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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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At least 271 records · Page 15
All sourcesNASA NTRSDOE OSTI
NASA NTRS1969

A magnifying scratch-gage force transducer

Single-component scratch-gage transducer incorporates a unique motion magnification scheme to increase the magnitude of the load measuring scratch approximately 15 times over that of conventional models. It is small, load carrying and high in natural frequency.

Scott, C. E.↗
NASA NTRS1969

Vacuum gage calibration system for 10 to the minus 8th power to 10 torr

Calibration system consists of a gas source, a source pressure gage, source volume, transfer volume and test chamber, plus appropriate piping, valves and vacuum source. It has been modified to cover as broad a range as possible while still providing accuracy and convenience.

Holanda, R.↗
NASA NTRS1970

Butt welder for fine gage wire

Device welds fine gage wire 0.001-in. in diameter. It permits welding of thermocouple junctions of the same size with straight sections adjacent to the junctions. Electrode arrangement provides constant pressure on the joint during welding while fully supporting the wires to prevent buckling or movement.

Kabana, W. B.↗
NASA NTRS1970

Strain gage load measuring device - A concept

Instrumenting tape members of textile parachutes to determine load capability is accomplished by mounting strain-gage instrumented metal plates to the tape by stiff rubber pads. The pads permit gradual transfer of the load from the tape to the plates without stress concentrations in the tape.

Mickey, F. E.↗
NASA NTRS1970

An improved Orbitron ionization gage measures ultrahigh vacuum

Ionization gage with improved signal-to-noise ratio has a helical coil electrode which separates the solid cathode ion collector from the volume where ionization of gas molecules takes place. Helical coil increases lifetime of electrons and reduces secondary emission from the collector.

Gosselin, C. M.↗
NASA NTRS1970

Quadrupole ionization gage measures ultrahigh vacuum

Quadrupole system, energized with a 200 MHz electric field, restrains ionizing electrons within the center of the ionization gage. Oscillatory trajectory of the electrons increases the probability of ionizing the gas molecules, lowers background X-ray level, and increases the signal-to-noise ratio.

Schwarz, H. J.↗