Archivio Istituzionale della RicercaThis summary describes the realization and preliminary tests of a two terminal-pair digital impedance bridge. 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 impedances having arbitrary phase and magnitude ratio: its balance is achieved automatically in less than a minute. R-C comparisons with calibrated standard, at kHz frequency and 100 kΩ magnitude level, give ratio errors of the order of 10−5, with potential for further improvements.
Experiences with a two terminal-pair digital impedance bridge / Callegaro, Luca; Vincenzo, D'Elia; M., Kampik; Dan Bee, Kim; Ortolano, Massimo; Pourdanesh, Faranak; Ngoc Thanh Mai, Tran. - STAMPA. - (2014), pp. 222-223. (Intervento presentato al convegno Conference on Precision Electromagnetic Measurements tenutosi a Rio de Janeiro).
Experiences with a two terminal-pair digital impedance bridge
ORTOLANO, Massimo;POURDANESH, FARANAK;
2014
Abstract
This summary describes the realization and preliminary tests of a two terminal-pair digital impedance bridge. 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 impedances having arbitrary phase and magnitude ratio: its balance is achieved automatically in less than a minute. R-C comparisons with calibrated standard, at kHz frequency and 100 kΩ magnitude level, give ratio errors of the order of 10−5, with potential for further improvements.
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https://hdl.handle.net/11583/2561765
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