Ultrasonic void estimation system for determination of liquids in microgravity tanks

An ultrasonic measurement technique has been developed for determining the quantity of liquid storage tanks in the microgravity environment. When the void fraction in a vessel is sufficiently small and the liquid wets the vessel, a spherical void interior to the liquid forms. The proposed procedure,...

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Bibliographic Details
Published inIEEE transactions on instrumentation and measurement Vol. 37; no. 4; pp. 642 - 647
Main Authors Roberti, D., Looft, F.J., Ludwig, R.
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.12.1988
Institute of Electrical and Electronics Engineers
Subjects
Acoustics
Exact sciences and technology
Extraterrestrial measurements
Fundamental areas of phenomenology (including applications)
Gravity
Iterative algorithms
Liquids
Measurement techniques
Physics
Prototypes
Transducers
Ultrasonic imaging
Ultrasonic variables measurement
Ultrasonics, quantum acoustics, and physical effects of sound
Volume measurement
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Summary:An ultrasonic measurement technique has been developed for determining the quantity of liquid storage tanks in the microgravity environment. When the void fraction in a vessel is sufficiently small and the liquid wets the vessel, a spherical void interior to the liquid forms. The proposed procedure, the void estimate center technique (VECT), uses an iterative algorithm to compute the center location and thus the radius of a spherically shaped void. The VECT algorithm has been developed as a two-dimensional model that can also be easily extended to three-dimensional problems. After evaluating different transducer locations, a prototype was constructed and its performance was evaluated. Both system design and hardware are discussed in detail.< >
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0018-9456
1557-9662
DOI:10.1109/19.9830