科技视界
科技視界
과기시계
Science&Technology Vision
2015年
30期
172,168
,共2页
惠斯登电桥%检流计%灵敏度%电动势
惠斯登電橋%檢流計%靈敏度%電動勢
혜사등전교%검류계%령민도%전동세
Wheatstone bridge%Galvanometer%Sensitivity%Electromotive force
分析了惠斯登电桥测量电阻的灵敏度问题,推导出电桥灵敏度与电源电压、检流计灵敏度、总阻值和比例臂电阻有关. 并针对传统的惠斯登电桥测电阻实验装置存在的不足,研制出了立体式电桥实验仪,实验结果表明能够有效提高测量精度.
分析瞭惠斯登電橋測量電阻的靈敏度問題,推導齣電橋靈敏度與電源電壓、檢流計靈敏度、總阻值和比例臂電阻有關. 併針對傳統的惠斯登電橋測電阻實驗裝置存在的不足,研製齣瞭立體式電橋實驗儀,實驗結果錶明能夠有效提高測量精度.
분석료혜사등전교측량전조적령민도문제,추도출전교령민도여전원전압、검류계령민도、총조치화비례비전조유관. 병침대전통적혜사등전교측전조실험장치존재적불족,연제출료입체식전교실험의,실험결과표명능구유효제고측량정도.
By exploring the sensitivity of Wheatstone bridge, it is related to the supply voltage,the galvanometer, the total resistance value and the resistance value of ratio arm. In order to avoid the deficiency of traditional Wheatstone bridge in the measurement of resistance, a new Stereo electric bridge experimental instrument is developed. It is shoving that the accuracy of measurement could be improved.
