Instrument unit coolant pumps Final report
Engineering drawings for coolant pump and dc motor assembly
Edwards, W. V.↗
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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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Wide-range pulse-height discriminator
Improved pulse amplitude discriminator has discriminator level in millivolt range, permits simple adjustment over wide range, and is stable within one percent at temperatures between minus 20 degrees and plus 60 degrees C. The discriminator responds to narrow pulses /500 nsec/, draws little power /milliwatts/, and requires simple circuitry.
Cancro, C. A.↗
Two terminal current limiter
Two terminal device protects dc electronic circuits and experimental solid state devices, and replaces fuses and circuit breakers directly. The device consists of two transistors and two resistors and draws its necessary supply voltage from power source being protected. The limiter acts as a voltage regulator.
Doubt, L. S.↗
Man-machine interactive system simplifies computer-aided circuit design
Langley interactive computerized circuit analysis capability /LICCA/ enables designer to draw electronic circuit diagrams on cathode ray tube screen. This information is submitted as input to user-selected circuit analysis program. LICCA accommodates binary logic circuits and circuits with discrete components, and monitors operator's instructions to detect errors.
Bavuso, S. J.↗
Atlas of cometary forms - Structures near the nucleus
Atlas of drawings and photographs of comets
Donn, B.↗
The effects of outgassing materials on voltage breakdown
We will start by reviewing some of the basic equations which regulate outgassing and show their dependency on temperature and thickness. Then we will draw an analogy between mass transfer or outgassing and radiant heat transfer, and show how we utilize a computer program initially written for radiant heat transfer to determine the condensation rate caused by mass transfer.
J. F. Scannapieco↗
Liquid-gas separation system Patent
Liquid-gas separator adapted for use in zero gravity environment - drawings
Prescott, W. A.↗
Die beugungserscheinungen - A tribute to F. M. Schwerd's monumental work on Fraunhofer diffraction
Schwerd color drawings of amplitude and intensity distributions of Fraunhofer diffraction patterns, verifying accuracy with computer generated diffraction plate photographs
Harris, F. S., Jr.↗
Cartesian-coordinate dimensioning for plumbing systems
Nonprogressive dimensioning method specifies Cartesian coordinates for each critical point in detail drawings of precision plumbing and ducting components to avoid tolerance accumulation. Method permits direct fabrication of tubing shapes without necessitating generation of a preproduction tubing mockup.
Buirgy, P. A.↗
Optical communications system Patent
Specifications and drawings for semipassive optical communication system
Thomas, N. E.↗
Diode/Load - Special Node
Automated Sneak Program /ASP/ to generate diode, load, and special node reports which aid in drawing of circuitry paths for sneak circuit analysis of Apollo spacecraft
Guillory, A. R.↗
Bootstrap Unloader-Patent
Bootstrap unloading circuits for sampling transducer voltage sources without drawing current
Pfiffner, H. J.↗
SNAP-8 electrical protective system module design review
Design of snap-8 electrical protective system module including fabrication and assembly drawings
Waldschmidt, N. E.↗
Increasing the response of PIN photodiodes to the ultraviolet
Solid state device uses sapphire windows and avoids coatings which absorb ultraviolet radiation and ultimately alter detector geometry. Ultimate solution for ultraviolet response is geometry with maximum peripheral area and horizontal field structure to draw out photon induced current carriers.
Burrous, C. N.↗
Improved feedback shift register
Design of feedback shift register with three tap feedback decoding scheme is described. Application for obtaining sequence synchronization patterns is examined. Operation of the circuitry is described and drawings of the systems are included.
Perlman, M.↗
Video information system
Computerized information storage and display system directs storage of documents, drawings, photographs, fingerprints, etc., and permits rapid retrieval for real-time viewing on remote consoles.
Ritch, E. R.↗
Laser mass spectrometer
Development of time of flight mass spectrometer using laser powered vaporization source is discussed. Operation of equipment to measure thermal velocities of individual mass species is described. Illustration of test equipment installation and detailed line drawing of ion producing equipment are provided.
Lincoln, K. A.↗
Dynamic upper atmospheric force model on stabilized vehicles for a high-precision trajectory computer program
The upper atmosphere model draws heavily on the behavior of the earth's upper atmosphere which exhibits cyclic as well as irregular variations in density profile, temperature, pressure, and composition in unison with solar activities as deduced from the more recent land-based and satellite observations. The lift and drag model is designed specifically for inertially stabilized vehicles of the Mariner class, with possible extension to gravity gradient stabilized vehicles of the GEOS class. The model considers operation in the free molecular flow regimes with large Knudsen numbers. The vehicle is considered a composite structure with basic components having well-defined shapes, each with its own surface characteristics in terms of temperature, reflectivity, and accommodation of free stream molecules. The model takes into account both the calculation of precise aerodynamic force coefficients in terms of expansion of modified Bessel functions in speed ratios and angle of attack, and approximate force coefficients when the speed ratios approach infinity. Other considerations include specular and diffused reflectivity, shielding, and shadow effects.
Khatib, A. R.↗