FLOWMETER_FREQUENCY_CONVERTER

Published:2009/7/14 22:01:00 Author:Jessie | From:SeekIC

Provides output signal that is directly provides output signal that is directly proportional to frequency of input from ,turbine flow-sensing element, for driving associated electronic potentiometer. V1 and V2 form three-stage limiting amplifier. Capacitor tachometer circuit uses chopper K1 to discharge C5 repetitively through adjustable-range resistor. Adjustable precision resistor in series with slide-wire of potentiometer provides accurate manual compensation for changes in specific gravity of measured medium. Circuit is Potter model 11-B frequency converter.-G. C. Carrol, Industrial Instrument Servicing Handbook, McGraw-Hill, N.Y., 1960, p 3-3.



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