用换臂法测电阻消除双桥的系统误差

辽宁石油化工大学学报 ›› 2007, Vol. 27 ›› Issue (4): 75-76.

用换臂法测电阻消除双桥的系统误差

符时民

渤海大学物理系, 辽宁锦州121013

收稿日期:2007-07-20 出版日期:2007-12-20 发布日期:2017-07-05
作者简介:符时民(1958 -), 男, 辽宁凌海市, 副教授。

Eliminating Systemat ic Errors of the Double -A rm Electric Bridge Through Measuring Resistance in the Way of Exchanging Arms of Bridge

Department o f Physics , Bohai University , Jinzhou Liaoning 121013 , P .R .China

Received:2007-07-20 Published:2007-12-20 Online:2017-07-05

摘要/Abstract

摘要： 讨论了双桥法测量电阻存在的系统误差, 简述了用双桥换臂法测量电阻不但消除了线触电阻r 对测量结果的影响, 而且还消除了由于电阻箱的系统误差对测量结果的影响, 大大提高测量的准确度。

关键词: 双臂电桥, 　系统误差, 　换臂测量, 　测量准确度

Abstract:

　The systematic errors of the double -a rm electric bridge w ere discussed by using the method of exchanging double-bridge arms.The method eliminates not only the influence of the resistancer on measurement results , but also the influence of the systematic errors of the resistance box on measurement results .Accuracy of measurement is greatly improved.

Key words: Double -arm elec tricbridge, , Systematic error, , Measurement of exchanging the arms of bridge, , Degree of accuracy of the measuremen

符时民. 用换臂法测电阻消除双桥的系统误差[J]. 辽宁石油化工大学学报, 2007, 27(4): 75-76.

FU Shi -min. Eliminating Systemat ic Errors of the Double -A rm Electric Bridge Through Measuring Resistance in the Way of Exchanging Arms of Bridge[J]. Journal of Liaoning Petrochemical University, 2007, 27(4): 75-76.