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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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Device measures the coefficient of static friction of magnetic tape over a range of temperatures and relative humidities. It uses a strain gage to measure the force of friction between a reference surface and the tape drawn at a constant velocity of approximately 0.0001 inch per second relative to the reference surface.
Miniature pressure transducer responds to static or dynamic pressures acting against a structural surface without introducing errors caused by stresses in the structural surface. This is accomplished by a thin stainless steel pressure sensing diaphragm with an attached foil strain gage.
Miniature pressure transducers with diffused, heavily doped silicon strain-gage sensor elements, operates over a wide temperature range. Small thermal mass combined with close coupling between a metallic diaphragm and sensor elements minimizes sensitivity to temperature transients.
Piezoelectric micrometeoroid gage evaluated for response to elastic and inelastic impacts
Research progress in plasma transport properties, wave interaction, electron density measurements, thermal conductivity of argon and helium, heat transfer and pressure gages
Ionization gage behavior in various gas mixtures and atmospheric compositions
Shell structures buckling test data dependence on specimen design and test procedure, discussing stress concentrations, materials selection and strain gages
Ultrahigh vacuum gage calibration and operation noting vacuum system and hot cathode magnetron
High amplitude square shaped shock waves in solid propellants, discussing shock wave generation by impact experiment and electrical resistance gage measurement
Sling-shot shock tester to improve acceleration measurement employing DC excited bridge, strain gage and calibration by static loading
Surveyor 3 lunar landing noting TV, thermal sensors, landing radar, strain gages and soil sampler for measuring lunar surface properties
Characteristics of magnetron type cold cathode ionization gages
Calibration method and ultrahigh vacuum components for ionization gage and mass spectrometer
Ring oscillator and strain gage transmitter development for multichannel biotelemetry system
Low pressure application of orbitron and ion gage designs
Differential pressure switch based on photosensitive semiconductor and strain gages
Monte Carlo computer analysis on molecular kinetics of Bayard-Alpert and redheat vacuum gages for Explorer 17 and Explorer 32 satellites
Production of gadolinium-153 for use in atmospheric density gages based on gamma backscatter measurements