[{"citation":{"short":"J. Rautenberg, B. Henning, in: 2008, pp. 148–151.","chicago":"Rautenberg, Jens, and Bernd Henning. “Simultaneous Direct and Indirect Measurement of Sound Velocities,” 148–51, 2008.","apa":"Rautenberg, J., &#38; Henning, B. (2008). Simultaneous direct and indirect measurement of sound velocities (pp. 148–151). Presented at the Eurosensors XXII, Dresden.","ieee":"J. Rautenberg and B. Henning, “Simultaneous direct and indirect measurement of sound velocities,” presented at the Eurosensors XXII, Dresden, 2008, pp. 148–151.","ama":"Rautenberg J, Henning B. Simultaneous direct and indirect measurement of sound velocities. In: ; 2008:148-151.","bibtex":"@inproceedings{Rautenberg_Henning_2008, title={Simultaneous direct and indirect measurement of sound velocities}, author={Rautenberg, Jens and Henning, Bernd}, year={2008}, pages={148–151} }","mla":"Rautenberg, Jens, and Bernd Henning. <i>Simultaneous Direct and Indirect Measurement of Sound Velocities</i>. 2008, pp. 148–51."},"abstract":[{"lang":"eng","text":"This contribution is about different types of sonagram processing and their application for the simultaneous direct and indirect measurement of both the longitudinal and the transversal ultrasound velocities of highly absorbing isotropic synthetic polymers. Therefore, the pulse transmission of an initially longitudinal wave through a hollow cylindrical specimen is investigated experimentally and theoretically."}],"date_created":"2019-12-13T10:43:55Z","department":[{"_id":"49"}],"type":"conference","author":[{"first_name":"Jens","last_name":"Rautenberg","full_name":"Rautenberg, Jens"},{"id":"213","first_name":"Bernd","last_name":"Henning","full_name":"Henning, Bernd"}],"conference":{"end_date":"10.09.2008","location":"Dresden","start_date":"07.09.2008","name":"Eurosensors XXII"},"year":"2008","status":"public","title":"Simultaneous direct and indirect measurement of sound velocities","date_updated":"2022-01-06T06:52:20Z","language":[{"iso":"eng"}],"_id":"15327","page":"148-151","user_id":"15911"},{"date_created":"2019-12-13T10:45:48Z","type":"patent","department":[{"_id":"49"}],"citation":{"mla":"Rautenberg, Jens, et al. <i>Piezosensor Zur Temperaturmessung</i>. 2008.","ama":"Rautenberg J, Ziegler H, Gaugler U, et al. Piezosensor zur Temperaturmessung. 2008.","bibtex":"@article{Rautenberg_Ziegler_Gaugler_Dietz_Unverzagt_Kehl_Henning_2008, title={Piezosensor zur Temperaturmessung}, author={Rautenberg, Jens and Ziegler, Horst and Gaugler, Ulrich and Dietz, Gerhard and Unverzagt, Carsten and Kehl, Romina and Henning, Bernd}, year={2008} }","apa":"Rautenberg, J., Ziegler, H., Gaugler, U., Dietz, G., Unverzagt, C., Kehl, R., &#38; Henning, B. (2008). Piezosensor zur Temperaturmessung.","ieee":"J. Rautenberg <i>et al.</i>, “Piezosensor zur Temperaturmessung.” 2008.","chicago":"Rautenberg, Jens, Horst Ziegler, Ulrich Gaugler, Gerhard Dietz, Carsten Unverzagt, Romina Kehl, and Bernd Henning. “Piezosensor Zur Temperaturmessung,” 2008.","short":"J. Rautenberg, H. Ziegler, U. Gaugler, G. Dietz, C. Unverzagt, R. Kehl, B. Henning, (2008)."},"ipc":"GO1F 1/66","_id":"15328","publication_date":"2008","user_id":"15911","year":"2008","status":"public","title":"Piezosensor zur Temperaturmessung","author":[{"full_name":"Rautenberg, Jens","first_name":"Jens","last_name":"Rautenberg"},{"full_name":"Ziegler, Horst","first_name":"Horst","last_name":"Ziegler"},{"full_name":"Gaugler, Ulrich","first_name":"Ulrich","last_name":"Gaugler"},{"last_name":"Dietz","first_name":"Gerhard","full_name":"Dietz, Gerhard"},{"full_name":"Unverzagt, Carsten","last_name":"Unverzagt","first_name":"Carsten"},{"full_name":"Kehl, Romina","first_name":"Romina","last_name":"Kehl"},{"id":"213","full_name":"Henning, Bernd","last_name":"Henning","first_name":"Bernd"}],"date_updated":"2022-01-06T06:52:20Z","ipn":"DE 102007020491 A1"},{"ipn":"EP 1985974 A3","date_updated":"2022-01-06T06:52:20Z","author":[{"full_name":"Rautenberg, Jens","first_name":"Jens","last_name":"Rautenberg"},{"full_name":"Ziegler, Horst","last_name":"Ziegler","first_name":"Horst"},{"full_name":"Gaugler, Ulrich","first_name":"Ulrich","last_name":"Gaugler"},{"last_name":"Dietz","first_name":"Gerhard","full_name":"Dietz, Gerhard"},{"full_name":"Unverzagt, Carsten","last_name":"Unverzagt","first_name":"Carsten"},{"full_name":"Kehl, Romina","last_name":"Kehl","first_name":"Romina"},{"id":"213","last_name":"Henning","first_name":"Bernd","full_name":"Henning, Bernd"}],"year":"2008","title":"Verfahren zur Bestimmung einer Eigenschaft eines strömenden Mediums","status":"public","publication_date":"2008","user_id":"15911","_id":"15329","ipc":"G01F 1/66","citation":{"bibtex":"@article{Rautenberg_Ziegler_Gaugler_Dietz_Unverzagt_Kehl_Henning_2008, title={Verfahren zur Bestimmung einer Eigenschaft eines strömenden Mediums}, author={Rautenberg, Jens and Ziegler, Horst and Gaugler, Ulrich and Dietz, Gerhard and Unverzagt, Carsten and Kehl, Romina and Henning, Bernd}, year={2008} }","chicago":"Rautenberg, Jens, Horst Ziegler, Ulrich Gaugler, Gerhard Dietz, Carsten Unverzagt, Romina Kehl, and Bernd Henning. “Verfahren Zur Bestimmung Einer Eigenschaft Eines Strömenden Mediums,” 2008.","short":"J. Rautenberg, H. Ziegler, U. Gaugler, G. Dietz, C. Unverzagt, R. Kehl, B. Henning, (2008).","ama":"Rautenberg J, Ziegler H, Gaugler U, et al. Verfahren zur Bestimmung einer Eigenschaft eines strömenden Mediums. 2008.","ieee":"J. Rautenberg <i>et al.</i>, “Verfahren zur Bestimmung einer Eigenschaft eines strömenden Mediums.” 2008.","apa":"Rautenberg, J., Ziegler, H., Gaugler, U., Dietz, G., Unverzagt, C., Kehl, R., &#38; Henning, B. (2008). Verfahren zur Bestimmung einer Eigenschaft eines strömenden Mediums.","mla":"Rautenberg, Jens, et al. <i>Verfahren Zur Bestimmung Einer Eigenschaft Eines Strömenden Mediums</i>. 2008."},"department":[{"_id":"49"}],"type":"patent","date_created":"2019-12-13T10:48:08Z"},{"citation":{"mla":"Henning, Bernd. <i>Ultraschall-Messtechnik Und Ultraschall-Tomografie</i>. 29AD.","bibtex":"@book{Henning_29AD, title={Ultraschall-Messtechnik und Ultraschall-Tomografie}, author={Henning, Bernd}, year={29AD} }","ama":"Henning B. <i>Ultraschall-Messtechnik Und Ultraschall-Tomografie</i>.; 29AD.","ieee":"B. Henning, <i>Ultraschall-Messtechnik und Ultraschall-Tomografie</i>. 29AD.","apa":"Henning, B. (29AD). <i>Ultraschall-Messtechnik und Ultraschall-Tomografie</i>.","short":"B. Henning, Ultraschall-Messtechnik Und Ultraschall-Tomografie, 29AD.","chicago":"Henning, Bernd. <i>Ultraschall-Messtechnik Und Ultraschall-Tomografie</i>, 29AD."},"date_created":"2019-12-04T11:51:03Z","type":"misc","department":[{"_id":"49"}],"title":"Ultraschall-Messtechnik und Ultraschall-Tomografie","status":"public","year":"2008","author":[{"id":"213","last_name":"Henning","first_name":"Bernd","full_name":"Henning, Bernd"}],"date_updated":"2022-01-06T06:52:19Z","language":[{"iso":"eng"}],"_id":"15243","user_id":"15911"},{"abstract":[{"text":"Ultraschallsensoren werden heute in der industriellen Messtechnik vielfach eingesetzt, zum Beispiel für die Durchflussmessung, Füllstandmessung, Konzentrationsanalyse, zerstörungsfreie Werkstoffdiagnostik und anderes mehr. Dabei  wachsen die Anforderungen hinsichtlich der zu gewährleistenden Messunsicherheit, der Zuverlässigkeit sowie einer erweiterter Funktionalität ständig. Erreichen lassen sich diese Ziele natürlich nur mit Hilfe verbesserter Ultraschallsensoren und optimal gestalteter Messanordnungen. Die permanente Forderung, die Produktentwicklungszeiten sowie die Produktherstellungskosten deutlich zu minimieren, macht den Einsatz moderner Entwicklungswerkzeuge für das Sensordesign unumgänglich. ","lang":"eng"}],"citation":{"mla":"Henning, Bernd. <i>Schallfeldsimulation Für Die Ultraschallmesstechnik</i>. 2007, pp. 40–42.","bibtex":"@book{Henning_2007, title={Schallfeldsimulation für die Ultraschallmesstechnik}, author={Henning, Bernd}, year={2007}, pages={40–42} }","ama":"Henning B. <i>Schallfeldsimulation Für Die Ultraschallmesstechnik</i>.; 2007:40-42.","ieee":"B. Henning, <i>Schallfeldsimulation für die Ultraschallmesstechnik</i>. 2007, pp. 40–42.","apa":"Henning, B. (2007). <i>Schallfeldsimulation für die Ultraschallmesstechnik</i> (pp. 40–42).","short":"B. Henning, Schallfeldsimulation Für Die Ultraschallmesstechnik, 2007.","chicago":"Henning, Bernd. <i>Schallfeldsimulation Für Die Ultraschallmesstechnik</i>, 2007."},"department":[{"_id":"49"}],"type":"misc","date_created":"2019-12-17T13:18:15Z","date_updated":"2022-01-06T06:52:20Z","author":[{"full_name":"Henning, Bernd","first_name":"Bernd","last_name":"Henning","id":"213"}],"year":"2007","title":"Schallfeldsimulation für die Ultraschallmesstechnik","status":"public","user_id":"15911","language":[{"iso":"eng"}],"_id":"15336","page":"40-42"},{"citation":{"short":"B. Henning, J. Rautenberg, in: 2007.","chicago":"Henning, Bernd, and Jens Rautenberg. “Acoustical Waveguides for Sensor Applications,” 2007.","apa":"Henning, B., &#38; Rautenberg, J. (2007). Acoustical waveguides for sensor applications. Presented at the International Congress on Ultrasonics (ICU), Wien.","ieee":"B. Henning and J. Rautenberg, “Acoustical waveguides for sensor applications,” presented at the International Congress on Ultrasonics (ICU), Wien, 2007.","ama":"Henning B, Rautenberg J. Acoustical waveguides for sensor applications. In: ; 2007.","bibtex":"@inproceedings{Henning_Rautenberg_2007, title={Acoustical waveguides for sensor applications}, author={Henning, Bernd and Rautenberg, Jens}, year={2007} }","mla":"Henning, Bernd, and Jens Rautenberg. <i>Acoustical Waveguides for Sensor Applications</i>. 2007."},"abstract":[{"text":"The continuous measurement of rheological properties (density and viscosity) or material properties (concentration of selected substances) of liquid mixtures in the chemical industry or in the food industry is a great challenge to this day. Standard chemical sensors are often not suitable for industrial processes because of their slow sensor response and their limited robustness due to the direct contact to process media. Ultrasonic sensor systems meet the practical requirements of a chemical sensor quite well. Current ultrasonic sensor systems are already widely used as acoustic chemical sensors to measure concentration of selected substances or to monitor the course of polymerization, crystallization or fermentation processes. Useable acoustic properties for the characterization of liquid mixtures are sound velocity, sound absorption and acoustic impedance in consideration of temperature. This contribution will give a short overview of the state of the art and several trends for the use of ultrasonic sensor systems in process applications. Currently there are many activities to use acoustic waveguides for above mentioned sensor applications. By means of two selected examples (density measurement and determination of acoustic properties of highly absorbing synthetic polymers) it will presented new developed measurement principles using acoustic waveguides.","lang":"eng"}],"date_created":"2019-12-17T13:20:39Z","department":[{"_id":"49"}],"type":"conference","author":[{"id":"213","full_name":"Henning, Bernd","first_name":"Bernd","last_name":"Henning"},{"first_name":"Jens","last_name":"Rautenberg","full_name":"Rautenberg, Jens"}],"conference":{"end_date":"12.04.2007","location":"Wien","name":"International Congress on Ultrasonics (ICU)","start_date":"09.04.2007"},"title":"Acoustical waveguides for sensor applications","year":"2007","status":"public","date_updated":"2022-01-06T06:52:20Z","language":[{"iso":"eng"}],"_id":"15337","user_id":"15911"},{"publication":"Proceedings of the International Congress on Ultrasonics","citation":{"apa":"Rautenberg, J., &#38; Henning, B. (2007). Measurement of the acoustic properties of highly absorbing synthetic polymers. In <i>Proceedings of the International Congress on Ultrasonics</i>.","ieee":"J. Rautenberg and B. Henning, “Measurement of the acoustic properties of highly absorbing synthetic polymers,” in <i>Proceedings of the International Congress on Ultrasonics</i>, 2007.","short":"J. Rautenberg, B. Henning, in: Proceedings of the International Congress on Ultrasonics, 2007.","chicago":"Rautenberg, Jens, and Bernd Henning. “Measurement of the Acoustic Properties of Highly Absorbing Synthetic Polymers.” In <i>Proceedings of the International Congress on Ultrasonics</i>, 2007.","mla":"Rautenberg, Jens, and Bernd Henning. “Measurement of the Acoustic Properties of Highly Absorbing Synthetic Polymers.” <i>Proceedings of the International Congress on Ultrasonics</i>, 2007.","ama":"Rautenberg J, Henning B. Measurement of the acoustic properties of highly absorbing synthetic polymers. In: <i>Proceedings of the International Congress on Ultrasonics</i>. ; 2007.","bibtex":"@inproceedings{Rautenberg_Henning_2007, title={Measurement of the acoustic properties of highly absorbing synthetic polymers}, booktitle={Proceedings of the International Congress on Ultrasonics}, author={Rautenberg, Jens and Henning, Bernd}, year={2007} }"},"abstract":[{"text":"There are a couple of acoustic systems that are well suited for continuous and reliable concentration measurement of liquids, but the reliability is a great challenge: Most systems determine the amplitude ratio of deflected ultrasound bursts at different boundaries as well as the sound velocity of the liquid in order to calculate its acoustic impedance and therewith its density. The problem is the sensitivity of variations of reference material properties as well as abrasion or soiling of the boundaries. This contribution is about a new model-based method that uses the whole surface of an acoustic waveguide as reference boundary. On the one hand the integral over a large boundary decreases influence of small boundary defects. On the other hand it is possible to analyze different modes of sound in the fluid. This redundancy can be used to increase reliability. The decomposition of the received signal in its modal components by means of principle component analysis will be discussed in detail. It will be shown that it is possible to determine the amplitudes of each mode by means of one measured signal at the end of the waveguide, even if the transducer and the electronic components are of very simple kind","lang":"eng"}],"date_created":"2019-12-17T13:21:32Z","type":"conference","department":[{"_id":"49"}],"status":"public","title":"Measurement of the acoustic properties of highly absorbing synthetic polymers","year":"2007","author":[{"full_name":"Rautenberg, Jens","first_name":"Jens","last_name":"Rautenberg"},{"last_name":"Henning","first_name":"Bernd","full_name":"Henning, Bernd","id":"213"}],"date_updated":"2022-01-06T06:52:20Z","language":[{"iso":"eng"}],"_id":"15338","user_id":"15911"},{"language":[{"iso":"eng"}],"_id":"15339","page":"87-92","volume":"II","user_id":"15911","conference":{"start_date":"22.05.2007","name":"13th International Conference Sensor + Test 2007","location":"Nürnberg","end_date":"24.05.2007"},"publication_identifier":{"isbn":["978-3-9810993-2-4"]},"author":[{"last_name":"Rautenberg","first_name":"Jens","full_name":"Rautenberg, Jens"},{"full_name":"Henning, Bernd","first_name":"Bernd","last_name":"Henning","id":"213"}],"status":"public","title":"New approach for the reliable measurement of acoustic impedance of liquids in an acoustic waveguide","year":"2007","date_updated":"2022-01-06T06:52:20Z","date_created":"2019-12-17T13:22:24Z","department":[{"_id":"49"}],"type":"conference","citation":{"apa":"Rautenberg, J., &#38; Henning, B. (2007). New approach for the reliable measurement of acoustic impedance of liquids in an acoustic waveguide (Vol. II, pp. 87–92). Presented at the 13th International Conference Sensor + Test 2007, Nürnberg.","ieee":"J. Rautenberg and B. Henning, “New approach for the reliable measurement of acoustic impedance of liquids in an acoustic waveguide,” presented at the 13th International Conference Sensor + Test 2007, Nürnberg, 2007, vol. II, pp. 87–92.","short":"J. Rautenberg, B. Henning, in: 2007, pp. 87–92.","chicago":"Rautenberg, Jens, and Bernd Henning. “New Approach for the Reliable Measurement of Acoustic Impedance of Liquids in an Acoustic Waveguide,” II:87–92, 2007.","mla":"Rautenberg, Jens, and Bernd Henning. <i>New Approach for the Reliable Measurement of Acoustic Impedance of Liquids in an Acoustic Waveguide</i>. Vol. II, 2007, pp. 87–92.","ama":"Rautenberg J, Henning B. New approach for the reliable measurement of acoustic impedance of liquids in an acoustic waveguide. In: Vol II. ; 2007:87-92.","bibtex":"@inproceedings{Rautenberg_Henning_2007, title={New approach for the reliable measurement of acoustic impedance of liquids in an acoustic waveguide}, volume={II}, author={Rautenberg, Jens and Henning, Bernd}, year={2007}, pages={87–92} }"},"abstract":[{"lang":"eng","text":"Continuous and reliable concentration measurement of liquids still is a great challenge as the sensor systems have to meet high industrial requirements. Apart from chemical sensors there are a couple of acoustic systems [1] that are well suited for a lot of industrial applications. Most of them determine the amplitude ratio of deflected ultrasound bursts at different boundaries as well as the sound velocity of the liquid in order to calculate its acoustic impedance and therewith its density. The advantages of acoustic sensors are their robustness and their fast response. Their disadvantages are sensitivity against variations of the reference material properties as well as abrasion or soiling of the boundaries. This contribution is about a new model-based method that uses the whole surface of an acoustic waveguide as reference boundary: It has turned out that the principal components of a signal at the end of the waveguide can be assigned to the different propagative acoustic modes (Fig. 1). Therefore it is necessary to use different simulation tools, e.g. FEM and modal analysis (Fig. 2). With this it is possible to determine the amplitudes of each mode by means of one measured signal at the end of the waveguide and Gauss Algorithm even if the transducer is of very simple kind [2]. Therewith it is possible to get redundant information -- one amplitude for each mode -- for the liquid impedance. In addition to that it is possible to generate an acoustic reference signal without information about the liquid impedance but dissipation if we use the fundamental mode. The different signal amplitudes and a model of acoustic wave propagation [2, 3] offer the possibility to distinguish between dissipation in the liquid and attenuation due to the impedance relations. Moreover, if there are enough analysable amplitudes available, variations of the reference material properties can be determined."}]},{"department":[{"_id":"49"}],"type":"conference","date_created":"2019-12-17T13:23:16Z","abstract":[{"lang":"eng","text":"There are a couple of acoustic systems that are well suited for continuous and reliable concentration measurement of liquids, but the reliability is a great challenge: Most systems determine the amplitude ratio of deflected ultrasound bursts at different boundaries as well as the sound velocity of the liquid in order to calculate its acoustic impedance and therewith its density. The problem is the sensitivity of variations of reference material properties as well as abrasion or soiling of the boundaries. This contribution is about a new model-based method that uses the whole surface of an acoustic waveguide as reference boundary. On the one hand the integral over a large boundary decreases influence of small boundary defects. On the other hand it is possible to analyze different modes of sound in the fluid. This redundancy can be used to increase reliability. The decomposition of the received signal in its modal components by means of principle component analysis will be discussed in detail. It will be shown that it is possible to determine the amplitudes of each mode by means of one measured signal at the end of the waveguide, even if the transducer and the electronic components are of very simple kind."}],"citation":{"mla":"Rautenberg, Jens, and Bernd Henning. “Separation of Mode-Specific Signals in a Fluid-Filled Circular Waveguide.” <i>Proceedings of the International Congress on Ultrasonics</i>, 2007.","bibtex":"@inproceedings{Rautenberg_Henning_2007, title={Separation of mode-specific signals in a fluid-filled circular waveguide}, booktitle={Proceedings of the International Congress on Ultrasonics}, author={Rautenberg, Jens and Henning, Bernd}, year={2007} }","ama":"Rautenberg J, Henning B. Separation of mode-specific signals in a fluid-filled circular waveguide. In: <i>Proceedings of the International Congress on Ultrasonics</i>. ; 2007.","ieee":"J. Rautenberg and B. Henning, “Separation of mode-specific signals in a fluid-filled circular waveguide,” in <i>Proceedings of the International Congress on Ultrasonics</i>, 2007.","apa":"Rautenberg, J., &#38; Henning, B. (2007). Separation of mode-specific signals in a fluid-filled circular waveguide. In <i>Proceedings of the International Congress on Ultrasonics</i>.","chicago":"Rautenberg, Jens, and Bernd Henning. “Separation of Mode-Specific Signals in a Fluid-Filled Circular Waveguide.” In <i>Proceedings of the International Congress on Ultrasonics</i>, 2007.","short":"J. Rautenberg, B. Henning, in: Proceedings of the International Congress on Ultrasonics, 2007."},"publication":"Proceedings of the International Congress on Ultrasonics","user_id":"15911","language":[{"iso":"eng"}],"_id":"15340","date_updated":"2022-01-06T06:52:20Z","author":[{"first_name":"Jens","last_name":"Rautenberg","full_name":"Rautenberg, Jens"},{"id":"213","first_name":"Bernd","last_name":"Henning","full_name":"Henning, Bernd"}],"year":"2007","title":"Separation of mode-specific signals in a fluid-filled circular waveguide","status":"public"},{"citation":{"mla":"Sonnenberg, Hans-Michael, et al. <i>Ultraschallzähler</i>. 2007.","bibtex":"@book{Sonnenberg_Schmidt-Schoenian_Rautenberg_Unverzagt_Kehl_Henning_2007, title={Ultraschallzähler}, author={Sonnenberg, Hans-Michael and Schmidt-Schoenian, Axel and Rautenberg, Jens and Unverzagt, Carsten and Kehl, Romina and Henning, Bernd}, year={2007} }","ama":"Sonnenberg H-M, Schmidt-Schoenian A, Rautenberg J, Unverzagt C, Kehl R, Henning B. <i>Ultraschallzähler</i>.; 2007.","ieee":"H.-M. Sonnenberg, A. Schmidt-Schoenian, J. Rautenberg, C. Unverzagt, R. Kehl, and B. Henning, <i>Ultraschallzähler</i>. 2007.","apa":"Sonnenberg, H.-M., Schmidt-Schoenian, A., Rautenberg, J., Unverzagt, C., Kehl, R., &#38; Henning, B. (2007). <i>Ultraschallzähler</i>.","short":"H.-M. Sonnenberg, A. Schmidt-Schoenian, J. Rautenberg, C. Unverzagt, R. Kehl, B. Henning, Ultraschallzähler, 2007.","chicago":"Sonnenberg, Hans-Michael, Axel Schmidt-Schoenian, Jens Rautenberg, Carsten Unverzagt, Romina Kehl, and Bernd Henning. <i>Ultraschallzähler</i>, 2007."},"date_created":"2019-12-17T13:24:08Z","department":[{"_id":"49"}],"type":"misc","author":[{"first_name":"Hans-Michael","last_name":"Sonnenberg","full_name":"Sonnenberg, Hans-Michael"},{"last_name":"Schmidt-Schoenian","first_name":"Axel","full_name":"Schmidt-Schoenian, Axel"},{"first_name":"Jens","last_name":"Rautenberg","full_name":"Rautenberg, Jens"},{"first_name":"Carsten","last_name":"Unverzagt","full_name":"Unverzagt, Carsten"},{"first_name":"Romina","last_name":"Kehl","full_name":"Kehl, Romina"},{"full_name":"Henning, Bernd","first_name":"Bernd","last_name":"Henning","id":"213"}],"year":"2007","status":"public","title":"Ultraschallzähler","date_updated":"2022-01-06T06:52:20Z","language":[{"iso":"eng"}],"_id":"15341","user_id":"15911"},{"publication":"Fortschritte der Akustik","citation":{"mla":"Vössing, Torsten, et al. “Sensorelektronik Zur Bestimmung von Reflexionen Sensoroberflächennaher Schichten.” <i>Fortschritte Der Akustik</i>, edited by Schew-Ram Mehra, Dt. Ges. für Akustik, 2007.","ama":"Vössing T, Rautenberg J, Henning B. Sensorelektronik zur Bestimmung von Reflexionen sensoroberflächennaher Schichten. In: Mehra S-R, ed. <i>Fortschritte Der Akustik</i>. Berlin: Dt. Ges. für Akustik; 2007.","bibtex":"@inproceedings{Vössing_Rautenberg_Henning_2007, place={Berlin}, title={Sensorelektronik zur Bestimmung von Reflexionen sensoroberflächennaher Schichten}, booktitle={Fortschritte der Akustik}, publisher={Dt. Ges. für Akustik}, author={Vössing, Torsten and Rautenberg, Jens and Henning, Bernd}, editor={Mehra, Schew-RamEditor}, year={2007} }","apa":"Vössing, T., Rautenberg, J., &#38; Henning, B. (2007). Sensorelektronik zur Bestimmung von Reflexionen sensoroberflächennaher Schichten. In S.-R. Mehra (Ed.), <i>Fortschritte der Akustik</i>. Berlin: Dt. Ges. für Akustik.","ieee":"T. Vössing, J. Rautenberg, and B. Henning, “Sensorelektronik zur Bestimmung von Reflexionen sensoroberflächennaher Schichten,” in <i>Fortschritte der Akustik</i>, 2007.","short":"T. Vössing, J. Rautenberg, B. Henning, in: S.-R. Mehra (Ed.), Fortschritte Der Akustik, Dt. Ges. für Akustik, Berlin, 2007.","chicago":"Vössing, Torsten, Jens Rautenberg, and Bernd Henning. “Sensorelektronik Zur Bestimmung von Reflexionen Sensoroberflächennaher Schichten.” In <i>Fortschritte Der Akustik</i>, edited by Schew-Ram Mehra. Berlin: Dt. Ges. für Akustik, 2007."},"abstract":[{"text":"In der Ultraschallmesstechnik ist der Einsatz des Impuls-Echoverfahrens verbreitet. Wird nur ein Ultraschallwandler eingesetzt, benötigt man für das sequentielle Senden und Empfangen einen Sende-/Empfangsumschalter. Häufig werden aber nicht nur Impulse gesendet, sondern auch sogenannte Bursts, die aus mehreren Wellenzügen bestehen. Die während des Sendebetriebs empfangenen Ultraschallwellen, die z. B. durch Reflexionen von nahe gelegenen Hindernissen entstehen, können bei diesen umschaltenden Systemen nicht ausgewertet werden.\r\nIn diesem Beitrag wird eine Sensor-Interface-Elektronik vorgestellt, die das gleichzeitige Senden und Empfangen von Ultraschallsignalen mit nur einem Ultraschallwandler erlaubt. Die dazu erforderliche Trennung von Sende- und Empfangssignal wird durch einen Richtkoppler ermöglicht, der mit vergleichsweise geringem technischem Aufwand aus Breitbandübertragern aufgebaut ist. Eine geeignete Dimensionierung für die verkoppelten Übertrager wurde durch die Analyse der zugehörigen Streumatrix dieses Aufbaus gefunden. Die Arbeitsweise sowie die Bedeutung der Anpassung der Tore des Richtkopplers wird anhand der Ankopplung verschiedener Medien an den Wandler erläutert. Die angekoppelte akustische Last beeinflusst dabei auch die elektrischen Eigenschaften des Sensors.\r\nDurch den Einsatz dieser Sensorelektronik wird es möglich, Reflexionen in unmittelbarer Nähe der Sensoroberfläche aufzunehmen, ohne dass z. B. Vorlaufkörper eingesetzt werden müssen. Möglichkeiten zur selbsttätigen Abstimmung der Sensorelektronik auf den angeschlossenen Ultraschallwandler bzw. dessen Parameteränderungen werden diskutiert.","lang":"eng"}],"date_created":"2019-12-17T13:25:15Z","place":"Berlin","type":"conference","department":[{"_id":"49"}],"title":"Sensorelektronik zur Bestimmung von Reflexionen sensoroberflächennaher Schichten","status":"public","year":"2007","publication_identifier":{"isbn":["9783980865937"]},"author":[{"last_name":"Vössing","first_name":"Torsten","full_name":"Vössing, Torsten"},{"full_name":"Rautenberg, Jens","first_name":"Jens","last_name":"Rautenberg"},{"full_name":"Henning, Bernd","first_name":"Bernd","last_name":"Henning","id":"213"}],"date_updated":"2022-01-06T06:52:20Z","publisher":"Dt. Ges. für Akustik","_id":"15342","language":[{"iso":"eng"}],"user_id":"15911","editor":[{"first_name":"Schew-Ram","last_name":"Mehra","full_name":"Mehra, Schew-Ram"}]},{"editor":[{"full_name":"Mehra, Schew-Ram","first_name":"Schew-Ram","last_name":"Mehra"}],"user_id":"15911","language":[{"iso":"eng"}],"_id":"15343","publisher":"Dt. Ges. für Akustik","date_updated":"2022-01-06T06:52:20Z","conference":{"end_date":"22.03.2007 ","name":"3. Deutsche Jahrestagung für Akustik (DAGA 2007)","start_date":"19.03.2007 ","location":"Stuttgar"},"publication_identifier":{"isbn":["9783980865937"]},"author":[{"last_name":"Vössing","first_name":"Torsten","full_name":"Vössing, Torsten"},{"full_name":"Rautenberg, Jens","last_name":"Rautenberg","first_name":"Jens"},{"last_name":"Henning","first_name":"Bernd","full_name":"Henning, Bernd","id":"213"}],"title":"Sensorelektronik zur Bestimmung von Reflexionen sensoroberflächennaher Schichten","status":"public","year":"2007","department":[{"_id":"49"}],"type":"conference","place":"Berlin","date_created":"2019-12-17T13:31:04Z","abstract":[{"lang":"eng","text":"In der Ultraschallmesstechnik ist der Einsatz des Impuls-Echoverfahrens verbreitet. Wird nur ein Ultraschallwandler eingesetzt, benötigt man für das sequentielle Senden und Empfangen einen Sende-/Empfangsumschalter. Häufig werden aber nicht nur Impulse gesendet, sondern auch sogenannte Bursts, die aus mehreren Wellenzügen bestehen. Die während des Sendebetriebs empfangenen Ultraschallwellen, die z. B. durch Reflexionen von nahe gelegenen Hindernissen entstehen, können bei diesen umschaltenden Systemen nicht ausgewertet werden.\r\nIn diesem Beitrag wird eine Sensor-Interface-Elektronik vorgestellt, die das gleichzeitige Senden und Empfangen von Ultraschallsignalen mit nur einem Ultraschallwandler erlaubt. Die dazu erforderliche Trennung von Sende- und Empfangssignal wird durch einen Richtkoppler ermöglicht, der mit vergleichsweise geringem technischem Aufwand aus Breitbandübertragern aufgebaut ist. Eine geeignete Dimensionierung für die verkoppelten Übertrager wurde durch die Analyse der zugehörigen Streumatrix dieses Aufbaus gefunden. Die Arbeitsweise sowie die Bedeutung der Anpassung der Tore des Richtkopplers wird anhand der Ankopplung verschiedener Medien an den Wandler erläutert. Die angekoppelte akustische Last beeinflusst dabei auch die elektrischen Eigenschaften des Sensors.\r\nDurch den Einsatz dieser Sensorelektronik wird es möglich, Reflexionen in unmittelbarer Nähe der Sensoroberfläche aufzunehmen, ohne dass z. B. Vorlaufkörper eingesetzt werden müssen. Möglichkeiten zur selbsttätigen Abstimmung der Sensorelektronik auf den angeschlossenen Ultraschallwandler bzw. dessen Parameteränderungen werden diskutiert."}],"citation":{"ama":"Vössing T, Rautenberg J, Henning B. Sensorelektronik zur Bestimmung von Reflexionen sensoroberflächennaher Schichten. In: Mehra S-R, ed. <i>Fortschritte Der Akustik</i>. Berlin: Dt. Ges. für Akustik; 2007.","bibtex":"@inproceedings{Vössing_Rautenberg_Henning_2007, place={Berlin}, title={Sensorelektronik zur Bestimmung von Reflexionen sensoroberflächennaher Schichten}, booktitle={Fortschritte der Akustik}, publisher={Dt. Ges. für Akustik}, author={Vössing, Torsten and Rautenberg, Jens and Henning, Bernd}, editor={Mehra, Schew-RamEditor}, year={2007} }","mla":"Vössing, Torsten, et al. “Sensorelektronik Zur Bestimmung von Reflexionen Sensoroberflächennaher Schichten.” <i>Fortschritte Der Akustik</i>, edited by Schew-Ram Mehra, Dt. Ges. für Akustik, 2007.","chicago":"Vössing, Torsten, Jens Rautenberg, and Bernd Henning. “Sensorelektronik Zur Bestimmung von Reflexionen Sensoroberflächennaher Schichten.” In <i>Fortschritte Der Akustik</i>, edited by Schew-Ram Mehra. Berlin: Dt. Ges. für Akustik, 2007.","short":"T. Vössing, J. Rautenberg, B. Henning, in: S.-R. Mehra (Ed.), Fortschritte Der Akustik, Dt. Ges. für Akustik, Berlin, 2007.","apa":"Vössing, T., Rautenberg, J., &#38; Henning, B. (2007). Sensorelektronik zur Bestimmung von Reflexionen sensoroberflächennaher Schichten. In S.-R. Mehra (Ed.), <i>Fortschritte der Akustik</i>. Berlin: Dt. Ges. für Akustik.","ieee":"T. Vössing, J. Rautenberg, and B. Henning, “Sensorelektronik zur Bestimmung von Reflexionen sensoroberflächennaher Schichten,” in <i>Fortschritte der Akustik</i>, Stuttgar, 2007."},"publication":"Fortschritte der Akustik"},{"abstract":[{"lang":"eng","text":"In many applications ultrasonic transducers are used for transmitting and receiving ultrasonic waves. Ultrasonic sensor systems meet the practical requirements of industrial applications quite well. Typical sensor applications are for example the measurement of distance and thickness. Especially if only one ultrasonic transceiver and the well-known pulse-echo-method are used, the sensor electronics has to switch from transmitting to receiving mode. This is one of the most limiting properties because the probe can not receive echoes from nearby obstacles or thin material layers. This contribution deals with the development of an electronic interface circuit for ultrasonic sensors allowing transmitting and receiving of acoustic signals simultaneously. There are already several methods to separate the transmitted from the received signal for instance the well-known circulator in the telephone, the differential transformer mentioned by Bradfield [1] or a directional coupler [2]. The directional coupler consists of two broadband transformers linked with each other in such a way that it equally distributes the input power at port one to the third and fourth port, while port two is isolated. This circuit is also known as 3 dB directional coupler and makes it possible to get reference echoes directly from the interface between the sensor and the medium of interest. Several reflectors or multiple sound paths such as used in ultrasonic density measurement systems are unnecessary [3]."}],"citation":{"apa":"Vössing, T., Rautenberg, J., Kehl, R., &#38; Henning, B. (2007). Simultaneous transmitting and receiving with ultrasonic sensors. Presented at the 3th International Conference Sensor + Test 2007, Nuremberg.","ieee":"T. Vössing, J. Rautenberg, R. Kehl, and B. Henning, “Simultaneous transmitting and receiving with ultrasonic sensors,” presented at the 3th International Conference Sensor + Test 2007, Nuremberg, 2007.","chicago":"Vössing, Torsten, Jens Rautenberg, Romina Kehl, and Bernd Henning. “Simultaneous Transmitting and Receiving with Ultrasonic Sensors,” 2007.","short":"T. Vössing, J. Rautenberg, R. Kehl, B. Henning, in: 2007.","mla":"Vössing, Torsten, et al. <i>Simultaneous Transmitting and Receiving with Ultrasonic Sensors</i>. 2007.","ama":"Vössing T, Rautenberg J, Kehl R, Henning B. Simultaneous transmitting and receiving with ultrasonic sensors. In: ; 2007.","bibtex":"@inproceedings{Vössing_Rautenberg_Kehl_Henning_2007, title={Simultaneous transmitting and receiving with ultrasonic sensors}, author={Vössing, Torsten and Rautenberg, Jens and Kehl, Romina and Henning, Bernd}, year={2007} }"},"type":"conference","department":[{"_id":"49"}],"date_created":"2019-12-17T14:22:24Z","date_updated":"2022-01-06T06:52:21Z","title":"Simultaneous transmitting and receiving with ultrasonic sensors","status":"public","year":"2007","conference":{"location":"Nuremberg","start_date":"22.05.2007","name":"3th International Conference Sensor + Test 2007","end_date":"24.05.2007"},"author":[{"last_name":"Vössing","first_name":"Torsten","full_name":"Vössing, Torsten"},{"first_name":"Jens","last_name":"Rautenberg","full_name":"Rautenberg, Jens"},{"last_name":"Kehl","first_name":"Romina","full_name":"Kehl, Romina"},{"first_name":"Bernd","last_name":"Henning","full_name":"Henning, Bernd","id":"213"}],"publication_identifier":{"isbn":["978-3-9810993-2-4"]},"user_id":"15911","language":[{"iso":"eng"}],"_id":"15344"},{"date_updated":"2022-01-06T06:52:21Z","year":"2007","status":"public","title":"Ultrasonic measurement of the characteristic acoustic impedance using a directional coupler to analyse reference reflections from thin layers","author":[{"full_name":"Vössing, Torsten","first_name":"Torsten","last_name":"Vössing"},{"first_name":"Jens","last_name":"Rautenberg","full_name":"Rautenberg, Jens"},{"first_name":"Andreas","last_name":"Schröder","full_name":"Schröder, Andreas"},{"id":"213","first_name":"Bernd","last_name":"Henning","full_name":"Henning, Bernd"}],"conference":{"name":"8th International Conference on Electronic Measurement & Instruments, ICEMI 2007","start_date":"16.08.2007","location":"Xi’An, China","end_date":"18.08.2007"},"user_id":"15911","language":[{"iso":"eng"}],"_id":"15345","abstract":[{"lang":"eng","text":"In this contribution the application of a directional coupler for analysing reference reflections from thin layers in ultrasonic measurement of the characteristic acoustic impedance is presented. In a prior work ([2]) it was shown, that a directional coupler can be used in combination with an ultrasonic transducer to get reflections from layers that are very close to the transducers surface. Since the directional coupler provides the opportunity to send and receive signals at the same time, these layers can be very thin ({\\textless} 1 mm). Reflections that arrive at the transducer during the sending process can be analysed because the directional coupler separates the receiving signal from the input signal of the transducer. When only one transducer is used to measure the acoustic impedance of a liquid the reflections from the thin layer reach the transducer after a very short time. The reflections sum up and with the concept of reflection and transmission coefficients a relation is found between the measured amplitude and a reference amplitude which was measured before. The exciting signal could be a burst of some periods of a sinusoidal alternating voltage. The advantages of using thin layers for the described task are the small geometry that allows flexible application of the sensor and the minimisation of temperature gradients within the medium because thin layers can follow thermal fluctuations faster than thick ones. In this paper the functional principle and first achievements are presented."}],"citation":{"apa":"Vössing, T., Rautenberg, J., Schröder, A., &#38; Henning, B. (2007). Ultrasonic measurement of the characteristic acoustic impedance using a directional coupler to analyse reference reflections from thin layers. Presented at the 8th International Conference on Electronic Measurement &#38; Instruments, ICEMI 2007, Xi’An, China.","ieee":"T. Vössing, J. Rautenberg, A. Schröder, and B. Henning, “Ultrasonic measurement of the characteristic acoustic impedance using a directional coupler to analyse reference reflections from thin layers,” presented at the 8th International Conference on Electronic Measurement &#38; Instruments, ICEMI 2007, Xi’An, China, 2007.","chicago":"Vössing, Torsten, Jens Rautenberg, Andreas Schröder, and Bernd Henning. “Ultrasonic Measurement of the Characteristic Acoustic Impedance Using a Directional Coupler to Analyse Reference Reflections from Thin Layers,” 2007.","short":"T. Vössing, J. Rautenberg, A. Schröder, B. Henning, in: 2007.","mla":"Vössing, Torsten, et al. <i>Ultrasonic Measurement of the Characteristic Acoustic Impedance Using a Directional Coupler to Analyse Reference Reflections from Thin Layers</i>. 2007.","ama":"Vössing T, Rautenberg J, Schröder A, Henning B. Ultrasonic measurement of the characteristic acoustic impedance using a directional coupler to analyse reference reflections from thin layers. In: ; 2007.","bibtex":"@inproceedings{Vössing_Rautenberg_Schröder_Henning_2007, title={Ultrasonic measurement of the characteristic acoustic impedance using a directional coupler to analyse reference reflections from thin layers}, author={Vössing, Torsten and Rautenberg, Jens and Schröder, Andreas and Henning, Bernd}, year={2007} }"},"type":"conference","department":[{"_id":"49"}],"date_created":"2019-12-17T14:27:14Z"},{"user_id":"15911","_id":"15347","language":[{"iso":"eng"}],"page":"407-408","date_updated":"2022-01-06T06:52:21Z","conference":{"start_date":"21.03.2006","name":"32. Deutsche Jahrestagung für Akustik (DAGA 2006)","location":"Braunschweig","end_date":"23.03.2006"},"author":[{"full_name":"Kehl, Romina","last_name":"Kehl","first_name":"Romina"},{"full_name":"Rautenberg, Jens","first_name":"Jens","last_name":"Rautenberg"},{"id":"213","first_name":"Bernd","last_name":"Henning","full_name":"Henning, Bernd"}],"status":"public","title":"Schwingungsverhalten eines flüssigkeitsgefüllten Tanks","year":"2006","department":[{"_id":"49"}],"type":"conference","date_created":"2019-12-17T14:30:29Z","abstract":[{"text":"Um das Schwingungsverhalten eines mit Flüssigkeit\r\ngefüllten zylindrischen Stahltanks mit beliebiger Füllhöhe zu\r\nmodellieren, werden Ansätze aus der Schalentheorie genutzt.\r\nVerschiedene analytische Modelle und Vereinfachungen\r\nwerden gegenübergestellt und für den leeren sowie komplett\r\ngefüllten Zylinder gelöst. Zudem wird ein semianalytisches\r\nModell für den teilweise gefüllten Zylinder entworfen.\r\nSimulationsergebnisse aus FEM-Simulationen sowie\r\nErgebnisse aus Testmessungen werden den Modellwerten\r\ngegenübergestellt.","lang":"eng"}],"citation":{"apa":"Kehl, R., Rautenberg, J., &#38; Henning, B. (2006). Schwingungsverhalten eines flüssigkeitsgefüllten Tanks (pp. 407–408). Presented at the 32. Deutsche Jahrestagung für Akustik (DAGA 2006), Braunschweig.","ieee":"R. Kehl, J. Rautenberg, and B. Henning, “Schwingungsverhalten eines flüssigkeitsgefüllten Tanks,” presented at the 32. Deutsche Jahrestagung für Akustik (DAGA 2006), Braunschweig, 2006, pp. 407–408.","chicago":"Kehl, Romina, Jens Rautenberg, and Bernd Henning. “Schwingungsverhalten Eines Flüssigkeitsgefüllten Tanks,” 407–8, 2006.","short":"R. Kehl, J. Rautenberg, B. Henning, in: 2006, pp. 407–408.","mla":"Kehl, Romina, et al. <i>Schwingungsverhalten Eines Flüssigkeitsgefüllten Tanks</i>. 2006, pp. 407–08.","ama":"Kehl R, Rautenberg J, Henning B. Schwingungsverhalten eines flüssigkeitsgefüllten Tanks. In: ; 2006:407-408.","bibtex":"@inproceedings{Kehl_Rautenberg_Henning_2006, title={Schwingungsverhalten eines flüssigkeitsgefüllten Tanks}, author={Kehl, Romina and Rautenberg, Jens and Henning, Bernd}, year={2006}, pages={407–408} }"}},{"type":"conference","department":[{"_id":"49"}],"date_created":"2019-12-17T14:33:15Z","abstract":[{"text":"In spite of the outstanding importance of neuronavigational techniques the neurosurgeon has still highly to rely on his visual as well as tactile sense and his experience in distinguishing tumor tissue from intact brain parenchyma. All the more - as neuronavigation is based on preoperative imaging scans - considerable brain shift may occur during surgery and that will lead to erroneous results. Furthermore the surgeon loses his tactile sense during endoscopic surgery. Therefore control of tissue manipulation is limited today to the fiberoptic image techniques, possibly ensured by neuronavigational supervision or haptic feedback systems. In robotic guided surgery the missing tactile sensing will be particularly crucial. The human sense of touch is a highly complex sensory perception comprising epicritical and propiozeptive information processing. The development of a tool for intraoperative tactile perception will be a highly challenging task to improve the safety during surgery. Different sensor concepts (elasticity probe and resonant piezoelectric sensor) have been set up and adapted to distinguish elasticity differences in soft tissue mimicking gel phantoms. The elasticity probe is based on two leaf springs of different bending stiffness. The two tips of the beams act both on the material to be tested. The two deflections measured by strain gauges are processed in a mathematical model calculating the phantoms' stiffness. In contrast to this differential sensing concept the piezoelectric sensor, which is driven at its resonance, measures stiffness and damping of the phantoms by evaluating frequency or phase shift and amplitude change. Gelatine gels of different concentrations (5{\\%}, 10{\\%}, 20{\\%} of gelatine) have been used for a characterization of sensor elements and their sensitivity to elasticity distinctions. Using the hand-guided elasticity probe the determination of gel elasticity is performed with high reliability. By constant mechanical load the piezoelectric sensor also presents a proportional dependency of tissue elasticity.","lang":"eng"}],"citation":{"chicago":"Kehl, Romina, Ralf Stroop, David Oliva Uribe, Tobias Hemsel, and Bernd Henning. “Tactile Sensors for Determination of Elastic Properties of Brain Tissue Mimicking Phantoms,” 2006.","short":"R. Kehl, R. Stroop, D. Oliva Uribe, T. Hemsel, B. Henning, in: 2006.","apa":"Kehl, R., Stroop, R., Oliva Uribe, D., Hemsel, T., &#38; Henning, B. (2006). Tactile sensors for determination of elastic properties of brain tissue mimicking phantoms. Presented at the Jahrestagung der Deutschen Gesellschaft für Computer- und Roboterassistierte Chirurgie (CURAC 2006), Hannover.","ieee":"R. Kehl, R. Stroop, D. Oliva Uribe, T. Hemsel, and B. Henning, “Tactile sensors for determination of elastic properties of brain tissue mimicking phantoms,” presented at the Jahrestagung der Deutschen Gesellschaft für Computer- und Roboterassistierte Chirurgie (CURAC 2006), Hannover, 2006.","ama":"Kehl R, Stroop R, Oliva Uribe D, Hemsel T, Henning B. Tactile sensors for determination of elastic properties of brain tissue mimicking phantoms. In: ; 2006.","bibtex":"@inproceedings{Kehl_Stroop_Oliva Uribe_Hemsel_Henning_2006, title={Tactile sensors for determination of elastic properties of brain tissue mimicking phantoms}, author={Kehl, Romina and Stroop, Ralf and Oliva Uribe, David and Hemsel, Tobias and Henning, Bernd}, year={2006} }","mla":"Kehl, Romina, et al. <i>Tactile Sensors for Determination of Elastic Properties of Brain Tissue Mimicking Phantoms</i>. 2006."},"user_id":"15911","_id":"15348","language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:52:21Z","year":"2006","title":"Tactile sensors for determination of elastic properties of brain tissue mimicking phantoms","status":"public","author":[{"full_name":"Kehl, Romina","last_name":"Kehl","first_name":"Romina"},{"last_name":"Stroop","first_name":"Ralf","full_name":"Stroop, Ralf"},{"full_name":"Oliva Uribe, David","last_name":"Oliva Uribe","first_name":"David"},{"full_name":"Hemsel, Tobias","last_name":"Hemsel","first_name":"Tobias"},{"id":"213","full_name":"Henning, Bernd","first_name":"Bernd","last_name":"Henning"}],"conference":{"name":"Jahrestagung der Deutschen Gesellschaft für Computer- und Roboterassistierte Chirurgie (CURAC 2006)","start_date":"12.10.2006","location":"Hannover","end_date":"14.10.2006"}},{"user_id":"15911","language":[{"iso":"eng"}],"_id":"15349","page":"55-73","date_updated":"2022-01-06T06:52:21Z","conference":{"start_date":"05.10.2006","name":"XX. Messtechnisches Symposium 2006 (AHMT)","location":"Bayreuth","end_date":"07.10.2006"},"publication_identifier":{"isbn":["978-3-8322-5419-3"]},"author":[{"last_name":"Rautenberg","first_name":"Jens","full_name":"Rautenberg, Jens"},{"id":"213","first_name":"Bernd","last_name":"Henning","full_name":"Henning, Bernd"}],"status":"public","year":"2006","title":"Messung der akustischen Impedanz einer Flüssigkeit in einem akustischen Wellenleiter","department":[{"_id":"49"}],"type":"conference","date_created":"2019-12-17T14:34:33Z","abstract":[{"text":"Die kontinuierliche und zuverlässige Konzentrationsmessung in Flüssigkeiten\r\nob zur Dosierung oder Prozessverfolgung stellt auch heute noch eine große\r\nmesstechnische Herausforderung dar. Akustische Sensorsysteme sind für diese\r\nMessaufgabe insbesondere unter industriellen Einsatzbedingungen prädestiniert.\r\nEs gibt eine Vielzahl verschiedener sorgfältig entworfener Ultraschallsensoren,\r\ndie diese Aufgabe durch Bestimmung der Schallgeschwindigkeit und\r\nder akustischen Impedanz lösen. Sie basieren meist auf senkrechten Durchgängen\r\ndes Schalls durch Grenzschichten, was sie sehr empfindlich gegenüber Ablagerungen\r\nmacht.\r\nDieser Beitrag liefert einen neuen Ansatz, indem die gesamte Oberfläche des\r\nMessraumes als akustischer Wellenleiter gestaltet und genutzt wird. Es hat sich\r\ngezeigt, dass sich durch Ausnutzen verschiedener Simulationswerkzeuge die\r\nHauptkomponenten eines Empfangssignals berechnen lassen, die eindeutig den\r\nverschiedenen modalen Anteilen zugeordnet werden können. Damit ist es möglich,\r\nallein aus dem Empfangssignal eines herkömmlichen Ultraschallwandlers\r\nauf die modalen Anteilsfaktoren zu schließen. Mit Hilfe dieser Koeffizienten\r\nund eines Modells des akustischen Wellenleiters lässt sich ein Gleichungssystem\r\naufstellen, das den Zusammenhang zwischen Dissipation in der Flüssigkeit\r\nsowie der durch Wellenleitergeometrie und Impedanzverhältnisse bedingten\r\nSignaldämpfung und den Amplituden der modalen Anteilsfaktoren beschreibt.","lang":"eng"}],"citation":{"ama":"Rautenberg J, Henning B. Messung der akustischen Impedanz einer Flüssigkeit in einem akustischen Wellenleiter. In: ; 2006:55-73.","bibtex":"@inproceedings{Rautenberg_Henning_2006, title={Messung der akustischen Impedanz einer Flüssigkeit in einem akustischen Wellenleiter}, author={Rautenberg, Jens and Henning, Bernd}, year={2006}, pages={55–73} }","mla":"Rautenberg, Jens, and Bernd Henning. <i>Messung Der Akustischen Impedanz Einer Flüssigkeit in Einem Akustischen Wellenleiter</i>. 2006, pp. 55–73.","short":"J. Rautenberg, B. Henning, in: 2006, pp. 55–73.","chicago":"Rautenberg, Jens, and Bernd Henning. “Messung Der Akustischen Impedanz Einer Flüssigkeit in Einem Akustischen Wellenleiter,” 55–73, 2006.","apa":"Rautenberg, J., &#38; Henning, B. (2006). Messung der akustischen Impedanz einer Flüssigkeit in einem akustischen Wellenleiter (pp. 55–73). Presented at the XX. Messtechnisches Symposium 2006 (AHMT), Bayreuth.","ieee":"J. Rautenberg and B. Henning, “Messung der akustischen Impedanz einer Flüssigkeit in einem akustischen Wellenleiter,” presented at the XX. Messtechnisches Symposium 2006 (AHMT), Bayreuth, 2006, pp. 55–73."}},{"department":[{"_id":"49"}],"type":"conference","date_created":"2019-12-17T15:35:07Z","abstract":[{"text":"In many different ultrasound applications mirrors are often used to deflect ultrasonic waves. The dimensions of the mirror and the applied materials have an essential influence on the output signal characteristics and the obtained measuring quantities. The extension of mirror geometry is not necessarily associated with a higher reflection coefficient. This can be explained with the aid of coincidence condition. A second criterion aims at the avoidance of the mirror resonance. This two conditions lead to an optimal dimensioning of mirror geometry with given material properties and operation mode, as exemplified for a rectangular mirror.","lang":"eng"}],"citation":{"mla":"Unverzagt, Carsten, et al. “Optimization of Ultrasound Reflecting Mirrors.” <i>2006 IEEE International Ultrasonics Symposium</i>, 2006, pp. 1390–93.","bibtex":"@inproceedings{Unverzagt_Rautenberg_Kehl_Henning_2006, title={Optimization of ultrasound reflecting mirrors}, booktitle={2006 IEEE International Ultrasonics Symposium}, author={Unverzagt, Carsten and Rautenberg, Jens and Kehl, Romina and Henning, Bernd}, year={2006}, pages={1390–1393} }","ama":"Unverzagt C, Rautenberg J, Kehl R, Henning B. Optimization of ultrasound reflecting mirrors. In: <i>2006 IEEE International Ultrasonics Symposium</i>. ; 2006:1390-1393.","ieee":"C. Unverzagt, J. Rautenberg, R. Kehl, and B. Henning, “Optimization of ultrasound reflecting mirrors,” in <i>2006 IEEE International Ultrasonics Symposium</i>, 2006, pp. 1390–1393.","apa":"Unverzagt, C., Rautenberg, J., Kehl, R., &#38; Henning, B. (2006). Optimization of ultrasound reflecting mirrors. In <i>2006 IEEE International Ultrasonics Symposium</i> (pp. 1390–1393).","short":"C. Unverzagt, J. Rautenberg, R. Kehl, B. Henning, in: 2006 IEEE International Ultrasonics Symposium, 2006, pp. 1390–1393.","chicago":"Unverzagt, Carsten, Jens Rautenberg, Romina Kehl, and Bernd Henning. “Optimization of Ultrasound Reflecting Mirrors.” In <i>2006 IEEE International Ultrasonics Symposium</i>, 1390–93, 2006."},"publication":"2006 IEEE International Ultrasonics Symposium","user_id":"15911","_id":"15350","language":[{"iso":"eng"}],"page":"1390-1393","date_updated":"2022-01-06T06:52:21Z","author":[{"full_name":"Unverzagt, Carsten","first_name":"Carsten","last_name":"Unverzagt"},{"full_name":"Rautenberg, Jens","last_name":"Rautenberg","first_name":"Jens"},{"first_name":"Romina","last_name":"Kehl","full_name":"Kehl, Romina"},{"id":"213","first_name":"Bernd","last_name":"Henning","full_name":"Henning, Bernd"}],"title":"Optimization of ultrasound reflecting mirrors","status":"public","year":"2006"},{"abstract":[{"lang":"eng","text":"Today's automotive headlights are built with transparent cover lenses. Therefore condensation of water leads to a visible optical defect. This paper presents a new approach for determination of the droplet size using colour phenomena in totally reflected light. It is based on a model of the generation of colour patterns by interference of several rays of light each multiple totally reflected inside condensed droplets. The droplet size may be determined by the colour if the contact angle is known. Measurement of both droplet size and colour all"}],"citation":{"bibtex":"@inproceedings{Wetzlar_Henning_Nolte_Klahold_2006, title={Investigation of colour phenomena in condensed water droplets}, author={Wetzlar, Dietmar and Henning, Bernd and Nolte, Sascha and Klahold, Jens}, year={2006} }","ama":"Wetzlar D, Henning B, Nolte S, Klahold J. Investigation of colour phenomena in condensed water droplets. In: ; 2006.","mla":"Wetzlar, Dietmar, et al. <i>Investigation of Colour Phenomena in Condensed Water Droplets</i>. 2006.","chicago":"Wetzlar, Dietmar, Bernd Henning, Sascha Nolte, and Jens Klahold. “Investigation of Colour Phenomena in Condensed Water Droplets,” 2006.","short":"D. Wetzlar, B. Henning, S. Nolte, J. Klahold, in: 2006.","ieee":"D. Wetzlar, B. Henning, S. Nolte, and J. Klahold, “Investigation of colour phenomena in condensed water droplets,” presented at the  OPTO &#38; IRS<sup>2</sup> 2006 Conference, Nürenberg, 2006.","apa":"Wetzlar, D., Henning, B., Nolte, S., &#38; Klahold, J. (2006). Investigation of colour phenomena in condensed water droplets. Presented at the  OPTO &#38; IRS<sup>2</sup> 2006 Conference, Nürenberg."},"type":"conference","department":[{"_id":"49"}],"date_created":"2019-12-17T15:35:59Z","date_updated":"2022-01-06T06:52:21Z","year":"2006","status":"public","title":"Investigation of colour phenomena in condensed water droplets","publication_identifier":{"isbn":["978-3-9810993-0-0"]},"author":[{"full_name":"Wetzlar, Dietmar","first_name":"Dietmar","last_name":"Wetzlar"},{"first_name":"Bernd","last_name":"Henning","full_name":"Henning, Bernd","id":"213"},{"full_name":"Nolte, Sascha","last_name":"Nolte","first_name":"Sascha"},{"last_name":"Klahold","first_name":"Jens","full_name":"Klahold, Jens"}],"conference":{"end_date":"01.06.2006","location":"Nürenberg","start_date":"30.05.2006","name":" OPTO & IRS² 2006 Conference"},"user_id":"15911","language":[{"iso":"eng"}],"_id":"15351"},{"author":[{"id":"213","last_name":"Henning","first_name":"Bernd","full_name":"Henning, Bernd"},{"last_name":"Rautenberg","first_name":"Jens","full_name":"Rautenberg, Jens"}],"status":"public","title":"Process monitoring using ultrasonic sensor systems","year":"2006","date_updated":"2022-01-06T06:52:21Z","_id":"15357","language":[{"iso":"eng"}],"page":"e1395-e1399","user_id":"15911","citation":{"chicago":"Henning, Bernd, and Jens Rautenberg. “Process Monitoring Using Ultrasonic Sensor Systems.” <i>Ultrasonics</i>, no. 44 (2006): e1395–99.","short":"B. Henning, J. Rautenberg, Ultrasonics (2006) e1395–e1399.","apa":"Henning, B., &#38; Rautenberg, J. (2006). Process monitoring using ultrasonic sensor systems. <i>Ultrasonics</i>, (44), e1395–e1399.","ieee":"B. Henning and J. Rautenberg, “Process monitoring using ultrasonic sensor systems,” <i>Ultrasonics</i>, no. 44, pp. e1395–e1399, 2006.","ama":"Henning B, Rautenberg J. Process monitoring using ultrasonic sensor systems. <i>Ultrasonics</i>. 2006;(44):e1395-e1399.","bibtex":"@article{Henning_Rautenberg_2006, title={Process monitoring using ultrasonic sensor systems}, number={44}, journal={Ultrasonics}, author={Henning, Bernd and Rautenberg, Jens}, year={2006}, pages={e1395–e1399} }","mla":"Henning, Bernd, and Jens Rautenberg. “Process Monitoring Using Ultrasonic Sensor Systems.” <i>Ultrasonics</i>, no. 44, 2006, pp. e1395–99."},"publication":"Ultrasonics","issue":"44","date_created":"2019-12-17T15:44:52Z","department":[{"_id":"49"}],"type":"journal_article"}]