Computer Science – Sound
Scientific paper
Jan 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aipc..654..239w&link_type=abstract
SPACE TECHNOLOGY AND APPLICATIONS INT.FORUM-STAIF 2003: Conf.on Thermophysics in Microgravity; Commercial/Civil Next Generation
Computer Science
Sound
Ultrasonics, Quantum Acoustics, And Physical Effects Of Sound
Scientific paper
An ultrasonic pulse-echo method for detecting the location of the air-liquid interface of a air-liquid vortex in microgravity was tested. A vortex was established in near-zero gravity conditions in hydraulically-stirred phase separator. A single ultrasonic transducer located about mid-plane of the vortex was used to sense the thickness of the layer of liquid inside the phase separator and local to the ultrasonic transducer. Comparison was made between the sensed liquid layer thickness and an ideal right circular liquid annulus calculated from the know liquid inventory in the phase separator. The absolute error between the sensed and ideal annulus thicknesses was found to be in the neighborhood of 0.1 inches for the full operational range of the separator.
Best Frederick
Bray D.
Carron I.
Kurwitz Cable
Williams Richard
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