ACTUATOR 2016 Manuscript P 07


Author: Hubert Borgmann
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Pages: 4
Language: English
Publication date: 25/07/2016
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Manuscript P 07 published in Conference Proceedings ACTUATOR 2016
Resonance Frequency Tracking for Piezoelectric Devices

S. Safour, Y. Bernard
GeePs, UMR CNRS 8507, CentraleSupélec, Université Paris Sud, Université Paris-Saclay, Sorbonne
Universités, UPMC Université Paris 06, Gif-sur-Yvette, France

Abstract:
This paper presents experimental and numerical study of the effect of the environment on the frequency response of a piezoelectric device. The intent is to highlight the key elements to be taken into consideration when selecting or designing a resonance frequency tracking system. The studied specimen is a ring shaped PZT based material. Measurements in free vibration conditions using a frequency response analyser are done to investigate the effect of the applied voltage amplitude (DC and AC) and the material temperature on its frequency response. The material is then placed within a structure made of steel and polytetrafluoroethylene (PTFE) parts. Mechanical stress is applied using a compression machine to the structure, and its effect on the frequency response is measured. A finite element based model is introduced in order to explain the observed stress-effect. At the end a resonance frequency tracking system based on the zero phase angle control is discussed.
El vendedor asume toda la responsabilidad de esta entrada.
Hubert Borgmann, MESSE BREMEN,
Project Manager ACTUATOR, International Conference and Exhibition on New Actuators and Drive Systems, Bremen, Germany, and Editor of the ACTUATOR Conference Proceedings (www.actuator.de)
Project Manager ITHEC, International Conference and Exhibition on Thermoplastic Composites, Bremen, Germany, and Editor of the ITHEC Conference Proceedings (www.ithec.de)

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