Tehnički vjesnik, Vol. 23 No. 5, 2016.
Izvorni znanstveni članak
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
Sažetak
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
Ključne riječi
low-frequency compensation; micro-vibrations; piezoelectric force sensor; piezoelectric micro-vibrations test platform
Hrčak ID:
167470
URI
Datum izdavanja:
13.10.2016.
Posjeta: 2.364 *