This paper describes the realization of a two-terminal-pair digital impedance bridge and the test measurements performed with it. The bridge, with a very simple architecture, is based on a commercial two-channel digital signal synthesizer and a synchronous detector. The bridge can perform comparisons between the impedances having arbitrary phase and magnitude ratio. The bridge balance is achieved automatically in less than 1 min. R – C comparisons with calibrated standards, at kilohertz frequencies and 100- text{k}Omega magnitude level, give ratio errors of the order of 10^{-6} , with potential for further improvements.

Experiences With a Two-Terminal-Pair Digital Impedance Bridge / Callegaro, Luca; D'Elia, V; Kampik, M; Kim, D. B.; Ortolano, M; Pourdanesh, F.. - In: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT. - ISSN 0018-9456. - 64:6(2015), pp. 1460-1465. [10.1109/TIM.2015.2401192]

Experiences With a Two-Terminal-Pair Digital Impedance Bridge

CALLEGARO, LUCA;D'Elia V;
2015

Abstract

This paper describes the realization of a two-terminal-pair digital impedance bridge and the test measurements performed with it. The bridge, with a very simple architecture, is based on a commercial two-channel digital signal synthesizer and a synchronous detector. The bridge can perform comparisons between the impedances having arbitrary phase and magnitude ratio. The bridge balance is achieved automatically in less than 1 min. R – C comparisons with calibrated standards, at kilohertz frequencies and 100- text{k}Omega magnitude level, give ratio errors of the order of 10^{-6} , with potential for further improvements.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11696/32528
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