电阻比指示仪测试方法的研究  

Research on Test Method of Resistance Ratio Indicator

作　　者：张健 ZHANG Jian

机构地区：[1]南京市计量监督检测院,江苏南京210049

出　　处：《计量与测试技术》2021年第7期63-64,共2页Metrology & Measurement Technique

摘　　要：电阻比指示仪应用于岩石工程、隧道变位的监测,通过测量差阻式钢筋计的电阻比变化计算出钢筋应力的变化量。目前国家尚无校准规范,通过论述电阻比指示仪的原理,提出采用标准电阻器法校准电阻比指示仪,满足溯源要求。The resistance ratio indicator is applied to the monitoring of rock engineering and tunnel displacement,and the change of reinforcement stress is calculated by measuring the resistance ratio change of reinforcement meter.At present,there is no calibration standard in our country.By discussing the principle of the resistance ratio indicator,this paper proposes to use the standard resistor method to calibrate the resistance ratio indicator to meet the traceability requirements.

关 键 词：电阻比指示仪 钢筋计 标准电阻器法 

分 类 号：TM934.1[电气工程—电力电子与电力传动]