Measurement of exciting pulse for calibration of high-g accelerometer using lateral laser interferometer

被引：0
|
作者：
Fan, Jinbiao [1 ,2 ,3 ]
Li, Xi [1 ,2 ]
Xu, Peng [1 ,2 ,4 ]
Zu, Jing [1 ,2 ]
机构：
[1] Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan,030051, China
[2] Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan,030051, China
[3] College of Computer and Control Engineering, North University of China, Taiyuan,030051, China
[4] School of Science, North University of China, Taiyuan,030051, China
来源：
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2015年 / 44卷 / 02期
关键词：
Calibration;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
To accurately measure the amplitude and duration of exciting pulse for calibration of a high-g accelerometer, the measurement method of the exciting pulse was studied in this paper. Based on the analysis of the principle of Laser Doppler, a grating laser velocimeter was designed. A local mean decomposition algorithm based on polynomial fitting and Hilbert transform was put forward to process the Doppler signal with zero shift. The acceleration pulse was calculated using the above algorithm and the uncertainties of measurement of the amplitude and duration were analyzed and calculated. The expanded uncertainties verified by experiments are 3% for the amplitude and 4.8% for the duration with a coverage factor k =2. This method is effective for pulse measurement and the measurement precision met the requirements of ISO16063-13(2001). ©, 2015, Chinese Society of Astronautics. All right reserved.
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页码：497 / 502
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