Modeling and Enhancement of Piezoelectric Accelerometer Relative Sensitivity
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Université de M'sila
Abstract
The piezoelectric accelerometer is an electronic instrument based on the direct effect
of the piezoelectric material, this device is widely used in the industries to monitor
and detect defects of rotating machines in an early stage. In this paper, a thorough
study of the piezoelectric accelerometer is carried out to understand its design and
operation principle. A mathematical model of the accelerometer is developed based
on Newton motion law then a new relative sensitivity equation in function of measurement
error is extracted. This new equation has allowed a significant reduction in
the measurement error, a maximum improvement in the precision and an optimization
of the piezoelectric accelerometer relative sensitivity by the appropriate choice
of damping rate. These improvements have optimized the accelerometer parameters
and performances.
Description
Keywords
Model · Error · Measurement · Sensitivity · Accelerometer