Abstract：In order to test the spacecraft microvibration performance under different conditions at low and ultralow frequency, a sixdimension
microvibration test system was designed with piezoelectric sensor as core. The software was designed to realize realtime acquisition analysis and sensor
signals processing in space with calibration, and the sixdimension force was obtained at last. The working principle and the dynamic calibration method of
test system were introduced, and the test system was also simulated and tested. The results show that the relative error of the first five natural
frequencies is within 5%, and the first order is more than 400 Hz. The test resolution of force and torque can respectively reach 0.1 N and 0.01 N·m with
SNR more than 10. The relative error of six components is within 7% in dynamic testing at the frequency range of 0 to 400 Hz.
夏明一, 秦超, 贺帅. 航天器6维微振动力测试系统的设计与试验[J]. 江苏大学学报（自然科学版）, 2017, 38(1): 56-61.
XIA Ming-Yi, QIN Chao, HE Shuai. Design and experiment of a sixdimension microvibration
force test system for spacecraft[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2017, 38(1): 56-61.
2017, Vol. 38 
