Low Noise Chopper Amplifier Calibration Module

被引：0
|
作者：
Wang, Si [1 ]
Xiong, Linsen [1 ]
Wu, Haonan [1 ]
Wang, Weiwei [1 ]
Niu, Yuefeng [1 ]
Chen, Kai [1 ]
机构：
[1] China Univ Geosci, Minist Educ, Key Lab Geodetect, Beijing, Peoples R China
来源：
PROCEEDINGS OF 2016 IEEE ADVANCED INFORMATION MANAGEMENT, COMMUNICATES, ELECTRONIC AND AUTOMATION CONTROL CONFERENCE (IMCEC 2016) | 2016年
关键词：
low noise chopper amplifier; calibration; Marine CSEM Acquisition Station;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Marine CSEM (controlled source electromagnetic method) Acquisition Station needs to accurate observe two magnetic field components (Hx, Hy) and three electric field components (Ex, Ey, Ez). In this paper, a series of calibrations are made for the low noise chopper amplifier, which is used in the electric field signal acquisition hardware circuit. The calibration signal generation and the calibration curve calculation process are analyzed in detail. Through the calibration test, the results show that the calibration method is quick and effective. Besides, the amplifier can precisely determine its bandwidth, and verify low noise characteristics.
引用
收藏
页码：867 / 870
页数：4
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