Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1997-09-09
1999-11-23
Patel, Harshad
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
73196, 7386179, G01F 2500, G01F 700
Patent
active
RE0364010
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.
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Rockwell International, Auto-Adjust Turboo-Meters for Accurate Gas Measurement, Apr. 1988.
Fitzpatrick James J.
Peace Daniel W.
M & FC Holding Company, Inc.
Patel Harshad
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