Volumetric measurement of tank volume

Details Volumetric measurement of tank volume Volumetric measurement of tank volume

1989-12-28

1991-03-26

Raevis, Robert

Measuring and testing

Volumetric content measuring

G01F 1700

Patent

active

050019244

ABSTRACT:
A method for determining the volume of compressible gas in a system including incompressible substances in a zero-gravity environment consisting of measuring the change in pressure (.DELTA.P) for a known volume change rate (.DELTA.V/.DELTA.t) in the polytropic region between isothermal and adiabatic conditions. The measurements are utilized in an idealized formula for determining the change in isothermal pressure (.DELTA.P.sub.iso) for the gas. From the isothermal pressure change (.DELTA.P.sub.iso) the gas volume is obtained. The method is also applicable to determination of gas volume by utilizing work (W) in the compression process. In a passive system, the relationship of specific densities can be obtained.

REFERENCES:
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patent: 4072050 (1978-02-01), Ter-Minassian
patent: 4384925 (1983-05-01), Stetter et al.
patent: 4726216 (1988-02-01), Kohsaka et al.
patent: 4781061 (1988-11-01), Baumgartl

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