A Simple, Reliable, and Highly Stable AC Voltage Amplifier for Calibration Purposes
- 3 October 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Instrumentation and Measurement
- Vol. 54 (5), 1964-1967
- https://doi.org/10.1109/tim.2005.853229
Abstract
The present commercially available ac amplifiers for testing and calibration purposes generally use electronic devices operating at high power levels. These amplifiers are rather prone to instabilities and usually produce a noticeable amount of heat, which must be vented to the ambient. The design of a simple and inexpensive precision ac voltage amplifier is presented, in which all internal electronic devices operate at low power and consequently produce less heat. The measured gain stabilities (amplitude and phase) of the amplifier were around /spl plusmn/1 /spl mu/V/V and /spl plusmn/1 /spl mu/rad, respectively, over 30 min.Keywords
This publication has 2 references indexed in Scilit:
- A new scheme for generating and measuring active, reactive, and apparent power at power frequencies with uncertainties of 2.5×10/sup -6/IEEE Transactions on Instrumentation and Measurement, 1999
- Electronic Error-Compensation of a Voltage TransformerIEEE Transactions on Instrumentation and Measurement, 1979