Karman vortex flowmeter

Details Karman vortex flowmeter Karman vortex flowmeter

1975-07-15

1976-09-14

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

System

G01F 132

Patent

active

039799549

ABSTRACT:
A Karman vortex flowmeter in which the fluid to be metered is conducted through a flow tube having a relatively large diameter. A multiplicity of rod-like units are arranged in parallel relation across the tube to define an obstacle array. Each unit acts as a vortex shedder and is constituted by rod sections which are coupled together axially by flow-detecting probes. Each probe in the array is so located as to avoid mutual interaction with the other probes. The electrical signals derived from the probes are so weighted and averaged as to obtain an output giving the mean flow rate. Even when the flowmeter is installed in a flow line containing elbows and other profile-disturbing elements, precise flow measurement can be accomplished.

REFERENCES:
patent: 2552017 (1951-05-01), Schwartz et al.
patent: 3564912 (1971-02-01), Malone et al.
patent: 3581565 (1971-06-01), Dieterich
patent: 3685355 (1972-08-01), DeBaum
patent: 3719080 (1973-03-01), Burgess
patent: 3775673 (1973-11-01), Watanabe

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