Safe, 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.
Microprocessor-controlled ultrasonic plethysmograph
NASA Tech Briefs ; 5 , 4
1981-04-01
Miscellaneous
No indication
English
Further Development of a Fibre Optic Respiratory Plethysmograph (FORP)
British Library Conference Proceedings | 1994
|Microprocessor controlled tester
Tema Archive | 1977
|Microprocessor-controlled receiver
NTRS | 1980
|Microprocessor controlled force actuator
AIAA | 1988
|Microprocessor-controlled data synchronizer
NTRS | 1980
|