Engineering topics
Publications and source records attributed to Smith, J. R., Jr..
Compact balanced-bellows dry type spirometer was designed to be insensitive to acceleration fields along any or all coordinate axes. It provides true indication of respiratory action of test subject without need for calibration in acceleration fields.
Device monitors blood oxygen saturation, blood pressure, pulse rate, and pulse-pressure curve during conditions of high stress in simulated space flight.
Ear oximeter for monitoring blood oxygenation and pressure, pulse rate, and pressure pulse curve, using dc and ac amplifiers
Three-port transfer valve with one port open continuously suitable for manned space flight
Quick-acting, remote controlled valve connects either one of two oxygen or air supplies to a breathing tube. The valve, which is fall-safe, incorporates a cammed piston arrangement that is driven by a remote controlled reversible rotary solenoid or reversible electric motor.
Temperature compensated solid state differential amplifier with application in bioinstrumentation circuits
Amplifier circuit with network for automatic temperature compensation to cancel unbalanced noise useful in electrocardiography
Circuit utilizing a transistorized differential amplifier is developed for biomedical use. This low voltage operating circuit provides adjustable cancellation at the input for unbalanced noise signals, and automatic temperature compensation is accomplished by a single active element across the input-output ends.
Change in heart blood pressure, arterial blood oxygen saturation and cardiac rhythm due to acceleration stress
Physiological effects of acceleration on pilot performance
Physiological instrumentation systems for monitoring pilot response to stress at zero and high g