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Continuous liquid level measurements with time-domain reflectometryDescription of the basic principles of radar measurements of cryogenic liquid levels in storage vessels by time-domain reflectometry. The probe consists of a right circular coaxial transmission line positioned vertically in the storage vessel and having holes drilled in the outer conductor to permit penetration of the liquid into the annular gap. RF pulses transmitted through the probe are reflected at liquid/gas interface and returned for sampling at the input. The measured delay of the return pulse is displayed as the level of liquid in the vessel.
Document ID
19740031308
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Cruz, J. E.
Rogers, E. H.
Heister, A. E.
(National Bureau of Standards, Institute for Basic Standards, Boulder Colo., United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1973
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Cryogenic Engineering Conference
Location: Boulder, CO
Start Date: August 9, 1972
End Date: August 11, 1972
Accession Number
74A14058
Distribution Limits
Public
Copyright
Other

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