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Acoustic Device Would Measure Density Of GasProposed acoustic sensor measures density of flowing gas or mixture of gases. Constructed in variety of configurations for use in monitoring industrial processes. Basic configuration, sensor comprises narrow tube closed at one end and open at other, sound transmitter located in closed end, and microphone located part way along tube. Entire sensor, or at least open end of tube, placed inside pipe or vessel containing gas, density of which measured. Transducer produces constant-velocity-amplitude sound waves at frequency lower than fundamental resonant frequency of tube.
Document ID
19920000011
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Shakkottai, Parthasarathy
(Caltech)
Kwack, Eug Y.
(Caltech)
Back, Lloyd H.
(Caltech)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Publication Information
Publication: NASA Tech Briefs
Volume: 16
Issue: 1
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
NPO-18155
Accession Number
92B10011
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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