Original scientific paper

https://doi.org/10.17559/TV-20150324061210

Low-frequency compensation of piezoelectric micro-vibrations test platform

Jiangpan Chen orcid.org/0000-0001-8003-5833 ; School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Xueyuan Road No. 37, Haidian District, Beijing 100191, China
Wei Cheng ; School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Xueyuan Road No. 37, Haidian District, Beijing 100191, China

Abstract

PMTP (piezoelectric micro-vibrations test platform) is widely used to test the micro-vibrations emitted by the rotary equipment on a spacecraft. Due to the poor performance of the piezoelectric sensor in low frequency band, the test reliability of PMTP is low. A low-frequency compensation method is proposed to solve this problem. Firstly, the low-frequency compensation method of a single-axis piezoelectric force sensor is introduced and verified by experimental test. Secondly, the low-frequency compensation method of PMTP, which consists of eight single-axis piezoelectric force sensors, is proposed. Lastly, the low-frequency compensation method of PMTP is verified by experimental test. The results show that this method can effectively compensate the performance of PMTP in low frequency band

Keywords

low-frequency compensation; micro-vibrations; piezoelectric force sensor; piezoelectric micro-vibrations test platform

Hrčak ID:

167470

URI

https://hrcak.srce.hr/167470

Publication date:

13.10.2016.

Article data in other languages: croatian

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