Portable 4-Channel Electrochemical Noise Test System  

作　　者：李健 孔伟康 郑焕军 张力 毛雪伟 

机构地区：[1]State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University

出　　处：《Transactions of Tianjin University》2014年第2期144-150,共7页天津大学学报（英文版）

基　　金：Supported by the National Basic Research Program of China("973"Program,No.2011CB610505);National Natural Science Foundation of China(No.61240038)

摘　　要：A portable 4-channel electrochemical noise(EN) test system with high precision was developed.The modular instrument cRIO was used as its core and the signal conditioning module included zero resistance ammeter(ZRA),fly line,screening box and shielded wire.The EN data were acquired from two Q235 carbon steel specimens placed in 0.5 mol/L H2SO4 solution and 0.1 mol/L NaCl solution.The experimental result shows that this system can achieve an accuracy of 10 pA and 10 μV,and it can be applied to on-site multi-channel EN test.A portable 4-channel electrochemical noise（EN） test system with high precision was developed.The modular instrument cRIO was used as its core and the signal conditioning module included zero resistance ammeter（ZRA）,fly line,screening box and shielded wire.The EN data were acquired from two Q235 carbon steel specimens placed in 0.5 mol/L H2SO4 solution and 0.1 mol/L NaCl solution.The experimental result shows that this system can achieve an accuracy of 10 pA and 10 μV,and it can be applied to on-site multi-channel EN test.

关 键 词：corrosion monitoring electrochemical noise test 4-channel 

分 类 号：O646[理学—物理化学]