会议论文详细信息
Cryogenic Engineering Conference 2017
Spectral mass gauging of unsettled liquid with acoustic waves
材料科学;物理学
Feller, Jeffrey^1 ; Kashani, Ali^2 ; Khasin, Michael^3 ; Muratov, Cyrill^4 ; Osipov, Viatcheslav^3 ; Sharma, Surendra^1
NASA Ames Research Center, Moffet Field
CA, United States^1
MEI Company, NASA Ames Research Center, Moffett Field
CA, United States^2
SGT, Inc., NASA Ames Research Center, Moffett Field
CA, United States^3
Department of Mathematical Sciences, NJIT, NJ, United States^4
关键词: High frequency HF;    Key technologies;    Mathematical properties;    Propellant mass;    Reliable methods;    Resonance frequencies;    Space exploration programs;    Two-phase liquid;   
Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/278/1/012003/pdf
DOI  :  10.1088/1757-899X/278/1/012003
学科分类:材料科学(综合)
来源: IOP
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【 摘 要 】

Propellant mass gauging is one of the key technologies required to enable the next step in NASA's space exploration program. At present, there is no reliable method to accurately measure the amount of unsettled liquid propellant in a large-scale propellant tank in micro- or zero gravity. Recently we proposed a new approach to use sound waves to probe the resonance frequencies of the two-phase liquid-gas mixture and take advantage of the mathematical properties of the high frequency spectral asymptotics to determine the volume fraction of the tank filled with liquid. We report the current progress in exploring the feasibility of this approach in the case of large propellant tanks, both experimental and theoretical. Excitation and detection procedures using solenoids for excitation and both hydrophones and accelerometers for detection have been developed. A 3% uncertainty for mass-gauging was demonstrated for a 200-liter tank partially filled with liquid for various unsettled configurations, such as tilts and artificial ullages.

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