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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Refractive strength of human eye is monitored by optometer that automatically and continuously images infrared test pattern onto the retina. Condition of focus of the eye at any instant is determined from optometer settings needed to maintain focus of the pattern on the retina.
Seven integrated circuits incorporated at very low cost into frequency counters and digital voltmeters performing a voltage-to-frequency conversion permit automatic range changing. Extra decades are switched into and out of the counting chain as a function of the counter during the previous counting period.
Automatic tuning system permits frequency synchronization between two hydrogen masers. System matches spaceborne clock performance with that of ground-based clock to test red shift theory. This system, used in conjunction with radio astronomy for long-baseline interferometer experiments, serves as a tool for investigation of distant universe phenomena.
Scale model performance tests on automatically activated silver zinc battery for deep space exploration
FORTRAN 4 subprograms for automatic computer microfilm plotting
Automatic restart control system for axisymmetric mixed compression inlet
Development of automatic guidance modes and associated software for V/STOL avionics program
Automatic test and planning procedures bibliography for navigation and air traffic control satellites
Very low frequency air navigation, automatic calibration of barometric sensing, and universal coordinate system for air traffic control
Transducer and optical coding unit for automatic control of television systems
Operating principle and functional automatic circuit for stroboscopic oscillograph control
Automatic cell counter using analog techniques and standard electronic TV components
Performance evaluation of evaporative water recovery subsystem utilizing automatic feed control
Automatic calibration system for strain-gage pressure transducers
Automatic controllers for liquid cooling garment of Apollo full pressure suit
Performance characteristics for automatic data processing equipment for ERTS
Manual for operation of automatic pipe and tube welding machine
Automatic control theory applied to nuclear rocket dynamics and control using stochastic algorithms