Impedance Measuring Device Based on an AC Potentiometer
- 1 June 1985
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Instrumentation and Measurement
- Vol. IM-34 (2) , 341-344
- https://doi.org/10.1109/tim.1985.4315341
Abstract
This paper describes a novel ac potentiometer composed of digital sinewave generators and inductive voltage dividers (IVD's) for the comparison of unlike impedances with different nominal values from a few 10 Q up to 1 kΩ in the frequency range between 50 Hz and 1 kHz. As an example, the resistance of a 100-Ω standard resistor may be compared with the capacitance of a 1-μF standard capacitor at a frequency of 400 Hz with a relative uncertainty of about 1 X 10-6 which is mainly due to the short-term stability of the digital sources.Keywords
This publication has 1 reference indexed in Scilit:
- Comparison of Admittances by Means of a Digital Double-Sinewave GeneratorIEEE Transactions on Instrumentation and Measurement, 1980