AC ARC DYNAMICS, STABILIZATION AND STARTING CRITERIA.
Ac arc dynamics, stabilization and starting criteria
ARC↗
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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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AC POWER SUPPLIES FOR ION ENGINES
Ac power supply for use in an electron-bombardment ion rocket engine
ALTERNATING CURRENT GENERATOR↗
Dc to ac converter operates efficiently at low input voltages
Self-oscillating dc to ac converter with transistor switching to produce a square wave output is used for low and high voltage power sources. The converter has a high efficiency throughout a wide range of loads.
Source record↗
Field effect transistor presents high input impedance in ac amplifier
Four-stage transistorized ac amplifier provides high input impedance and operates at low intrinsic noise levels. It is suited to carrier or narrow band sine wave applications.
Marshall, J. H.↗
Ac ratio transformer technique for precision insertion loss measurements.
Precision microwave insertion loss measurement using AC ratio transformer technique
MEASURING APPARATUS↗
Two-light circuit continuously monitors ac ground, phase, and neutral wires
Two-transformer, two-lamp circuit monitors the continuity of ac ground, neutral, and phase wires. The circuit gives different visual indications if any one of the three lines should become open circuited.
Mee, R. W.↗
Solid state circuit switches ac load
Differential amplifier circuit switches ac signals with peak amplitudes greater than 5 volts. This solid state circuit biases a switching transistor on and off by a 0.1 to 5.0 dc control voltage.
Chapman, C. P.↗
Simple technique determines ac properties of hard superconductive materials
Critical current density of neodymium-titanium alloy samples is analyzed from magnetization curves to determine the ac properties of hard semiconductive materials. A complete family of magnetization curves is obtained, each curve representing performance at a different temperature.
Harper, C. M.↗
Design of a medium power dc to 115 volt, 60 Hertz ac inverter
Design of medium power dc to 115 volt, 60 Hertz ac inverter
POWER CONVERSION↗
A theoretical and experimental study of low voltage, high current dc to ac converters which use either magnetoresistors, superconductors, Hall effect devices, or thin-film devices Final report
Low-voltage, high current dc-ac converter from magnetoresistor, superconductor, Hall effect, or thin-film devices
THIN FILM↗
Methods for dc to ac conversion Semiannual status report
Thin film deposition on metal oxide semiconductor devices, and dc to ac conversion methods
ALTERNATING CURRENT /AC/↗
Atlas-Centaur ac-5 analog/digital load reduction autopilot study
Analog digital evaluation of load reduction autopilot on Atlas Centaur AC-5 vehicle
LOAD FACTOR↗
Flight termination system for Centaur vehicle AC-6
Flight termination system for Atlas/Centaur/ Surveyor vehicle AC-6
CENTAUR LAUNCH VEHICLE↗
Postflight trajectory reassembly AC-6
Postflight trajectory reassembly analysis of Atlas Centaur flight AC-6
COMPUTER SIMULATION↗
Influence of compressibility on conduction- type ac MHD generators
Influence of compressibility on conduction type magnetohydrodynamic ac generators
MAGNETOHYDRODYNAMIC GENERATOR↗
AC power generation with transverse-current magnetohydrodynamic conduction machines.
Transverse current MHD conduction generators for AC power generation
INCOMPRESSIBLE FLUID↗
Instrument sequentially samples ac signals from several accelerometers
Scanner circuit sequentially samples the ac signals from accelerometers used in conducting noise vibration tests, and provides a time-averaged output signal. The scanner is used in conjunction with other devices for random noise vibration tests.
Chapman, C. P.↗