6线制测量与已埋差动电阻式仪器鉴定  

Six-wires Measurement and Appraisal of the Embedded Differential Resistor Sensor

作　　者：邓检华[1] 王志远[1] 

机构地区：[1]国网南京自动化研究院/南京南瑞集团公司,江苏省南京市210003

出　　处：《水电自动化与大坝监测》2007年第6期50-53,78,共5页HYDROPOWER AUTOMATION AND DAM MONITORING

摘　　要：结合常规测量误差的来源分析,介绍了一种能有效减少误差影响、采用恒流源并结合内部多路开关进行数字采样的6线制电阻比测量方法;按不同接线仪器分别提出了不同的鉴定项目;参考规范要求,提出了具体的质量控制标准,可供大坝安全监测人员参考。This paper introduces a resistor-ratio measuring method, which can decrease the measurement error by using constant current circuit and multiplex switches combined 6-wires. According to the type of sensors, different appraisal items are proposed. Based on the criterion, a material quality-control standard is proposed for dam monitoring technicians＇ reference.

关 键 词：大坝监测 仪器鉴定 6线制测量 芯线阻值偏增 绝缘度 

分 类 号：TV698.1[水利工程—水利水电工程]