SEARCH · Engineering Papers
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Metal and alloys micro and macro stress-strain behavior data correlated for linear differential transformers, strain gages, longitudinal resonance waves and X ray diffraction
Ionization gage with reverse biased silicon carbide p-n junction hot electron emitter as source
Outgassing pressure variation with time near perigee in satellite-borne pressure gages, using Langmuir model of surface adsorption
Vacuum interferometer strain gage for absolute earth strain measurement via length change comparison with wavelength standard
Ultrahigh vacuum calibration system for vacuum gages and mass spectrometers based on pressure attenuation and molecular beam techniques
Test program to verify theory used in calculating axial thrust uses turbopump instrumented with /a/ proximity transducers for measuring shaft position, /b/ a strain gage thrust bearing carrier to measure axial thrust, and /c/ internal pressure taps to define component pressure gradients used in thrust calculations.
Pulsed ruby laser emits two optical frequencies simultaneously so holographic recordings of test object give images showing desired range contours. Process enables generation of contour maps for practical applications such as gaging size and shape of mechanical parts and other structures.
Cryoentrainment pump study and behavior of nude ionization gages at low temperature
Strain gages on superpressure balloon flights from Christchurch, New Zealand - Jul. 1968 to Dec. 1969
Transient heat transfer gage for measuring total radiant intensity from far ultraviolet and ionized high temperature gases
Testing electrical, mechanical, and handling properties and environmental characteristics of small gage electrical wire for interplanetary spacecraft
Water cooled gage for strain measurements in high temperature environments
Describing hot filament type Bayard-Alpert ionization gage with ion collector buried or removed from grid structure
Ionization control system design for monitoring separately located ion gage pressures on vacuum chambers
Connector internal force gage for measuring strength of electrical connection
Automatic recording McLeod gage with three electrodes and solenoid valve connection
Control system for pressure balance device used in calibrating pressure gages
Punch and die device for forming convolution series in thin gage metal hemispheres