Advanced design modules for lunar surface solar array power systems.
Design, fabrication and evaluation of lunar base solar array power modules, emphasizing structural/ dynamic, thermal vacuum and acoustic tests
Boretz, J. E.↗
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Results for “Modulation”
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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Solar modulation of galactic cosmic rays. I.
Equations governing cosmic ray modulation and approximate equations valid at high and low energies
Axford, W. I.↗
Limit cycle oscillations in pulse-modulated systems.
Pulse modulated feedback system for satellite attitude control, analyzing relationship between physical parameters to ensure two pulse limit cycle oscillation stability
Clark, R. N.↗
Thermostatic expansion valve improved by dual pneumatic modulation
Addition of a secondary pneumatic modulation input improves the standard devices used on thermostatic expansion valves. The valves normally meter incoming refrigerant flow through an orifice valve controlled by a valve-actuating diaphragm.
Pringle, G.↗
Coplanar interconnection module
Module for interconnecting a semiconductor array to external leads or components incorporates a metal external heat sink for cooling the array. Heat sink, extending down from the molded block that supports the array, is immersed in a liquid nitrogen bath which is designed to maintain the desired array temperature.
Steward, R. D.↗
Lamp modulator provides signal magnitude indication
Lamp modulator provides visible indication of presence and magnitude of an audio signal carrying voice or data. It can be made to reflect signal variations of up to 32 decibels. Lamp life is increased by use of a bypass resistor to prevent filament failure.
Zeman, J. R.↗
Ferrite attenuator modulation improves antenna performance
Ferrite attenuator inserted into appropriate waveguide reduces the gain of the antenna element which is causing interference. Modulating the ferrite attenuator to change the antenna gain at the receive frequency permits ground tracking until the antenna is no longer needed.
Hooks, J. C.↗
Delta-modulation for the transmission of image data Final report
Delta modulation for image data transmission
Ehrman, L.↗
Investigation of laser dynamics, modulation and control by means of intra-cavity time varying perturbation Quarterly status report, 1 Aug. - 31 Oct. 1969
Laser dynamics, modulation, and control by intra- cavity time varying perturbation
Harris, S. E.↗
Modern digital control for a small iterative analog computer - The APE II digital module
Digital computer module for control of iterative analog computer system
Conant, B. K.↗
Performance of a 48-module swirl-can turbojet combustor segment at high temperatures using ASTM-A1 fuel
Performance of turbojet swirl module combustor segment at high temperatures
Moyer, H. M.↗
Potting electronic modules
Developments in technology of encapsulating, potting, or embedding electronic modules
Keith, R. E.↗
Apollo lunar module descent engine ablative chamber - Injector compatibility improvement study Final report
Improved liner for Apollo lunar module descent engine injection chamber
Source record↗
Design analysis and performance of a 2.5 kVA pulse-width-modulated static inverter
Circuits and performance of pulse width modulated dc to ac static inverter
Birchenough, A. G.↗
Digital data sampling modules Quarterly progress report, 1 Apr. - 30 Jun. 1969
Final design and initial fabrication of microminiature digital data sampling modules
Source record↗
Statistical and stability analyses of neural pulse frequency modulator Semiannual status report, period ending 1 Feb. 1969
Statistical analysis of neural pulse frequency modulator
Hutchinson, C. E.↗
Stability limits and efficiency of swirl-can combustor modules burning natural gas fuel
Stability limits and efficiency of swirl can combustor modules burning natural gas fuel
Marchionna, N. R.↗
Apollo command module mockup flammability tests
Apollo command module mockup flammability tests using three different atmospheres
Bricker, R. W.↗
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