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Continuous-Reading Cryogen Level SensorTwo pressure transducers used in system for measuring amount of cryogenic liquid in tank. System provides continuous measurements accurate within 0.03 percent. Sensors determine pressure in liquid and vapor in tank. Microprocessor uses pressure difference to compute mass of cryogenic liquid in tank. New system allows continuous sensing; unaffected by localized variations in composition and density as are capacitance-sensing schemes.
Document ID
19830000611
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Barone, F. E.
(Martin Marietta Corp.)
Fox, E.
(Martin Marietta Corp.)
Macumber, S.
(Martin Marietta Corp.)
Date Acquired
August 11, 2013
Publication Date
November 1, 1984
Publication Information
Publication: NASA Tech Briefs
Volume: 8
Issue: 2
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
MFS-25873
Accession Number
83B10611
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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