Method and apparatus for measuring fluid flow

Details Method and apparatus for measuring fluid flow Method and apparatus for measuring fluid flow

1988-08-05

1990-03-06

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

G01F 168

Patent

active

049055143

ABSTRACT:
A method and apparatus for the measurement of fluid flow through a conduit comprises determining, from one or more measuring elements, a first value related to the velocity of fluid flowing through the conduit. A second value, related to the temperature of fluid ambient to the conduit, is also determined. The method further includes establishing a third value related to the physical configuration of the measuring means. The first, second and third values are then used to calculate a power dissipation factor of the measuring means to be used in calculating a velocity indication which substantially eliminates errors due to changes in ambient temperature and caused by velocity cooling within the conduit.

REFERENCES:
patent: 3220255 (1965-11-01), Scranton et al.
patent: 3800592 (1974-04-01), Jones et al.
patent: 3891391 (1975-06-01), Boone
patent: 4043196 (1977-08-01), Trageser
patent: 4070908 (1978-01-01), Newell
patent: 4264961 (1981-04-01), Nishimura et al.
Datametrics Bulletin 600, Published 1952, p. 21 and FIGS. 1-3.
Ali, "Hot-Wire Anemometry in Moderately Heated Flow", in Rev. Sci. Instruments, vol. 46, #2, 2/75.

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