摘要
目前国内在用的数字式、模拟式接地导通电阻测试仪均为伏安法原理,针对其在使用和检定中存在的测量误差大、分辨力低、读数超时和漂移、无超值报警或超值报警误差大等问题,按照接地导通电阻测量校准和接地导通电阻测试仪的国家标准、检定规程的规定,通过采用基于89C58CPU和电位比比较法,对接地导通电阻测试仪进行智能化设计,提高了接地导通电阻测量的准确度和可靠性。
At present both digital and analog Earth-continuity tester used at home is the principle of voltammetry.Such problems are existed in its use and verification as large measurement error,low resolution,reading timeout and drift,no or large error super value alarm,etc.According to the requirements of Earth-continuity measurement calibration,and Earth-continuity tester national standard and verification regulation,by using the comparison method based on 89C58CPU and potential proportion,this paper puts forward a new kind of intelligent design for Earth-continuity testers,which could improve the accuracy and reliability of Earth-continuity measurement.
出处
《湖北电力》
2013年第2期69-70,共2页
Hubei Electric Power
关键词
接地
导通电阻
测试仪
智能化
grounding
resistance
tester
intelligent.
