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[ pdf ] A Simple Circuit for Measuring Complex Impedance

A Simple Circuit for Measuring Complex Impedance Download
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Topic under  Impedance Measuring Devices
Source: www.kennethkuhn.com 
File size: 83.85 KB
File type: pdf
Last download on: Sat Jul 01, 2017 09:19:59 PM
Short Desciption:
A Simple Circuit for Measuring Complex Impedance 1 byKenneth A. Kuhn November8,2008, rev. Nov. 13,2008 Introduction This article shows a method that can be used to measure complex ...

Summary:
This article shows a method that can be used to measure complex impedance from audio frequencies to very high frequencies (VHF –if tight construction practices are followed and with appropriate diode detectors). All that is required is a known resistance and three AC voltage measurements –for audio frequencies this could be a standard hand-held DVM. The only disadvantage of this method is that only the phase magnitude and not the polarity can be measured. In many cases the phase polarity can be inferred from other known information.
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