Spectral mass gauging of unsettled liquid with acoustic waves

Jeffrey Feller, Ali Kashani, Michael Khasin, Cyrill Muratov, Viatcheslav Osipov, Surendra Sharma

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


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.

Original languageEnglish (US)
Article number012003
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
StatePublished - Dec 30 2017
Event2017 Cryogenic Engineering Conference, CEC 2017 - Madison, United States
Duration: Jul 9 2017Jul 13 2017

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • General Engineering


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