Search NASASearch

Engineering topics

Hickman, D. M.

Publications and source records attributed to Hickman, D. M..

Noncontacting electrokinetography system

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.

Davis, J. G.

Analog device simulates physiological waveforms

An analog physiological simulator generates representative waveforms for a wide range of physiological conditions. Direct comparison of these waveforms with those from telemetric inputs permits quick detection of signal parameter degradation.

Hickman, D. M.