带线性隔离的微弱信号调理电路设计及应用  

Design and Application of Weak Signal Conditioning Circuit with Linear Isolation

作　　者：张敏 南林 卫莹 

机构地区：[1]航天动力测控技术研究所,陕西西安710025

出　　处：《工业控制计算机》2016年第10期131-132,共2页Industrial Control Computer

摘　　要：微弱信号调理技术是测控领域的重要技术之一。采用模块化的思想,设计了一种带线性隔离的微弱信号调理电路,包括电源模块、放大模块、隔离模块和滤波模块等,对于提高数据采集系统的精度和保护采集设备具有实际应用价值。此外,还可以为外部传感器提供激励源信号。Weak signal conditioning is one of the most important technology in the field of measurement and control.Based on modular thinking,this paper designs a weak signal conditioning circuit with linear isolation.The circuit consists of power supply part,amplifier part,isolation part and filtering part.It has a practical value to improve the accuracy of the data acquisition system and protect the equipment.In addition.It can also provide external excitation source signal to the external sensor.

关 键 词：信号调理 线性隔离 电路设计 

分 类 号：TN911.7[电子电信—通信与信息系统] TN702[电子电信—信息与通信工程]