---
_id: '9568'
abstract:
- lang: eng
  text: A simple pre-stress estimate method of Langevin transducers is studied. The
    measurement setup consists of a capacitor, an impedance converter and a voltmeter.
    Based on the piezoelectric equation and the basic circuit theory, the mathematical
    expression between the pre-stress and the voltage across the capacitor is derived.
    The pre-stress level can then be calculated out of the measurement of the capacitor
    voltage. In order to evaluate the precision of this method, a force washer is
    used to measure the pre-stress of the Langevin transducer. The result shows the
    pre-stress level obtained from this method is 30-40\% higher than the pre-stress
    level measured by the force washer. This method is simple and can be used to estimate
    the pre-stress of various Langevin transducers. The precision of this method can
    be raised if d33 is identified under different pre-stress levels.
author:
- first_name: Fu
  full_name: Bo, Fu
  last_name: Bo
- first_name: Li
  full_name: Ting, Li
  last_name: Ting
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: 'Bo F, Ting L, Hemsel T. A simple pre-stress estimating method of langevin
    transducers. In: <i>Piezoelectricity, Acoustic Waves, and Device Applications,
    2008. SPAWDA 2008. Symposium On</i>. ; 2008:324-327. doi:<a href="https://doi.org/10.1109/SPAWDA.2008.4775801">10.1109/SPAWDA.2008.4775801</a>'
  apa: Bo, F., Ting, L., &#38; Hemsel, T. (2008). A simple pre-stress estimating method
    of langevin transducers. In <i>Piezoelectricity, Acoustic Waves, and Device Applications,
    2008. SPAWDA 2008. Symposium on</i> (pp. 324–327). <a href="https://doi.org/10.1109/SPAWDA.2008.4775801">https://doi.org/10.1109/SPAWDA.2008.4775801</a>
  bibtex: '@inproceedings{Bo_Ting_Hemsel_2008, title={A simple pre-stress estimating
    method of langevin transducers}, DOI={<a href="https://doi.org/10.1109/SPAWDA.2008.4775801">10.1109/SPAWDA.2008.4775801</a>},
    booktitle={Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA
    2008. Symposium on}, author={Bo, Fu and Ting, Li and Hemsel, Tobias}, year={2008},
    pages={324–327} }'
  chicago: Bo, Fu, Li Ting, and Tobias Hemsel. “A Simple Pre-Stress Estimating Method
    of Langevin Transducers.” In <i>Piezoelectricity, Acoustic Waves, and Device Applications,
    2008. SPAWDA 2008. Symposium On</i>, 324–27, 2008. <a href="https://doi.org/10.1109/SPAWDA.2008.4775801">https://doi.org/10.1109/SPAWDA.2008.4775801</a>.
  ieee: F. Bo, L. Ting, and T. Hemsel, “A simple pre-stress estimating method of langevin
    transducers,” in <i>Piezoelectricity, Acoustic Waves, and Device Applications,
    2008. SPAWDA 2008. Symposium on</i>, 2008, pp. 324–327.
  mla: Bo, Fu, et al. “A Simple Pre-Stress Estimating Method of Langevin Transducers.”
    <i>Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA 2008.
    Symposium On</i>, 2008, pp. 324–27, doi:<a href="https://doi.org/10.1109/SPAWDA.2008.4775801">10.1109/SPAWDA.2008.4775801</a>.
  short: 'F. Bo, L. Ting, T. Hemsel, in: Piezoelectricity, Acoustic Waves, and Device
    Applications, 2008. SPAWDA 2008. Symposium On, 2008, pp. 324–327.'
date_created: 2019-04-29T11:16:13Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1109/SPAWDA.2008.4775801
keyword:
- capacitors
- impedance convertors
- piezoelectric transducers
- stress analysis
- Langevin transducers
- basic circuit theory
- capacitor
- impedance converter
- piezoelectric equation
- pre-stress estimating method
- voltmeter
- Capacitors
- Educational institutions
- Equations
- Force measurement
- Impedance measurement
- Manufacturing
- Mechatronics
- Piezoelectric transducers
- Voltage
- Voltmeters
- Langevin transducer
- capacitor
- piezoelectric element
- pre-stress
language:
- iso: eng
page: 324-327
publication: Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA
  2008. Symposium on
status: public
title: A simple pre-stress estimating method of langevin transducers
type: conference
user_id: '55222'
year: '2008'
...