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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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Video electromechanical probe visually inspects and measures internal offset and peaking of welds in relatively large piping. Irregularity dimensions are recorded on peripheral equipment consisting of video tape and X-Y plotter. The probe is used for inspection of vacuum-jacketed liquid lines that cannot be inspected externally.
Harmonic distortion analyzer effects rapid and accurate setup and calibration of magnetic tape instrumentation recorders. The analyzer is portable, requires no warmup period and need not be calibrated for normal usage. Average setup time with this analyzer is approximately 30 seconds per track.
Apparatus reduces Time Base Error /TBE/ in the playback of digital data from magnetic recording equipment. The apparatus uses a magnet which employs a servo position control of the tape by which the playback data clock is phase locked with a fixed frequency reference signal.
Ultrasonic reflection system automatically and nondestructively detects and records the propagation of fatigue cracks in test specimens undergoing fatigue cycling. A reflector plate obtains a reference signal and monitors the location of the tip of a propagating fatigue crack.
High speed selective data recording system
Solar particle alert network digital magnetic tape recording format and Fortran data reduction program
Standard format for on-station digital recording of C-band radar metric tracking data
Fourier series digital computer simulation of tape recording process - signal detection in prescence of white Gaussian noise
Experimental test model of spaceborne magnetic tape recorder using iso-elastic drive system and electron beam welded housing
Tradeoff design study in spacecraft tape recorder development
Mushroom shaped transducer for recording pressure in shock tube
Signal conditioning methods and equipment used for inflight recording of pilot biomedical data
Design, operation and construction of event recorder for monitoring heat ablation data
Computer program for medical records management
Eye marker recording instrument for study of eye movement and vestibular function
Design schematics and systems analysis of servo control unit used on endless loop magnetic tape recorder
Spacecraft data recording and reproducing systems respecting basic digital and analog data handling capabilities and/or requirements
Scanner for short sections of magnetic recording tape