Determination of Damage to the Piezoelectric Sensor by Measuring the Electrical Capacitance

Witold Rządkowski; Paweł Pyrzanowski

doi:10.4028/www.scientific.net/SSP.240.31

Paper Titles

Visualization of Processes of Plastic Deformation Initiation in Conditions of Pure Tension and Pure and Simple Bending
p.3

Testing Mechanical and Electrical Defects in Piezoceramic Materials Resulting from Ultrasonic Vibrations
p.11

Experimental-Numerical Study of Manufacture Induced 3D Rail Residual Stress
p.17

Research on the Surface Deformability of Reinforced Concrete Beams with the Use of Digital Image Correlation Method
p.25

Determination of Damage to the Piezoelectric Sensor by Measuring the Electrical Capacitance
p.31

Experimental Verification of Defect’s Influence on Beams’ Dynamics Using Laser Scanning Vibrometry
p.36

Application of 3-D Laser Scanning Vibrometer in Determination of Free Vibration Frequencies of Composite Plates with Damage
p.42

Introduction to Applications of the Raman Spectroscopy to Experimental Mechanics
p.49

Analysis of the Crack Propagation Process in Concrete Beams Reinforced with BFRP Bars Using Digital Image Correlation Method
p.55

HomeSolid State PhenomenaSolid State Phenomena Vol. 240Determination of Damage to the Piezoelectric...

Determination of Damage to the Piezoelectric Sensor by Measuring the Electrical Capacitance

Abstract:

This work presents testing mechanical defects of MFC piezoelectric transducers. The issue is important when piezoelectric transducer is used as eg. strain sensor. Repeatability of measurements is a goal, which can be obtained only if transducer has the same physical properties in every measurement. One way to determine damaged part of the sensor is measuring capacitance of MFC transducer. A couple of tests were performed to determine capacitance under non-destroying cyclic loading, and with loads causing PZT failure. Relation of capacity and load level was also investigated. All tests were validated with results from traditional resistive strain gauge

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26th Symposium on Experimental Mechanics of Solids

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Periodical:

Solid State Phenomena (Volume 240)

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31-35

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.240.31

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Online since:

August 2015

Authors:

Witold Rządkowski*, Paweł Pyrzanowski

Keywords:

Damage Determination, Electric Capacitance, Piezoelectric

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