航天器环境工程2018，Vol.35Issue(2)：170-177,8.DOI:10.3969/j.issn.1673-1379.2018.02.012
用于微振动测量的高精度加速度传感器标定方法
Calibration of the high accuracy acceleration sensor used in micro-vibration test
摘要
Abstract
The micro-vibration acceleration sensor can measure as low an acceleration as 10-5g or even in a lower level, but its dynamic calibration of the acceleration in that level is a hard issue with the normal technology to garantee the accuracy and the precision of the measurement. To solve this prolem, this paper proposes a combined approach for calibration: first, set up a beam as the control object, and install the acceleration sensor on it; then use the laser vibrometer and the acceleration sensor for the measurement at the same point on the beam; finally, compare the measurement results to determine the accuracy of the acceleration sensors. We have also designed an experiment to calibrate a predefined acceleration sensor to show the effectiveness of this method. It is indicated that the laser vibrometer is a good instrument for calibration, and the comparison result for the predefined sensor is satisfatory; the almost same results are obtained in both ways not only in the time domain but also in the frequency domain, and their relative deviation is as low as about 10%, which satisfies the demand of the calibrating method.关键词
微振动/加速度传感器/激光测振仪/标定方法Key words
micro-vibration/acceleration sensor/laser vibrometer/calibration method分类
机械制造引用本文复制引用
马功泊,李栋,岳志勇,冯国松..用于微振动测量的高精度加速度传感器标定方法[J].航天器环境工程,2018,35(2):170-177,8.基金项目
国家自然科学基金项目"大型卫星智能化高效试验技术"(编号:30508010401) （编号:30508010401）
