Title :
Vector Voltmeter for High-Precision Unbalanced Comparator Bridge
Author :
Andrzej Met;Krzysztof Musiol;Tadeusz Skubis
Author_Institution :
Silesian Technical University, Gliwice, Poland
Abstract :
A new inductance comparator bridge has been constructed at the Institute of Measurements, Electronics, and Automatic Control (Gliwice, Poland) for the calibration of inductance standards in the frequency range of 100 Hz-10 kHz. Since the instrument belongs to the class of unbalanced transformer bridges, very accurate measurement of the voltage on the diagonal of the bridge is required. A vector voltmeter which enables the precise measurement of both components of the unbalance voltage is described in this paper. We report on the realization and characterization of the voltmeter which is an integral part of the new inductance comparator bridge.
Keywords :
"Voltmeters","Bridge circuits","Inductance measurement","Impedance measurement","Measurement standards","Instruments","Inductors","Electric variables measurement","Frequency measurement","Automatic frequency control"
Journal_Title :
IEEE Transactions on Instrumentation and Measurement
DOI :
10.1109/TIM.2010.2058555