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Poster De Conférence Année : 2016

Resonance Frequency Tracking for Piezoelectric Devices

Résumé

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 putted 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.
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Dates et versions

hal-01338080 , version 1 (27-06-2016)

Identifiants

  • HAL Id : hal-01338080 , version 1

Citer

Safour Salaheddine. Resonance Frequency Tracking for Piezoelectric Devices. Actuator16, Jun 2016, Bremen, Germany. , Actuator16, 2016. ⟨hal-01338080⟩
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