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Level Sensor for Cryogenic FluidsHot wire sensor combined with voltage-comparator circuit monitors liquid level in cryogenic-fluid storage tanks. Sensor circuit adaptable to different liquids and sensors. Constant-current source drives current through sensing probe and fixed resistor. Voltage comparator circuits interpret voltage drops to tell whether probe is immersed in liquid and is current in probe.
Document ID
19830000009
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Simmons, N. E.
(Rockwell International Corp.)
Schroff, R. A.
(Rockwell International Corp.)
Date Acquired
August 11, 2013
Publication Date
August 1, 1983
Publication Information
Publication: NASA Tech Briefs
Volume: 7
Issue: 3
ISSN: 0145-319X
Subject Category
Electronic Components And Circuits
Report/Patent Number
MSC-20302
Accession Number
83B10009
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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