Apparatus for correcting measured gas flow

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

G - Physics

01

F

354/31

G01F 15/04 (2006.01) G01F 15/075 (2006.01) G06G 7/50 (2006.01)

Patent

CA 1169561

APPARATUS FOR CORRECTING MEASURED GAS FLOW 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 super- compressibility 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 util- ized in the calculations.

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