NASA NTRS · 19830000611
Continuous-Reading Cryogen Level Sensor
Abstract
Two pressure transducers used in system for measuring amount of cryogenic liquid in tank. System provides continuous measurements accurate within 0.03 percent. Sensors determine pressure in liquid and vapor in tank. Microprocessor uses pressure difference to compute mass of cryogenic liquid in tank. New system allows continuous sensing; unaffected by localized variations in composition and density as are capacitance-sensing schemes.
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Barone, F. E., Fox, E., Macumber, S.. 1984-11-01. Continuous-Reading Cryogen Level Sensor. https://ntrs.nasa.gov/citations/19830000611
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