500_MEGOHM_LINEAR_SCALE_OHMMETER

Published:2009/7/20 19:59:00 Author:Jessie | From:SeekIC

Resistance multiplier using 741 opamp reduces current drain when measuring low resistance values(below 10 ohms), LEDs indicate voltage difference between outputs of A1 and A2. as guide for minimizing difference during measurement. RS sets meter for full-scale deflection when measuring resistor value equal to standard RC.-E.H. Armanino, Extending the Range of the Linear-Scale Ohmmeter,Electronics.Dec.22.1977,p93-94.



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