用数字式电位差计校准电表实验设计研究  

Experimental design study of calibration meter with digital potential difference meter

作　　者：符时民[1] FU Shi - min(College of Mathematics and Physics, Bohai University, Jinzhou 121013, China)

机构地区：[1]渤海大学数理学院,辽宁锦州121013

出　　处：《渤海大学学报（自然科学版）》2016年第3期223-226,共4页Journal of Bohai University:Natural Science Edition

基　　金：国家自然科学基金项目(No:21203011)

摘　　要：阐述了箱式电位差计操作麻烦、费时及容易产生系统误差等原因．若改用数字式电位差计校表，就可以解决这些问题．UJ33 D型数字电位差计可数字直读发生和测量电压值；测量范围是0～2500．0 mV，准确度等级是0．01，最小分辨率是0．01 mV．说明用数字式电位差计校准电表的原理，对电阻R1、R2及Rs取值进行了研究，并对实验设计进行了分析研究．The operation trouble , time -consuming and system error of box -type potentiometer are ex-pounded.These problems can be solved if the digital potentiometer is used .UJ33D type digital potentiometer can occur and digital direct voltage measurements;Measurement range is 0-2500.0 mV, the accuracy level is 0.01, the minimum resolution is 0.01 mV.The principle of calibrating the electric meter with digital potentiometer ,The values of resistance R1 , R2 and Rs were studied, and the experimental design was analyzed .

关 键 词：数字式电位差计 箱式电位差计 实验设计研究 校准电压表 校准电流表 

分 类 号：TM938.49[电气工程—电力电子与电力传动]