Noncontact acoustic technique utilizing air-coupled ultrasonic transducers for measuring motion of chest wall during cardiac cycle gives information on changes in size and compliance of heart ventricles. Information is digitized and fed to microprocessor for rapid storage and analysis for aid in diagnosis of heart condition.
Noncontacting electrokinetography system
NASA Tech Briefs ; 3 , 4
1979-03-01
Miscellaneous
No indication
English
NTRS | 1987
|Noncontacting valve-position indicator
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Noncontacting Inspection Heads For Robots
NTRS | 1988
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