接地导通电阻测试仪的智能化设计  

Intelligent Design of Earth-Continuity Testers

作　　者：黄晓英[1] 曹作群 

机构地区：[1]湖北省电力公司电力科学研究院,武汉430077 [2]武汉佳信现代仪器有限公司,武汉430062

出　　处：《湖北电力》2013年第2期69-70,共2页Hubei Electric Power

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.

关 键 词：接地 导通电阻 测试仪 智能化 

分 类 号：TB9[一般工业技术—计量学]