Improvement of the Relative Sensitivity for Obtaining a High Performance Piezoelectric Sensor

The purpose of a piezoelectric sensor is to measure the vibratory movements of structures by the direct effect of the piezoelectric material. In this paper, the operating principle of the piezoelectric sensor is defined in detail, and it is translated as a mathematical model (i.e., the modeling of t...

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Bibliographic Details
Published in:IEEE instrumentation & measurement magazine 2023-06, Vol.26 (4), p.49-56
Main Authors: Ghemari, Zine, Belkhiri, Salah, Saad, Salah
Format: Magazinearticle
Language:English
Subjects:
Accelerometers
Damping
Mathematical models
Measurement errors
Mechanical properties
Parameters
Piezoelectric materials
Piezoelectricity
Resonant frequencies
Resonant frequency
Sensitivity
Vibration measurement
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Summary:The purpose of a piezoelectric sensor is to measure the vibratory movements of structures by the direct effect of the piezoelectric material. In this paper, the operating principle of the piezoelectric sensor is defined in detail, and it is translated as a mathematical model (i.e., the modeling of this type of sensors). This developed model relates the accelerometer electrical parameters with their mechanical parameters, and simulation of this model allows the appropriate sensor damping rate to be chosen which minimizes error and improves accuracy and sensitivity. The proposal of a new relation links the relative frequency with the piezoelectric sensor natural frequency that makes it possible to minimize the resonance phenomenon effect, to facilitate the suitable choice of the sensor and to protect it.
ISSN:1094-6969
1941-0123
DOI:10.1109/MIM.2023.10146563