摘要
本文在对WAVE-Ⅲ和OPSElS 5520遥测地震数据采集站(ATU和RTU)的前置放大器进行对比分析的基础上,介绍了一种利用负反馈原理由集成运算放大器构成低噪声、高共模抑制比、高输入阻抗的前置放大器的设计,该放大器可用作ATU或RTU的前置放大。
Based on the comparative analysis made on the preamplifiers of WAVE-Ⅲ ATU and OPSEIS 5520 RTU,the paper presents to the readership the contrivance of low-noise, high-common-mode-rejection ratio and high-input impedance preamplifier built up with I. C. operational amplifier,by using the negative feedback concepts. The said amplifier is tailored to ATU or RTU's preamplification.
出处
《石油物探》
EI
CSCD
北大核心
1992年第1期93-97,共5页
Geophysical Prospecting For Petroleum
关键词
前置放大器
低噪声
仪器设计
Instrument Designing, Preamplifier, Low-Noise, High Common Mode Rejection Ratio, High Input Impedance
