FREQUENCY_METER_

Published:2009/7/1 22:21:00 Author:May | From:SeekIC

High- precision frequency-to-voltage converter can be used as frequency meter in laboratory. Input frequency range up to 1 kHz is converted to corresponding full-scale voltage value of +5 V. Two-pole filter removes ripple from positive output pulses across R1 before signal is fed to 3130 opamp that provides gain and zero adjustments.-W. G. Jung,″IC Timer Cookbook,″Howard W .Sams,Indianaplis,IN,1977,p 192－186．



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