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Microprocessor-controlled ultrasonic plethysmographSafe, nonintrusive microprocessor system times ultrasonic pulses to measure limb cross-sectional area. Simple instrument requires no calibration and does not confine leg movement, making tests relating limb volume to activity level possible. Program considers more realistic geometries of human limb than circular cross-sections and monitors changes in area with great accuracy. Errors due to body temperature changes and timing roundoff are insignificant.
Document ID
19800000500
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Bhagat, P. K. (University of Kentucky)
Wu, V. C. (University of Kentucky)
Date Acquired
August 10, 2013
Publication Date
April 1, 1981
Publication Information
Publication: NASA Tech Briefs
Volume: 5
Issue: 4
ISSN: 0145-319X
Subject Category
Life Sciences
Report/Patent Number
MSC-18759
Accession Number
80B10500
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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