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Fast response cryogen level sensorLiquid level in cryogenic tank or pipe, or amount of gas trapped in pipeline flow, is monitored electronically by cylindrical capacitive sensor. Changes in liquid level between concentric tubes of capacitor change its impedance, varying current in drive circuit. Since it is oriented parallel to direction of liquid flow, sensor presents little resistance to moving fluid.
Document ID
19800000374
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Fitzpatrick, J. B. (Simmonds Precision Products, Inc.)
Maier, L. C. (Simmonds Precision Products, Inc.)
Date Acquired
August 10, 2013
Publication Date
January 1, 1981
Publication Information
Publication: NASA Tech Briefs
Volume: 5
Issue: 3
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
MSC-18697
Accession Number
80B10374
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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