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交流电流比较仪在四端钮阻抗测量中的应用
引用本文:曲正伟,赵伟,李正坤. 交流电流比较仪在四端钮阻抗测量中的应用[J]. 电测与仪表, 2009, 46(12)
作者姓名:曲正伟  赵伟  李正坤
作者单位:1. 清华大学电机系电力系统国家重点实验室,北京100084;燕山大学电气工程学院,河北秦皇岛,066004
2. 清华大学电机系电力系统国家重点实验室,北京,100084
3. 中国计量科学研究院,北京,100013
摘    要:
交流电流比较仪能提供精确的电流比例,本征地适合四端钮阻抗的测量.本文概述交流电流比较仪的发展状况及其基本原理,介绍交流电流比较仪电桥在四端钮阻抗测量中的应用,指出音频电流比较仪电桥将成为未来研究的主要方向,并重点讨论音频交流电流比较仪电桥在容性误差补偿、灵敏度以及比例校验等几方面的关键问题.

关 键 词:电流比较仪  四端钮阻抗  精密测量

Application of Alternating Current Comparator on Scaling Four-Terminal Impedances
QU Zheng-wei,ZHAO Wei,LI Zheng-kun. Application of Alternating Current Comparator on Scaling Four-Terminal Impedances[J]. Electrical Measurement & Instrumentation, 2009, 46(12)
Authors:QU Zheng-wei  ZHAO Wei  LI Zheng-kun
Affiliation:QU Zheng-wei1,2,ZHAO Wei1,LI Zheng-kun3 (1.State KeyLab ofPower System,Department ofElectrical Engineering,Tsinghua University,Beijing100084,China. 2.Institute of Electrical Engineering,Yanshan University,Qinhuangdao 066004,Hebei,China. 3.National Institute of Metrology,Beijing 100013,China)
Abstract:
Alternating Current Comparator (ACC) is very suitable for measuring four-terminal impendence for its accurate current ratio. The development and basic principle of ACC are presented and the application of ACC on scaling four-terminal impendence is summarized in detail. Then,this paper indicates that the ACC-bridge for audio frequency may be further researched. Some key problems of audio frequency ACC-bridge,such as compensation of the capacitance error,sensitivity,and calibration method for ratio,are mainly...
Keywords:current comparator  four-terminal impendence  precision measurement  
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