Research on Output Characteristics of Piezoelectric Accelerometers for Low-Frequency Vibration

Abstract:

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Piezoelectric accelerometers are widely used for the measurement of middle- or high-frequency vibration. It is necessary to verify via experiments whether piezoelectric accelerometers can accurately measure low-frequency vibration. An experiment is designed to test the output characteristics of piezoelectric accelerometers for vibration of 1~5 Hz frequency, using a standard vibrator at low frequency (≤5Hz) and an accurately calibrated non-contact eddy current sensor as datum sensor. The experiment shows that the output characteristics of piezoelectric accelerometers are relatively stable when measuring vibration of 4~5Hz frequency. However, the output characteristics of accelerometers change with the frequencies and accelerations of vibration when the vibration frequencies are 1~3 Hz. It will affect the accuracy of vibration measurement.

Info:

Periodical:

Advanced Materials Research (Volumes 139-141)

Edited by:

Liangchi Zhang, Chunliang Zhang and Tielin Shi

Pages:

2460-2463

DOI:

10.4028/www.scientific.net/AMR.139-141.2460

Citation:

C. F. Zhu et al., "Research on Output Characteristics of Piezoelectric Accelerometers for Low-Frequency Vibration", Advanced Materials Research, Vols. 139-141, pp. 2460-2463, 2010

Online since:

October 2010

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Price:

$35.00

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