Liquid 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.
Fast response cryogen level sensor
NASA Tech Briefs ; 5 , 3
1981-01-01
Miscellaneous
No indication
English
Continuous-Reading Cryogen Level Sensor
NTRS | 1984
|Cryogen-Based Breathing Gas System
SAE Technical Papers | 1997
|Ultra-low temperature cryogen-free refrigerator
British Library Online Contents | 1997
|