Measuring and testing – Volume or rate of flow – Expansible chamber
Patent
1978-01-12
1979-11-13
Gill, James J.
Measuring and testing
Volume or rate of flow
Expansible chamber
364497, 364510, G01F 190
Patent
active
041738918
ABSTRACT:
There is disclosed a gas flow measuring and calculating system including a transducer for measuring line or flow pressure of the gas flowing through a conduit, a transducer for measuring the line or flow temperature of the aforementioned gas, a turbometer for measuring the gas flow through the conduit, and calculation means in the form of a microprocessor for repetitively calculating with high accuracy the base gas flow in terms of standard cubic feet, wherein the supercompressibility factor is computed based upon values of measured gas temperature and pressure for specific entered values of specific gravity and of the gas compaction, and there are a plurality of computing steps for each calculation of the base gas flow. During each computing step, an initially approximated value of this supercompressibility factor or the previously-calculated value is used to calculate and display continuously an indication of the base gas flow, it being understood that each computer step is insufficient to recalculate the supercompressibility factor, this calculation taking a plurality of steps.
REFERENCES:
patent: 3537312 (1970-11-01), Moore
patent: 3701280 (1972-10-01), Stroman
patent: 3752393 (1973-08-01), Moseley
Gable R. Lewis
Gill James J.
Marriott Albert G.
Rockwell International Corporation
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