germany,
    2006, pp. 177–182.'
date_created: 2019-04-29T09:31:58Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 177-182
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Powder Transport by Ultrasonic Waves
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9546'
abstract:
- lang: eng
  text: Rotary ultrasonic motors have found broad industrial application in camera
    lens drives and other systems. Linear ultrasonic motors in contrast have only
    found limited applications. The main reason for the limited range of application
    of these very attractive devices seems to be their small force and power range.
    Attempts to build linear ultrasonic motors for high forces and high power applications
    have not been truly successful yet. To achieve larger force and higher power,
    multiple miniaturized motors can be combined. This approach, however, is not as
    simple as it appears at first glance. The electromechanical behaviour of the individual
    motors differs slightly due to manufacturing and assembly tolerances. The individual
    motor characteristics are strongly dependent on the driving parameters (frequency,
    voltage, temperature, pre-stress, etc.) and the driven load and the collective
    behaviour of the swarm of motors is not just the linear superposition of the individual
    drive's forces. Thus, the bundle of motors has to be synchronized and controlled
    appropriately in order to obtain an optimized drive that is not oversized and
    costly. We have investigated driving and control strategies of a set of linear
    ultrasonic motors. Our contribution will be divided into three main parts. In
    part I ultrasonic linear motors will be introduced. In part II driving strategies
    for a single motor as well as for a bundle of motors will be presented. These
    concepts will be verified by simulation results and experimental data. In part
    III a simplified model for the motor's electromechanical behaviour will be given.
author:
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: Mracek M, Hemsel T. Synergetic driving concepts for bundled miniature ultrasonic
    linear motors. <i>Ultrasonics</i>. 2006;44, Supplement:e597-e602. doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.201">10.1016/j.ultras.2006.05.201</a>
  apa: Mracek, M., &#38; Hemsel, T. (2006). Synergetic driving concepts for bundled
    miniature ultrasonic linear motors. <i>Ultrasonics</i>, <i>44</i>, <i>Supplement</i>,
    e597–e602. <a href="https://doi.org/10.1016/j.ultras.2006.05.201">https://doi.org/10.1016/j.ultras.2006.05.201</a>
  bibtex: '@article{Mracek_Hemsel_2006, title={Synergetic driving concepts for bundled
    miniature ultrasonic linear motors}, volume={44, Supplement}, DOI={<a href="https://doi.org/10.1016/j.ultras.2006.05.201">10.1016/j.ultras.2006.05.201</a>},
    journal={Ultrasonics}, author={Mracek, Maik and Hemsel, Tobias}, year={2006},
    pages={e597–e602} }'
  chicago: 'Mracek, Maik, and Tobias Hemsel. “Synergetic Driving Concepts for Bundled
    Miniature Ultrasonic Linear Motors.” <i>Ultrasonics</i> 44, Supplement (2006):
    e597–602. <a href="https://doi.org/10.1016/j.ultras.2006.05.201">https://doi.org/10.1016/j.ultras.2006.05.201</a>.'
  ieee: M. Mracek and T. Hemsel, “Synergetic driving concepts for bundled miniature
    ultrasonic linear motors,” <i>Ultrasonics</i>, vol. 44, Supplement, pp. e597–e602,
    2006.
  mla: Mracek, Maik, and Tobias Hemsel. “Synergetic Driving Concepts for Bundled Miniature
    Ultrasonic Linear Motors.” <i>Ultrasonics</i>, vol. 44, Supplement, 2006, pp.
    e597–602, doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.201">10.1016/j.ultras.2006.05.201</a>.
  short: M. Mracek, T. Hemsel, Ultrasonics 44, Supplement (2006) e597–e602.
date_created: 2019-04-29T09:34:16Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1016/j.ultras.2006.05.201
keyword:
- Ultrasonic linear motor
language:
- iso: eng
page: e597 - e602
publication: Ultrasonics
publication_identifier:
  issn:
  - 0041-624X
quality_controlled: '1'
status: public
title: Synergetic driving concepts for bundled miniature ultrasonic linear motors
type: journal_article
user_id: '55222'
volume: 44, Supplement
year: '2006'
...
---
_id: '9547'
author:
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
- first_name: Piotr
  full_name: Vasiljev, Piotr
  last_name: Vasiljev
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Jörg
  full_name: Wallaschek, Jörg
  last_name: Wallaschek
citation:
  ama: Mracek M, Vasiljev P, Hemsel T, Wallaschek J. Self configuration of a novel
    miniature ultrasonic linear motor. <i>Solid State Phenomena</i>. 2006;113:167-172.
  apa: Mracek, M., Vasiljev, P., Hemsel, T., &#38; Wallaschek, J. (2006). Self configuration
    of a novel miniature ultrasonic linear motor. <i>Solid State Phenomena</i>, <i>113</i>,
    167–172.
  bibtex: '@article{Mracek_Vasiljev_Hemsel_Wallaschek_2006, title={Self configuration
    of a novel miniature ultrasonic linear motor}, volume={113}, journal={Solid State
    Phenomena}, publisher={Trans Tech Publ}, author={Mracek, Maik and Vasiljev, Piotr
    and Hemsel, Tobias and Wallaschek, Jörg}, year={2006}, pages={167–172} }'
  chicago: 'Mracek, Maik, Piotr Vasiljev, Tobias Hemsel, and Jörg Wallaschek. “Self
    Configuration of a Novel Miniature Ultrasonic Linear Motor.” <i>Solid State Phenomena</i>
    113 (2006): 167–72.'
  ieee: M. Mracek, P. Vasiljev, T. Hemsel, and J. Wallaschek, “Self configuration
    of a novel miniature ultrasonic linear motor,” <i>Solid State Phenomena</i>, vol.
    113, pp. 167–172, 2006.
  mla: Mracek, Maik, et al. “Self Configuration of a Novel Miniature Ultrasonic Linear
    Motor.” <i>Solid State Phenomena</i>, vol. 113, Trans Tech Publ, 2006, pp. 167–72.
  short: M. Mracek, P. Vasiljev, T. Hemsel, J. Wallaschek, Solid State Phenomena 113
    (2006) 167–172.
date_created: 2019-04-29T09:35:31Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
intvolume: '       113'
language:
- iso: eng
page: 167-172
publication: Solid State Phenomena
publisher: Trans Tech Publ
quality_controlled: '1'
status: public
title: Self configuration of a novel miniature ultrasonic linear motor
type: journal_article
user_id: '55222'
volume: 113
year: '2006'
...
---
_id: '9548'
abstract:
- lang: eng
  text: This paper presents a general model based on the electromechanical circuit
    theory. The model is set up as a mechanical equivalent model for base excited
    systems and describes the behaviour of a piezoelectric element around one resonance
    frequency which is sufficient for most practical applications. The model is extended
    to obtain the influence of geometrical and material properties. The derivated
    properties are used to describe the parameters of the general model which is easy
    to handle. Using this model either the calculation of the output power on a specific
    electric load or the determination of the design of the used piezoelectric element
    for a needed electric output power is possible. The paper focuses on the design
    of the ratio of length and width of a piezoelectric bimorph. The validity of the
    model is shown by the comparison of computed and experimental results.
author:
- first_name: Björn
  full_name: Richter, Björn
  last_name: Richter
- first_name: Jens
  full_name: Twiefel, Jens
  last_name: Twiefel
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Jörg
  full_name: Wallaschek, Jörg
  last_name: Wallaschek
citation:
  ama: 'Richter B, Twiefel J, Hemsel T, Wallaschek J. Model based design of piezoelectric
    generators utilizing geometrical and material properties. In: <i>ASME 2006 International
    Mechanical Engineering Congress and Exposition</i>. Chicago, Illinois, USA; 2006.
    doi:<a href="https://doi.org/doi:10.1115/IMECE2006-14862">doi:10.1115/IMECE2006-14862</a>'
  apa: Richter, B., Twiefel, J., Hemsel, T., &#38; Wallaschek, J. (2006). Model based
    design of piezoelectric generators utilizing geometrical and material properties.
    In <i>ASME 2006 International Mechanical Engineering Congress and Exposition</i>.
    Chicago, Illinois, USA. <a href="https://doi.org/doi:10.1115/IMECE2006-14862">https://doi.org/doi:10.1115/IMECE2006-14862</a>
  bibtex: '@inproceedings{Richter_Twiefel_Hemsel_Wallaschek_2006, place={Chicago,
    Illinois, USA}, title={Model based design of piezoelectric generators utilizing
    geometrical and material properties}, DOI={<a href="https://doi.org/doi:10.1115/IMECE2006-14862">doi:10.1115/IMECE2006-14862</a>},
    booktitle={ASME 2006 International Mechanical Engineering Congress and Exposition},
    author={Richter, Björn and Twiefel, Jens and Hemsel, Tobias and Wallaschek, Jörg},
    year={2006} }'
  chicago: Richter, Björn, Jens Twiefel, Tobias Hemsel, and Jörg Wallaschek. “Model
    Based Design of Piezoelectric Generators Utilizing Geometrical and Material Properties.”
    In <i>ASME 2006 International Mechanical Engineering Congress and Exposition</i>.
    Chicago, Illinois, USA, 2006. <a href="https://doi.org/doi:10.1115/IMECE2006-14862">https://doi.org/doi:10.1115/IMECE2006-14862</a>.
  ieee: B. Richter, J. Twiefel, T. Hemsel, and J. Wallaschek, “Model based design
    of piezoelectric generators utilizing geometrical and material properties,” in
    <i>ASME 2006 International Mechanical Engineering Congress and Exposition</i>,
    2006.
  mla: Richter, Björn, et al. “Model Based Design of Piezoelectric Generators Utilizing
    Geometrical and Material Properties.” <i>ASME 2006 International Mechanical Engineering
    Congress and Exposition</i>, 2006, doi:<a href="https://doi.org/doi:10.1115/IMECE2006-14862">doi:10.1115/IMECE2006-14862</a>.
  short: 'B. Richter, J. Twiefel, T. Hemsel, J. Wallaschek, in: ASME 2006 International
    Mechanical Engineering Congress and Exposition, Chicago, Illinois, USA, 2006.'
date_created: 2019-04-29T09:37:45Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: doi:10.1115/IMECE2006-14862
keyword:
- Materials properties
- Design
- Generators
language:
- iso: eng
place: Chicago, Illinois, USA
publication: ASME 2006 International Mechanical Engineering Congress and Exposition
quality_controlled: '1'
status: public
title: Model based design of piezoelectric generators utilizing geometrical and material
  properties
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9549'
author:
- first_name: Florian
  full_name: Schiedeck, Florian
  last_name: Schiedeck
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: 'Schiedeck F, Hemsel T. Comparison of Piezoelectric and Shape Memory Alloy
    Based Actuators. In: <i>Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn,
    Germany; 2006:239-242.'
  apa: Schiedeck, F., &#38; Hemsel, T. (2006). Comparison of Piezoelectric and Shape
    Memory Alloy Based Actuators. In <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i> (pp. 239–242). Paderborn,
    Germany.
  bibtex: '@inproceedings{Schiedeck_Hemsel_2006, place={Paderborn, Germany}, series={HNI
    Verlagsschriftenreihe}, title={Comparison of Piezoelectric and Shape Memory Alloy
    Based Actuators}, number={Band 180}, booktitle={Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators}, author={Schiedeck,
    Florian and Hemsel, Tobias}, year={2006}, pages={239–242}, collection={HNI Verlagsschriftenreihe}
    }'
  chicago: Schiedeck, Florian, and Tobias Hemsel. “Comparison of Piezoelectric and
    Shape Memory Alloy Based Actuators.” In <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i>, 239–42. HNI Verlagsschriftenreihe.
    Paderborn, Germany, 2006.
  ieee: F. Schiedeck and T. Hemsel, “Comparison of Piezoelectric and Shape Memory
    Alloy Based Actuators,” in <i>Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators</i>, 2006, no. Band 180, pp. 239–242.
  mla: Schiedeck, Florian, and Tobias Hemsel. “Comparison of Piezoelectric and Shape
    Memory Alloy Based Actuators.” <i>Proceedings of 2nd International Workshop on
    Piezoelectric Materials and Applications in Actuators</i>, no. Band 180, 2006,
    pp. 239–42.
  short: 'F. Schiedeck, T. Hemsel, in: Proceedings of 2nd International Workshop on
    Piezoelectric Materials and Applications in Actuators, Paderborn, Germany, 2006,
    pp. 239–242.'
date_created: 2019-04-29T09:39:25Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 239-242
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Comparison of Piezoelectric and Shape Memory Alloy Based Actuators
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9550'
author:
- first_name: Florian
  full_name: Schiedeck, Florian
  last_name: Schiedeck
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Jörg
  full_name: Wallaschek, Jörg
  last_name: Wallaschek
citation:
  ama: Schiedeck F, Hemsel T, Wallaschek J. The use of shape memory alloy wires in
    actuators. <i>Solid State Phenomena</i>. 2006;113:195-198.
  apa: Schiedeck, F., Hemsel, T., &#38; Wallaschek, J. (2006). The use of shape memory
    alloy wires in actuators. <i>Solid State Phenomena</i>, <i>113</i>, 195–198.
  bibtex: '@article{Schiedeck_Hemsel_Wallaschek_2006, title={The use of shape memory
    alloy wires in actuators}, volume={113}, journal={Solid State Phenomena}, publisher={Trans
    Tech Publ}, author={Schiedeck, Florian and Hemsel, Tobias and Wallaschek, Jörg},
    year={2006}, pages={195–198} }'
  chicago: 'Schiedeck, Florian, Tobias Hemsel, and Jörg Wallaschek. “The Use of Shape
    Memory Alloy Wires in Actuators.” <i>Solid State Phenomena</i> 113 (2006): 195–98.'
  ieee: F. Schiedeck, T. Hemsel, and J. Wallaschek, “The use of shape memory alloy
    wires in actuators,” <i>Solid State Phenomena</i>, vol. 113, pp. 195–198, 2006.
  mla: Schiedeck, Florian, et al. “The Use of Shape Memory Alloy Wires in Actuators.”
    <i>Solid State Phenomena</i>, vol. 113, Trans Tech Publ, 2006, pp. 195–98.
  short: F. Schiedeck, T. Hemsel, J. Wallaschek, Solid State Phenomena 113 (2006)
    195–198.
date_created: 2019-04-29T09:40:50Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
intvolume: '       113'
language:
- iso: eng
page: 195-198
publication: Solid State Phenomena
publisher: Trans Tech Publ
quality_controlled: '1'
status: public
title: The use of shape memory alloy wires in actuators
type: journal_article
user_id: '55222'
volume: 113
year: '2006'
...
---
_id: '9552'
author:
- first_name: Jens
  full_name: Twiefel, Jens
  last_name: Twiefel
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Christopher
  full_name: Kauczor, Christopher
  last_name: Kauczor
citation:
  ama: 'Twiefel J, Hemsel T, Kauczor C. Energy harvesting with piezoelectric Elements.
    In: <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn, Germany;
    2006:207-212.'
  apa: Twiefel, J., Hemsel, T., &#38; Kauczor, C. (2006). Energy harvesting with piezoelectric
    Elements. In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i> (pp. 207–212). Paderborn, Germany.
  bibtex: '@inproceedings{Twiefel_Hemsel_Kauczor_2006, place={Paderborn, Germany},
    series={HNI Verlagsschriftenreihe}, title={Energy harvesting with piezoelectric
    Elements}, number={Band 180}, booktitle={Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators}, author={Twiefel, Jens
    and Hemsel, Tobias and Kauczor, Christopher}, year={2006}, pages={207–212}, collection={HNI
    Verlagsschriftenreihe} }'
  chicago: Twiefel, Jens, Tobias Hemsel, and Christopher Kauczor. “Energy Harvesting
    with Piezoelectric Elements.” In <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i>, 207–12. HNI Verlagsschriftenreihe.
    Paderborn, Germany, 2006.
  ieee: J. Twiefel, T. Hemsel, and C. Kauczor, “Energy harvesting with piezoelectric
    Elements,” in <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i>, 2006, no. Band 180, pp. 207–212.
  mla: Twiefel, Jens, et al. “Energy Harvesting with Piezoelectric Elements.” <i>Proceedings
    of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>,
    no. Band 180, 2006, pp. 207–12.
  short: 'J. Twiefel, T. Hemsel, C. Kauczor, in: Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators, Paderborn,
    Germany, 2006, pp. 207–212.'
date_created: 2019-04-29T09:43:30Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 207-212
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Energy harvesting with piezoelectric Elements
type: conference
user_id: '55222'
year: '2006'
...