两线制IEPE传感器前置信号调理电路  

Two-wire IEPE Accelerometer Front Signal Conditioning Circuit

作　　者：曹恒[1] 秦颖颀[1] 王春[1] 姚海庆[1] 吴键波[1] 

机构地区：[1]华东理工大学机械与动力工程学院,上海200237

出　　处：《仪表技术与传感器》2012年第11期160-162,共3页Instrument Technique and Sensor

基　　金：教育部博士点基金(20100074110005);教育部科研专项经费资助计划(20108824)

摘　　要：设计了一种信号调理电路,用于外骨骼机器人和工业炉窑监测现场微弱信号的放大。该电路将IEPE(压电集成电路)加速度传感器采集的设备振动信号,在A/D转换前进行交流同相放大和滤波等处理。经工业现场中实际应用验证,该电路信号失真度小、信噪比高、抗干扰能力强,可以满足干扰环境下微弱振动信号的调理需求,具有重要应用价值。A signal conditioning circuit was designed to achieve the amplification of weak signal for exoskeleton and industrial furnaces.The signal conditioning circuit processed the original signal of IEPE accelerometer before A/D conversion,which included AC non-inverting amplifier and filter.Experiments in industrial environment show the ability of meeting the conditioning needs of weak signal,with the characteristics of small signal distortion,high signal to noise ratio and high anti-interference ability under disturbances.

关 键 词：两线制 IEPE传感器 信号调理 状态监测 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]