Flow quantity measuring apparatus

Details Flow quantity measuring apparatus Flow quantity measuring apparatus

1982-09-24

1985-08-06

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Measuring or testing

377 47, 7386177, G01P 500

Patent

active

045340463

ABSTRACT:
In flow quantity measuring apparatus of the type comprising a detection circuit which produces a pulse signal corresponding to flow speed of fluid to be measured, a converter which converts the pulse signal into an electric signal corresponding to a flow quantity of the fluid and a counter counting the number of the electric signals, the converter is constituted by a rate multiplier inputted with the signal for producing an output signal corresponding to a predetermined preset value, a register for storing the preset value, and a state change detection circuit for detecting change of a state of the register.

REFERENCES:
patent: 3935538 (1976-01-01), Kizler et al.
patent: 3965341 (1976-06-01), Honey et al.
patent: 4127091 (1978-11-01), Leichle
patent: 4229795 (1980-10-01), Vieweg
patent: 4241408 (1980-12-01), Gross
patent: 4306457 (1981-12-01), Fukui et al.

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