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  • 1. Learning Curve Approach to Reliability Monitoring

    Publication Year: 1964, Page(s):563 - 566
    Cited by:  Papers (103)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (775 KB)

    Several different and complex electromechanical and mechanical systems are shown to have remarkably similar rates of reliability improvement during system development. These similarities provide the basis for a learning curve which can be used to monitor development progress, predict growth patterns, and plan programs for reliability improvement. View full abstract»

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  • 2. "Computer Operational Systems Engineering for an Orbiting Satellite and Its Command and Telemetry Data Acquisition Station"

    Publication Year: 1964, Page(s):193 - 203
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2390 KB)

    The important aspects of operational systems engineering for a typical earth-orbiting satellite are highlighted. Focus is on the use of a general purpose digital computer at a command and telemetry data acquisition station. The operational concept utilizes the computer equipment both on-line, in near real time, and off-line to assess satellite performance for operational purposes. The operational ... View full abstract»

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  • 3. Design Philosophy of an Automatic Checkout and Launch System for a Drone

    Publication Year: 1963, Page(s):538 - 546
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2251 KB)

    A system is described by means of which a drone can be automatically checked out and launched from a remote location over a period of less than 12 minutes from "go-ahead" by relatively low skilled personnel. The features of the system are its simplicity, the rapidity with which the complete sequence is accomplished and the ease of fault recognition. One of the more interesting design problems solv... View full abstract»

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  • 4. Magnetostatic Measurement of Spacecraft Magnetic Dipole Moment

    Publication Year: 1964, Page(s):412 - 419
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1079 KB)

    This paper describes a technique for determining the magnetic dipole moment of a spacecraft by sampling its magnetic field at constant radius. Integral equations relating magnetic field samples to the three-axis dipole components are derived from a multipole expansion of the distributed magnetic source. Included in this paper are a description of a magnetic test facility and a sample calculation d... View full abstract»

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  • 5. An Optically Pumped Nuclear Magnetic Resonance Gyroscope

    Publication Year: 1963, Page(s):1107 - 1110
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2072 KB)

    A model of a nuclear gyroscope has been constructed and operated which obtains its space reference information from observations of the dynamic behavior of atomic nuclei. The instrumentation results from the first practical application of nuclear magnetic resonance techniques to the problem of establishing reference with respect to inertial space. By means of simultaneous observation of signals fr... View full abstract»

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  • 6. An FM-CW Radar for Simultaneous Three-Dimensional Velocity and Altitude Measurement

    Publication Year: 1963, Page(s):17 - 37
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4002 KB)

    An FM-CW radar is described which simultaneously furnishes three-dimensional velocity and absolute altitude information. The velocity is measured by means of a low frequency FM-CW Doppler technique and the altitude information by means of phase comparison on one of the sidebands of the received spectrum. The optimum radar parameters required for the two functions are completely compatible. Use of ... View full abstract»

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  • 7. AC Motor Protection

    Publication Year: 1963, Page(s):1137 - 1144
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2075 KB)

    The paper will cover the control of ac polyphase low voltage motors, rated 600 volts and below, and will discuss protective features available for the control of starting and operating. View full abstract»

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  • 8. Rotating Machinery Utilizing Superconductors

    Publication Year: 1964, Page(s):826 - 842
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2785 KB)

    The properties of superconducting materials appropriate for a discussion of their application in rotating machines are cited. The electrical, mechanical, and thermal losses that will occur in superconducting rotating machines are defined and estimated. The requirements for maintaining the cryogenic environment are given in terms of refrigerant use and in terms of refrigeration. Some estimates are ... View full abstract»

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  • 9. Currents and Voltages in the Power Switches of Static Inverters

    Publication Year: 1964, Page(s):998 - 1005
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (869 KB)

    Static inverters are used in many applications where continuous voltage must be converted to alternating voltage, such as no break and emergency ac power supplies. Switching semiconductors are the usual means of producing the alternating voltage. Currents in the semiconductors and the dc source are of interest to both the designer and user of the inverter. Analytical means are used to derive quant... View full abstract»

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  • 10. Free Running-Switching Mode Power Regulator: Analysis and Design

    Publication Year: 1964, Page(s):1171 - 1180
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1245 KB)

    Nonlinear servo analysis is applied to a free running regulator. Steady state performance is determined using a modified sinusoidal describing function approach. Gain-phase plots provide a graphical analog. Transient analysis is accomplished using phase plane techniques. Complete analysis - steady state and transient -- is performed for a basic regulator and for an active output filter version. Re... View full abstract»

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  • 11. Optimization of Rotor Tooth Shape of Aerospace Homopolar Alternators

    Publication Year: 1965, Page(s):12 - 17
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (833 KB)

    In the first part of the optimization process, the width and depth of the rotor tooth are incrementally varied for two airgap radial lengths and two field excitations. In the second part the tooth shape that would yield a sinusoidal voltage is investigated. The numerical results are represented by curves for the no-load radial flux density in a 95 KVA, 120/208 v 3,400 cps alternator. The results s... View full abstract»

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  • 12. Accuracy of Position Determination in Star Tracker Tubes

    Publication Year: 1963, Page(s):54 - 57
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1152 KB)

    The focusing properties of star-tracker tubes can be summarized by a quantity, called rise distance, which measures the sharpness of transition between light and dark areas. Measurements showing the values achieved to date are presented. It is then discussed how shortcomings of the rise distance can be overcome by proper choice of the data handling process, i.e., the output circuitry. It is pointe... View full abstract»

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  • 13. Optimizing Inertial Reaction Wheels for Spacecraft Slewing and Attitude Control

    Publication Year: 1964, Page(s):444 - 451
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1274 KB)

    This paper deals primarily with a technique for designing and optimizing a slewing (re-orientation) inertia wheel. The approach, although patterned around NASA's Orbiting Astronomical Observatory, is general and can be tailored to meet the requirements of most spacecraft utilizing inertia wheels for changing their orientation. A method for slewing the spacecraft is briefly discussed and it is show... View full abstract»

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  • 14. Approximate Analysis of the Operation of Thermoelectric Generators with Temperature Dependent Parameters

    Publication Year: 1964, Page(s):4 - 9
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (828 KB)

    An approximate analysis of the operation of thermoelectric generators with temperature dependent parameters is presented. Expressions for the optimum current and optimum area to length ratio are obtained for the cases of maximum efficiency and of maximum power output per unit volume. The principal assumption made in the analysis is that the temperature distribution along the legs of the generator ... View full abstract»

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  • 15. Anisotropic Superconducting Properties of NbSe2

    Publication Year: 1964, Page(s):816 - 821
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1095 KB)

    Low temperature NbSe2 has a layer structure of the NbS2 type. It is superconducting with a zero field transition temperature of about 6.0°K. Critical current measurements were made on single crystals at 4.20°K in fields up to 7250 gauss. The variation in critical current as a function of orientation in a constant applied magnetic field is interpreted in terms of demagnetization at low fields and... View full abstract»

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  • 16. Modelling of Radiation Effects in Semiconductor Devices and Circuits

    Publication Year: 1965, Page(s):372 - 378
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1131 KB)

    Nuclear radiation effects on semiconductor devices and circuits are modelled using flowgraph techniques. The usefulness and applicability of a model adequate for both transient and permanent radiation effects in devices and circuits is based on several recent developments in modelling techniques: ?? the lumped-parameter semiconductor diffusion-controlled model. ?? the systematic formulation of equ... View full abstract»

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  • 17. Eddy Current Losses in the Rotor Teeth of Aerospace Homopolar Alternators

    Publication Year: 1965, Page(s):24 - 31
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1067 KB)

    The eddy current losses in rotor tooth-heads of homopolar alternators are generally high and a limiting factor of design. A method is established to calculate eddy current losses in rotor designs with titanium wedges in the intertooth space. A computer program solves numerically the boundary value problem that yields the electric field intensity in the conducting materials. Inverter loads on an ex... View full abstract»

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  • 18. Uninterrupted Power Supply - Synchronous Motor/Generator Type

    Publication Year: 1963, Page(s):1031 - 1042
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3394 KB)

    This paper discusses the development of a type of engine-driven generating unit which supplies uninterrupted power to a critical load, when the commercial or prime power supply fails. This particular type of unit uses the principle that a synchronous electric machine will act as a motor when prime power is available and the same machine will act as a generator when driven by an inertia system or a... View full abstract»

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  • 19. Three and Four Coil Systems for Homogeneous Magnetic Fields

    Publication Year: 1964, Page(s):36 - 45
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (991 KB)

    In the magnetic testing of satellites and spacecraft, very homogeneous fields are needed. One method of obtaining such fields is to use a number of circular coils on a common axis. The parameters of the best three- and four-coil systems were obtained by making zero as many terms as possible of the series for the field along the axis of the system. The parameters are presented in the form of tables... View full abstract»

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  • 20. Apollo Guidance and Navigation Electronics

    Publication Year: 1965, Page(s):354 - 362
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2952 KB)

    The designers of the Apollo G&N system adopted a conservative but flexible design philosophy. In this paper the development of the guidance computer is described which typifies the application of the design approach throughout the development of the system. The computers have demonstrated a mean-time-between-failure (MTBF) of four to five times that predicted. The success of the design approach ha... View full abstract»

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  • 21. Solar Dynamic Power System Application to Manned Space Stations

    Publication Year: 1964, Page(s):874 - 887
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5842 KB)

    This paper describes a solar-powered, closed-Brayton-cycle power system and its application to manned space stations. The power system has been designed to meet the following objectives: 1. Utilization of presently available design techniques and standard materials. 2. High reliability. 3. Short development period. 4. Low costs. 5. Adaptability for launch by the Atlas, Titan, and Saturn class vehi... View full abstract»

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  • 22. Analytical vs. Monte Carlo Methods of Calculating Reliability

    Publication Year: 1963, Page(s):730 - 734
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (719 KB)

    Differential equations are derived to obtain analytically the reliability and mean life of a simple system with redundancy and replacement. They are solved for a simple case. The reliability and mean life of the system in more complex cases is obtained using a Monte-Carlo method. An excellent agreement between the two methods is obtained in the simple case. Increases by a factor of five in system ... View full abstract»

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  • 23. Influence of Airgap Curvature on the Flux Distribution in Saturated Homopolar Alternators

    Publication Year: 1964, Page(s):904 - 912
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1366 KB)

    The two dimensional, non-linear potential equation for saturated homopolar generators is established in circular cylindrical coordinates. The boundary conditions are discussed. The partial differential equation and the boundary conditions are transformed into difference form as preparation for a computer program. A non-uniform polar system of meshes is described and the difference formulae for the... View full abstract»

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  • 24. Capillary Membrane Hydrogen-Oxygen Fuel Cell System for Space Vehicle Application

    Publication Year: 1963, Page(s):874 - 883
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1344 KB)

    This paper describes the development of a simple, effective method of electrolyte concentration control for the Allis-Chalmers Capillary Membrane fuel cell. The method, designated as Vapor Pressure Control, operates on the change in electrolyte vapor pressure which occurs over an operable range of electrolyte concentrations. Stability of cell operation with the method is shown theoretically and is... View full abstract»

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  • 25. A Data Collection and Analysis System

    Publication Year: 1963, Page(s):1438 - 1445
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1956 KB)

    A system has been provided for use in environmental checkout of instrumented satellites. Included is an on-line computer for real time analysis and monitoring. Centralization of data flow permits handling of several large scale experiments simultaneously. Operation is on a 24 hour day basis. The stringent reliabilitygoals have been met, demonstrating the feasability of this type of coordinated dat... View full abstract»

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  • 26. Ferrite Loaded Antennas for Aerospace Applications

    Publication Year: 1965, Page(s):489 - 494
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2420 KB)

    The effects of ferrite loading on the characteristics of the rectangular cavity slot antenna, the equiangular spiral antenna, and the log conical spiral antenna are studied. The object is size and weight reduction and this is accomplished at the expense of bandwidth and/or efficiency. The characteristics of the rectangular cavity slot antenna are analyzed and compared with experimental data. The o... View full abstract»

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  • 27. An Approach to Maintainability and Ground Checkout of Aerospace Electrical Power Systems

    Publication Year: 1963, Page(s):550 - 557
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2559 KB)

    Present aerospace electrical systems have not been designed for maximum maintainability, and no really effective maintainability program has yet been established in the industry. A definition of maintainability requirements for aircraft electrical systems and examples of recent efforts to reduce the maintainability cost of present electrical systems are given. Probable future designs are discussed... View full abstract»

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  • 28. Flat Plate Solar Thermoelectric Generator Design Analysis

    Publication Year: 1965, Page(s):664 - 673
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1376 KB)

    A general design procedure is presented which allows a rapid graphical solution of the performance of the generator for a matched load condition. Furthermore, its performance is evaluated for solar concentrations of 1 to 2 times the solar constant, segmenting of the thermoelements with compatible Bi2Te3 cooling material, increase of the area of the radiator plate over that of the collector plate, ... View full abstract»

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  • 29. Specification and Design of Established Reliability Power Relays

    Publication Year: 1965, Page(s):598 - 602
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (936 KB)

    This paper covers work on established reliability for power relays by the National Association of Relay Manufacturers and an Air Force appointed committee working cooperatively with SAE Subcommittee A-2R. A practical means of specifying established reliability for power relays using MIL-R-6106 as a basic specification is proposed. Life cycles from qualification, acceptance and requalification test... View full abstract»

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  • 30. Umbilical Arms for the Saturn V Vehicle

    Publication Year: 1963, Page(s):326 - 336
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1837 KB)

    Umbilical arm design for the Saturn V vehicle is presented with emphasis on the arm servicing the S-IVB stage aft position. Arm criteria are outlined, followed by a description and operation of the launch equipment, in this order:the hinged, truss structure; the arm retraction system; the withdrawal mechanism; and the extension platform. Systems equipment and reliability, an important result of th... View full abstract»

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  • 31. A New Concept for Missile Ground Support Interconnecting Assemblies

    Publication Year: 1963, Page(s):1153 - 1160
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2606 KB)

    This paper covers an improved and novel approach to missile cable assemblies. The only metal parts employed are those required for conductivity, such as connector contacts, copper wire, etc. The technique required for fabrication of these assemblies is relatively simple, will not be proprietary, yet this end product is practically indestructible and tamper proof. Preliminary surveys indicate consi... View full abstract»

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  • 32. Lunar Surface Suit Telemetry and Voice Communications

    Publication Year: 1965, Page(s):484 - 488
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2113 KB)

    When an extra-vehicular suited astronaut steps onto the hostile environment of the lunar surface, he is essentially operating in his own personal spacecraft - the extra-vehicular suit system. The primary function of this system is of course, life support, but at least secondary in importance is the communications link with the lunar spacecraft and earth. Another function supplied by the system is ... View full abstract»

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  • 33. The Apollo Spacecraft Electrical Power Distribution System

    Publication Year: 1964, Page(s):472 - 477
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (807 KB)

    North American Aviation, Inc., is designing and building the Apollo Command and Service Modules at its Space and Information Systems Division, Downey, Calif., under contract to the National Aeronautics and Space Administration's Manned Spacecraft Center, Houston, Texas. The Apollo Spacecraft Command and Service Module obtains primary electrical energy from fuel cells for flight phases until earth ... View full abstract»

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  • 34. Transfer Characteristics of Brushless Aircraft Generator Systems

    Publication Year: 1964, Page(s):913 - 928
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2216 KB)

    This paper analyzes the rotating-rectifier type aircraft generator with its exciter and rectifier from the standpoint of its role as an element in a closed loop regulating system. It discusses the transfer characteristics of the brushless generator system in relation to its normal design parameters and its performance characteristics and presents data, largely in graphical form, for use in calcula... View full abstract»

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  • 35. Spacecraft Electrical System Analysis

    Publication Year: 1964, Page(s):623 - 629
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1159 KB)

    The importance of highly reliable operation of spacecraft systems requires detailed analyses of such systems to ensure that they are adequately designed to perform their intended functions. Various types of electrical systems analyses (Boolean Simulation, DC Circuit Worst Case, Small and Large Signal Transistor Transients, and Statistical) are described and discussed. Included are recommendations ... View full abstract»

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  • 36. Performance - Endurance Testing of the Cesium Vapor Thermionic Cavity Generator

    Publication Year: 1964, Page(s):688 - 701
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3460 KB)

    Completion of the Performance - Endurance solar test series climaxed an eleven month solar experimental program in support of the "Cavity Vapor Generator" (an assembly of 3 cesium vapor thermionic converters), at the G. E. Spacecraft Dept. Solar Test Facility, Phoenix, Arizona. The program included three segments: 1) calibration of the system components, 2) evaluation of the basic performance of t... View full abstract»

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  • 37. Cooling of Avionic Equipment by Thermoelectric Methods

    Publication Year: 1964, Page(s):702 - 710
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1327 KB)

    This paper presents the results of a study conducted to determine the use of a centralized thermoelectric cooling system to provide cooling for military avionic equipment. The system considered is a recirculatory system capable of cooling an avionic equipment compartment or a number of avionic equipment components from the centralized cooler. The results of the study indicate that the system is co... View full abstract»

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  • 38. A Thin Film Micro Thermocouple R.F. Energy Detector for Electro Explosive Device Wiring

    Publication Year: 1965, Page(s):647 - 651
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (733 KB)

    A thin film thermocouple detector has been developed for use in the safety evaluation of electro explosive device wiring. The detector was fabricated using vacuum deposition techniques. Bismuth and tellurium were used as the thermoelectric materials. The resultant device has a thermoelectric power of 220 microvolts/??C and a response time of less than 17 milliseconds. Testing and calibration were ... View full abstract»

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  • 39. Ground Support Equipment for the UK-2/S-52 International Satellite

    Publication Year: 1963, Page(s):374 - 381
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5167 KB)

    This paper explains the problems associated with the determination of the requirements for the Ground Handling and Special Test Equipment for the UK-2/S-52 International Satellite. The spacecraft is instrumented with three main experiments for ionospheric research. Design methods that satisfy the requirements of the normal and special handling procedures that are encountered from the factory to th... View full abstract»

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  • 40. Thermionic Energy Converters

    Publication Year: 1963, Page(s):30 - 33
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (796 KB)

    The present state-of-the-art for thermionic energy converters and the basic operating characteristics of various designs are reviewed. Problem areas faced by designers of converters are identified. Recent development trends are pointed out. It is concluded that extensive more basic and applied research must be accomplished in thermionic technology and high temperature materials before practical ap... View full abstract»

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  • 41. Special Design Considerations for the Apollo Spacecraft Electrical System

    Publication Year: 1964, Page(s):467 - 471
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (676 KB)

    In the Apollo spacecraft electrical power system weight is at a premium. Energy loss actually increases the system weight by added fuel requirements. A new type of switch gear was developed for the fuel cell system which eliminates the use of circuit breakers, diodes and uses instead solid state relay operated switches. Consideration was also given to use saturable reactor type current metering in... View full abstract»

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  • 42. Design and Laboratory Evaluation of an Electrical Power System for a Medium to Synchronous Altitude Orbiting Satellite

    Publication Year: 1963, Page(s):1335 - 1350
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5382 KB)

    A long life electrical power system adaptable to the 200 to 600 watt power range has been designed and evaluated for a space satellite in a medium to synchronous altitude earth orbit. The design approach included utilization of an analog computer in the initial stages to study the dynamic performance of the system consisting of an oriented solar array, battery charge/load regulator, nickel-cadmium... View full abstract»

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  • 43. The Engineer's Responsibilities in Technical Documents

    Publication Year: 1964, Page(s):1070 - 1072
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (555 KB)

    The engineer today has a greater responsibility than ever before in his contribution to technical documentation. This responsibility has a number of facets. First, there is the obligation to himself in the furtherance of his career. Then there is the duty to his company in the fulfillment of his assignments. Finally, there is his accountability to the scientific community. It is the purpose of thi... View full abstract»

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  • 44. Modes of Failure of Electrical Connectors

    Publication Year: 1964, Page(s):558 - 562
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1363 KB)

    This paper discusses techniques for evaluating and predicting a connector's performance by appling the principles of stress analysis to individual sub-assemblies which ultimately make up a complete, functioning connector. The author discusses the relationship of environment to material and surmises that the resultant of environmental conditions is stress in materials which may ultimately cause a f... View full abstract»

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  • 45. Theory and Performance of Flat Plate Solar Thermoelectric Generator for Near-Earth Orbits

    Publication Year: 1965, Page(s):652 - 663
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2575 KB)

    The theory, design, fabrication, and testing of flat plate thermoelectric generator panels for nearearth orbits are described. These panels are capable of producing 3 watts/ft2 and 15 watts/ pound when operating in a near-earth orbit. The potential advantages of these solar energy converters, as compared to photovoltaic cells, are discussed and include higher radiation resistance, improved watts/p... View full abstract»

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  • 46. AC Generating System for Executive Aircraft

    Publication Year: 1963, Page(s):629 - 638
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1030 KB)

    This paper describes an ac generating system designed for a twin jet executive aircraft. The system employs two variable frequency 9/21 kva generators to supply power for aircraft surface heating, fuel pumps, trim motor, and instruments. The system is unique in private executive aircraft in that it is automatic and employs static circuitry for the control and the conversion of variable frequency p... View full abstract»

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  • 47. The Integration and Management of Human Engineering for Electronic and Electrical System Design

    Publication Year: 1965, Page(s):322 - 332
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6441 KB)

    This paper points out the primary human engineering requirements now being called out in the new government program management documents. The primary points of integration of human engineering to establish man machine design and test requirements are indicated. A recommended composition of various teams and management of this discipline in industry is presented as a means of complying with system ... View full abstract»

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  • 48. Electrical Switchgear for Large Nuclear Space Power Systems

    Publication Year: 1965, Page(s):552 - 559
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3678 KB)

    The basic technology has been developed for high temperature (>1000??F) radiation resistant (>109 rad) space power switchgear under NASA's contract NAS 3-2546 with General Electric. The vacuum insulated switch has been selected to meet these requirements and the megawatt level high frequency (2000 cps) application. Refractory electrodes, tested at 1200??F in a radiant heated ceramic chamber, have ... View full abstract»

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  • 49. Control Electronics System for the University of Wisconsin OAO Experiment

    Publication Year: 1964, Page(s):125 - 134
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2735 KB)

    This control electronics system provides for remote control programming of variable optics of seven telescopic instruments which form a major payload for the first Orbiting Astronomical Observatory (OAO). Controlled variables include measurement channel gain, viewing angle, collimation, and spectral band. Features of the electronic system include: (1)Selective redundancy of command code bits, use ... View full abstract»

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  • 50. A 30 x 5 Microelectronic Commutator

    Publication Year: 1964, Page(s):68 - 73
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1857 KB)

    A 30 x 5 microelectronic commutator was designed and constructed for multiplexing sensor signals into an IRIG telemetry format. Logic control and selection are provided by 23 Texas Instruments solid circuits, signal transmission is via diode gates, and power conversion is internal. Dissipation is 1 watt, weight less than 6 ounces, and dimensions are 3 x 2 x 0.9 cubic inches. A complete series of t... View full abstract»

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Aims & Scope

This Transactions ceased publication in 1965. The new retitled publication is IEEE Transactions on Aerospace and Electronic Systems.

Full Aims & Scope