Valve provided with a measuring instrument and intended for a mo

Details Valve provided with a measuring instrument and intended for a mo Valve provided with a measuring instrument and intended for a mo

1980-09-29

1982-07-06

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

System

7386177, 73198, G01F 1115, G01K 1700

Patent

active

043376550

ABSTRACT:
A valve unit for a flowing medium is combined with an electrical measuring system to provide measurement of the rate of flow of the medium. The valve unit is connected to a propeller-type rotor disposed in a conduit which communicates with the valve. The rotor incorporates a permanent magnet in at least one vane thereof and the measuring system includes a magnetic pulse generator which senses the magnetic field produced by the magnet and generates a corresponding train of pulses during the rotation of the rotor. An amplifier-differentiator connected to the pulse generator produces an output in accordance with the derivative of the pulses so as to provide an indication of the rate of flow.

REFERENCES:
patent: 1152952 (1915-09-01), Kepa
patent: 3452593 (1969-07-01), Lauter, Jr.
patent: 3617713 (1971-11-01), Karlson
patent: 3636767 (1972-01-01), Duffy
patent: 3729996 (1973-05-01), Metz
patent: 3795144 (1974-03-01), Marchesi
patent: 4048852 (1977-09-01), Sanakibara et al.
patent: 4250747 (1981-02-01), Diprose et al.

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