Non-contact sensor for vortex-type flowmeter

Details Non-contact sensor for vortex-type flowmeter Non-contact sensor for vortex-type flowmeter

1975-09-30

1977-02-01

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

System

G01F 132

Patent

active

040056040

ABSTRACT:
A non-contact sensor for a vortex-type flowmeter in which the fluid to be measured is conducted through a flow tube having an obstacle assembly mounted therein capable of generating fluidic oscillations causing a deflectable section of the assembly to vibrate at a corresponding rate. These vibrations are sensed to produce an output signal whose frequency is proportional to the flow rate of the fluid, the sensor being constituted by a magnetically-dependent member which is subjected to a changing magnetic field by a proximity element attached to the deflectable section and vibrating therewith to induce in the member electrical changes producing said output signal.

REFERENCES:
patent: 2809520 (1957-10-01), Richard, Jr.
patent: 2945379 (1960-07-01), Barnes et al.
patent: 3025461 (1962-03-01), Snellen
patent: 3060370 (1962-10-01), Varterasian
patent: 3116639 (1964-01-01), Bird
patent: 3683691 (1972-08-01), Kivenson
patent: 3698245 (1972-10-01), McNabb
patent: 3720104 (1973-03-01), Zanker

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