A New Design of Charge Amplifier in Ultra-High Impact Data Acquisition System

摘要：

At present, charge accelerometer has been used widely in impact and overloading measuring. And in data acquisition system we use charge amplifier to transfer charge signal to voltage signal. However, zero shift always appear in common charge amplify circuit. It will drop down the accuracy of data acquisition system. Even worse, in ultra-high impact condition the signal has been changed so enormously that the signal we get is not like the output of charge accelerometer a little. Based on this , we make some improvement with common amplify circuit in this article to solve this problem .The improved circuit can restrain zero shift very well .It will not change the characteristic of the signal at the same time.

关键词： charge amplify circuit zero shift accelerometer ultra-high impact

作者: Lin Yijie Wen Feng Zhai Chengrui

作者单位: Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education National Key Laboratory for Electronic Measurement Technology Department of Electronic Science and technology, North university of China, Ta

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）