Differential pressure gauge for cryogenic fluids which selects a density value based on pressure measurement
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United States of America Patent
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Sep 13, 2005
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N/A
app pub date -
Jun 29, 2004
filing date -
Jul 31, 2000
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Abstract
A differential pressure gauge for a cryogenic storage tank provides onboard entry, by an operator, of tank dimensions, tank orientation stratification coefficient, and the type of liquid stored within the tank. A differential pressure sensor supplies a signal corresponding to a differential pressure. A pressure sensor supplies a signal corresponding to the head pressure. The gauge uses the information supplied by an operator, combined with stored formulas and liquid characteristics, to perform real-time liquid volume computations. The liquid volume may be displayed on the gauge itself or may be transmitted via telemetry to an external device.
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