Direct current resistance comparison measurement method and measuring instrument
Title：
Direct current resistance comparison measurement method and measuring instrument
Application Number：
 200410009875
Application Date：
 2004/11/26
Announcement Date：
 2005/04/13
Pub. Date：
 2007/02/07
Publication Number：
 1605876
Announcement Number：
 1299119
Grant Date：
 2007-2-7
Granted Pub. Date：
 2007-2-7
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 G01R 27/14
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Zhu Henian, Tang Qiuhua, Chang Ying
Key Words：
 Direct current resistance, comparison measurement method, measuring instrument
Abstract：
 The invention provides a direct current resistance comparison measurement method and measuring instrument, wherein adjustable voltage stabilized source with super low quasi-state inherent resistance is employed to neglect the influence to measurement caused by ammeter equivalent input resistance, the linearity index of digital voltmeter, dial plate meter or corresponding functional units is superior to the indeterminacy index of the absolute voltage measurement, and a floatation proofing resistance is arranged paralleling the digital voltmeter to reduce the numeration table display fluctuation, thus realizing the accurate measurement for direct current resistance at a wide range.
Claim：
Priority：
PCT：
LegalStatus：

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