高阻计检定装置的研制  

Development of High Resistance Meter Verification Device

作　　者：周健 管锡良 ZHOU Jian;GUAN Xiliang

机构地区：[1]宜兴市计量检定测试所,江苏宜兴214214

出　　处：《计量与测试技术》2020年第11期18-19,22,共3页Metrology & Measurement Technique

摘　　要：研制高阻计检定用标准电阻模拟装置,用于高阻计检定校准。该高阻计检定装置通过测量输入电压,输出可控精准电流源的原理,模拟出高阻值电阻。缓冲补偿电路用于补偿被测设备零位,提高模拟精度。与实物电阻比较,模拟出的高阻值量程提高3个数量级,体积大幅度减少,精度明显提升,成本降低。研制出的高阻计检定装置,用于高阻计检定,比传统高阻电阻箱更方便。The purpose of this paper is tointroduce a standard resistance simulation device for high resistance meter calibration.The device simulate the high value resistance by the method that to measure the input voltage and output controllable accurate current souce.A buffer compensation circuit is used to compensate the zero position of the device under test to improve the simulation accuracy.Compared with the physical resistance,the simulated high resistance range is increased by three orders of magnitude,the size of the device is greatly reduced,the accuracy is significantly improved,and thecost is reduced.For the high resistance meter calibration,this device is more convenient than the traditional high resistance box.

关 键 词：高阻计 检定装置 模拟电阻 实物电阻 

分 类 号：TM934.1[电气工程—电力电子与电力传动]