Reduced gravity battery test program Quarterly report, Feb. 21 - May 20, 1968
Breadboard model design and construction of test equipment for studying silver zinc battery behavior in zero-g environment of earth orbit
Yerman, A. J.↗
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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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Nimbus B PCM telemetry subsystem, volume 1, sections 1 through 8 Final report,
Design, manufacture, and testing of Nimbus B PCM telemetry subsystem, bench test equipment, and ground stations
Source record↗
Proton and ultra-violet irradiation of the target sphere material on RAE-A in a system allowing for in-situ optical measurement
Test equipment for in-situ optical reflectance measurement of zinc titanate over Lexan target material on RAE-A satellite after proton and ultraviolet irradiation
Nicoletta, C. A.↗
Development of instrumentation for airborne collection of atmospheric organic chemicals Final report
Test equipment development for organic aerosol and terpene determinations through atmospheric sampling
Cavanagh, L. A.↗
A method for determining and testing for second breakdown characteristics in transistors.
Test equipment for second breakdown characteristics of power transistors
Morris, J. K.↗
A high Reynolds number wind tunnel and its operating concept.
Test equipment and operating concept of short duration wind tunnel simulating high Reynolds number
Davis, J. W.↗
Reduced gravity battery test program Quarterly report, 21 May - 20 Aug. 1968
Breadboard model of test equipment for studying silver-zinc batteries in weightless environment
Source record↗
Development of compressor end seals, stator interstage seals, and interior pivot seals in advanced air breathing propulsion systems Semiannual report, 30 Jun. - 31 Dec. 1968
Design and performance of seal test equipment
Hawkins, R. M.↗
Dynamic stall simulation problems
Dynamic airfoil stall simulation in wind tunnels, considering pitch rate, Reynolds number, oscillation and test equipment effects
Ericsson, L. E.↗
Resilience testing device Patent
Automated ball rebound resilience test equipment for determining viscoelastic properties of polymers
Jellison, J. C.↗
High voltage protection network
Circuit protects technical personnel and test equipment from hazardous currents conducted through safety barriers and into data acquisition equipment. Network isolates energy source, restricts arcing to remote area, and dissipates harmlessly residual energy transient.
Cambra, J. M.↗
Nondestructive testing of microtab welds
Introduction of sinusoidal signal across welded structure to determine reliability of integrated circuit connections is discussed. In-phase frequencies and quadrature frequency functions are used to evaluate weld reliability. Schematic diagram of test equipment and components is provided.
Feinstein, L.↗
Technique for increasing yield of trifluoroni-trosomethane-tetrafluoro- ethylene copolymer
Polymerization technique using equimolar amounts of trifluoronitrosomethane and tetrafluoroethylene to increase yield of copolymer is described. Yields were increased by ninety percent and final product displayed better physical properties. Test equipment and chemical reactions for process are described.
Glickman, S. A.↗
Redundancy approaches in bubble domain memories
Fabrication of integrated circuit chips to compensate for faulty memory elements is discussed. Procedure for testing chips to determine extent of redundancy and faults is described. Mathematical model to define operation is presented. Schematic circuit diagram of test equipment is provided.
Almasi, G. S.↗
The effects of gravity on flammability
The effects of weightlessness and increased gravity on flammability and flame propagation are discussed. The test equipment and procedures for determining gravity effects are described. Comparisons are made between flammability under normal gravity conditions and occurrences under altered gravity conditions
Pearce, J. P.↗
Statistical complex fatigue data for SAE 4340 steel and its use in design by reliability
A brief description of the complex fatigue machines used in the test program is presented. The data generated from these machines are given and discussed. Two methods of obtaining strength distributions from the data are also discussed. Then follows a discussion of the construction of statistical fatigue diagrams and their use in designing by reliability. Finally, some of the problems encountered in the test equipment and a corrective modification are presented.
Kececioglu, D.↗
Hypervelocity impact testing of cables
The physics and electrical results obtained from simulated micrometeoroid testing of certain Skylab cables are presented. The test procedure, electrical circuits, test equipment, and cable types utilized are also explained.
Jex, D. W.↗
Test report: Shock test of the electron/proton spectrometer structural test unit
A shock test of the electron-proton spectrometer structural test unit was conducted. The purpose of the shock test was to verify the structural integrity of the electron-spectrometer design and to obtain data on the shock response of the electronics and electronic housing. The test equipment is described and typical shock response data are provided.
Vincent, D. L.↗