NASA NTRS · 19720024810
Continuous liquid level measurements with time domain reflectometry
Abstract
A time domain reflectometer is considered as a closed loop, one-dimensional radar system. Applying the principle of time domain reflectometry to the detection of cryogenic liquid levels, measurements on the order of + or - 0. 3% of total liquid level probe length are possible. The time domain reflectometer liquid level measurement is independent of liquid density variations and is simple to calibrate and operate. Construction of the liquid level sensing probe is described.
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Cruz, J. E., Rogers, E. H., Hiester, A. E.. 1972-01-01. Continuous liquid level measurements with time domain reflectometry. https://ntrs.nasa.gov/citations/19720024810
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