Apparatus for correcting measured gas flow

Details Apparatus for correcting measured gas flow Apparatus for correcting measured gas flow

1981-03-06

1983-06-28

Chin, Gary

Boots, shoes, and leggings

364571, 377 21, 7386103, G01F 100

Patent

active

043909566

ABSTRACT:
A gas flow volume corrector mounted on a flow meter is provided with a microprocessor which calculates a corrected volume each time the meter measures a unit volume of flowing gas. Customer supplied data as to base conditions, specific gravity and gas composition are utilized to calculate supercompressibility values. These values are then processed to provide a plurality of constants which define calculation equations. The constants are stored in the corrector on a diode matrix card or PROM and are utilized each time the meter measures a unit volume of flowing gas for calculating the corrected volume. To conserve memory space, integer arithmetic, rather than floating point arithmetic, is utilized in the calculations.

REFERENCES:
patent: 3701280 (1972-10-01), Stroman
patent: 3729995 (1973-05-01), Kovacs et al.
patent: 3752393 (1973-08-01), Moseley
patent: 3755806 (1973-08-01), Bunting
patent: 4056717 (1977-11-01), Cornforth
patent: 4149254 (1979-04-01), Molusis
patent: 4173891 (1979-11-01), Johnson
patent: 4238825 (1980-12-01), Geery
patent: 4253156 (1981-02-01), Lisle et al.

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