Method and apparatus for measuring fluid flow and/or for exercis

Details Method and apparatus for measuring fluid flow and/or for exercis Method and apparatus for measuring fluid flow and/or for exercis

1976-11-18

1978-04-11

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

G01F 168

Patent

active

040832449

ABSTRACT:
Apparatus for determining fluid flow, said apparatus comprising flow obstruction means and two heat-emitting members which are mounted in a geometrically symmetrical arrangement in a conduit, the heat-emitting members being subject to the same heat losses when there is no fluid flow through the conduit, the flow obstruction means causing the two heat-emitting members to be differentially affected by the fluid flow through the conduit, and means responsive to the ratio of the heat losses from the two heat-emitting members for determining the said fluid flow.

REFERENCES:
patent: 1156630 (1915-10-01), Savage
patent: 2412471 (1946-12-01), Olson
patent: 2431241 (1947-11-01), Godsey, Jr.
patent: 2458331 (1949-01-01), Borell
patent: 3147618 (1964-09-01), Benson
patent: 3559482 (1971-02-01), Baker et al.
patent: 3677085 (1972-07-01), Hayakawa
patent: 3777563 (1973-12-01), Yamasaki et al.
patent: 3915000 (1975-10-01), Tertilt

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