Differential pressure gauge for cryogenic fluids which...

Data processing: measuring – calibrating – or testing – Measurement system – Dimensional determination

Reexamination Certificate

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Reexamination Certificate

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06944570

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.

REFERENCES:
patent: 5159839 (1992-11-01), Silber et al.

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