A Modified Wheatstone Bridge for High-Precision Automated Resistance Measurement

A modified Wheatstone bridge has been developed which auto-balances using a digitally controlled feedback system. The bridge has four detectors to sense the imbalance in the circuit, and a resolution of better than 0.01 ppm with nearly maintenance-free operation.

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 26; no. 12; pp. L1947 - L1949
Main Authors SASAKI, H, NISHINAKA, H, SHIDA, K
Format Journal Article
LanguageEnglish
Published Tokyo Japanese journal of applied physics 01.12.1987
Subjects
Applied sciences
Electronics
Exact sciences and technology
Testing, measurement, noise and reliability
Digital system
Feedback system
Measuring bridge
Resistance bridge
High precision
Matrix calculus
Wheatstone bridge
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Summary:A modified Wheatstone bridge has been developed which auto-balances using a digitally controlled feedback system. The bridge has four detectors to sense the imbalance in the circuit, and a resolution of better than 0.01 ppm with nearly maintenance-free operation.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.26.L1947