Tandem rotor turbine meter and field calibration module

Details Tandem rotor turbine meter and field calibration module Tandem rotor turbine meter and field calibration module

1993-09-22

1995-12-12

Chin, Stephen

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

73196, G01F 2500, G01F 700

Patent

active

054739322

ABSTRACT:
Methods and an apparatus for measuring gas flow with greater reliability than earlier single-rotor and double-rotor turbine meters and dual turbine meter systems are disclosed. The apparatus comprises two independent rotors, in close proximity of each other, housed in the same meter body, but isolated from the effects of each other. No pressure and temperature correction are needed for accuracy performance comparison between the two rotors. Because of the two rotor averaging technique, the reliability of the volume totalization is greatly improved over earlier double-rotor and single-rotor designs.

REFERENCES:
patent: 2859616 (1958-11-01), Fellows
patent: 3083570 (1963-04-01), Truman
patent: 3135116 (1964-06-01), Kwong et al.
patent: 3488996 (1970-04-01), Pfrehn
patent: 3710622 (1973-01-01), Hammond et al.
patent: 3934473 (1976-01-01), Griffo
patent: 3958447 (1976-05-01), Baker et al.
patent: 4067230 (1978-07-01), Ball
patent: 4305281 (1981-12-01), Lee et al.
patent: 4566307 (1986-01-01), Boykin
patent: 4694681 (1987-09-01), Hoffmann

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