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Includes the top 50 most frequently accessed documents for this publication according to the usage statistics for the month of

  • Learning Curve Approach to Reliability Monitoring

    Publication Year: 1964, Page(s):563 - 566
    Cited by:  Papers (107)
    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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  • Investigation of High-Frequency Power Conversion and Generator Techniques

    Publication Year: 1965, Page(s):411 - 422
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2218 KB)

    This paper reports on an investigation of techniques concerned with development of efficient and lightweight power conversion units for use with space power systems currently being developed. Results of the investigation provide an insight into the best system approach for supplying high frequency power. The effort was accomplished as part of Contract AF33(657)-11049 for the Research and Technolog... View full abstract»

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  • 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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  • Saturn S-IV Cryogenic Weigh System Part I: Propellant Utilization

    Publication Year: 1965, Page(s):144 - 151
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1340 KB)

    In order to achieve maximum vehicle efficiency, it is essential that the vehicle propellants be loaded to desired values and that these propellants approach simultaneous depletion at the end of powered flight. To accomplish precise loading and assure minimum residuals, a highly accurate and repeatable, vehicle located, propellant management (PM) or propellant utilization (PU) system must be used. ... View full abstract»

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

    Publication Year: 1964, Page(s):1171 - 1180
    Cited by:  Papers (27)
    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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  • New Solid Lubricants: Their Preparations, Properties and Potential for Aerospace Applications

    Publication Year: 1964, Page(s):457 - 466
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3235 KB)

    A group of compounds are described whose physical and chemical properties make them attractive solid lubricant candidates for aerospace applications. The compounds are diehalcogenides of the Group VB and VIB metals niobium, tantalum, molybdenum and tungsten. Through a description and discussion of their frictional characteristics and other pertinent properties, the potentials that they possess for... View full abstract»

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  • An Optically Pumped Nuclear Magnetic Resonance Gyroscope

    Publication Year: 1963, Page(s):1107 - 1110
    Cited by:  Papers (9)
    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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  • 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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  • An Integrated Approach to Aerospace Motor Design

    Publication Year: 1963, Page(s):847 - 854
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2079 KB)

    This paper discusses some of the requirements which must be met by motors for aerospace applications, and presents an integrated approach to the design of a complete line of machines to meet these needs. Work carried out during the design study, design integration, and final design phases of the program is described. View full abstract»

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  • Electrical Discharges at Altitudes between 70,000 and 250,000 Feet

    Publication Year: 1965, Page(s):242 - 246
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (799 KB)

    Experimental measurements of electrical discharges caused by corona, glow discharges, and voltage breakdown were made under conditions encountered in aerospace vehicles operating within the 70,000 to 250,000 foot altitude range. All measurements were made in gases commonly used to pressurize spacecraft electrical and electronic compartments: nitrogen, nitrogenoxygen mixtures, and normal atmosphere... View full abstract»

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  • Vapor Cycle Coolant Requirements for Nuclear Space Power Plants

    Publication Year: 1963, Page(s):855 - 863
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1626 KB)

    This paper includes a discussion of choice of coolants in the design of nuclear space power plants. Among the specific problems discussed are loss of coolant through meteoroid penetration, compatibility between coolant and construction materials at high temperatures, probability of damage by meteoroids and fabrication problems associated with large, lightweight, hermetically sealed structures whic... View full abstract»

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  • Reliable Energy Conversion Power Systems for Space Flight

    Publication Year: 1965, Page(s):543 - 549
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1828 KB)

    Low-voltage converter-regulators provide the key to the utilization of new energy conversion power sources in future space applications. It is now possible to use transistor-converters to boost the low voltage level of thermionic, fuel cell, thermoelectric, and electro-chemical sources to a higher more useable regulated voltage. Improved low-voltage converter-regulators have efficiencies between 7... View full abstract»

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  • Comparison of Aircraft Electrical Systems to Supply 20 KVA Variable Frequency and 5 KVA Constant Frequency

    Publication Year: 1964, Page(s):971 - 974
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1395 KB)

    This paper discusses the suitability of four different generating systems for a hypothetical aircraft requiring 25 KVA of ac electric power, 5 KVA of which must be at constant frequency. The systems are examined in terms of weight and relative reliability using data representative of similar components on existing applications. The lightest, most reliable, system of those compared supplies all of ... View full abstract»

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  • Tunnel-Diode-Loaded-Dipole Antenna

    Publication Year: 1964, Page(s):297 - 307
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1475 KB)

    This paper presents a study of some properties of a tunnel-diode-loaded-dipole antenna. These include gain, noise performance, stability, and reradiation characteristics. In essence the analysis is made by applying ordinary network theory to an equivalent network of the loaded dipole antenna; however, the treatment stresses the difference between the combined antenna and amplifier (antennafier) an... View full abstract»

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  • Optimizing Inertial Reaction Wheels for Spacecraft Slewing and Attitude Control

    Publication Year: 1964, Page(s):444 - 451
    Cited by:  Papers (1)
    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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  • 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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  • 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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  • Aerospace Composite-Rotor Induction Motors

    Publication Year: 1965, Page(s):18 - 23
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (896 KB)

    The theoretical analysis based on electromagnetic field theory is given for high speed aerospace induction motors whose solid rotor is provided with layers of highly permeable and highly conductive materials. Numerical solutions indicate that the efficiency of the rotor as compared with a solid iron rotor is increased considerably. The torque-speed characteristic of the composite rotor motor rises... View full abstract»

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  • Dynamic System Analysis for Electrical Power Systems

    Publication Year: 1965, Page(s):107 - 120
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1659 KB)

    This paper analyzes the rotating rectifier type aircraft generator system so that a digital computer study of system transient response may be made. A detailed analysis of the generator is made using Park's equations. This analysis results in a mathematical model which is quite easily handled by a digital computer. A single time constant transfer function is used for the exciter-rectifier which ha... View full abstract»

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  • A Multi-Command Decoder for Satellite Applications

    Publication Year: 1964, Page(s):103 - 109
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3276 KB)

    This decoder accepts eight tone frequencies, from which it will produce twenty-one separate outputs. It meets all NASA requirements for address-execute command equipment.' The design and construction of the decoder will be discussed. Several circuit innovations will be described, including a solid state address switch with a slow release feature, a noise immune tone filter, and a novel d-c actuate... View full abstract»

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  • RF Closed Loop Checkout of the Agena Vehicle

    Publication Year: 1963, Page(s):910 - 923
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1622 KB)

    On a given missile range, it may be necessary to perform Radio Frequency tests on missiles or space vehicles. If there are many complexes on the launch base, RF transmissions from a complex may interfere with the RF tests on another complex. If RF facilities external to the complex must be used for all RF tests, only one complex at a time may perform RF checkout procedures. A requirement may also ... View full abstract»

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  • Performance of a Variable Speed Constant Frequency Electrical System

    Publication Year: 1964, Page(s):957 - 970
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4271 KB)

    This paper presents and discusses the performance data obtained in testing a 30 KVA aircraft generating system of the variable speed constant frequency (VSCF) type. The observed test results are compared with typical data from more conventional generating systems employing hydraulic constant speed drives and constant speed generators. Areas of performance such as voltage and frequency control, dc ... View full abstract»

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  • Magnetic Particle Clutch Type Linear Electro-Mechanical Servo Actuator Engine Gimbal Control

    Publication Year: 1964, Page(s):440 - 443
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (590 KB)

    First Page of the Article
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  • A Magnetic Unloading System for an Ultra Stable Unmanned Spacecraft

    Publication Year: 1964, Page(s):420 - 427
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2542 KB)

    Many Magnetic Control or Unloading Systems have been presented at technical conferences over the past few years. Now one is a reality - a production line item - in the NASA-Grumman Orbiting Astronomical Observatory (OAO). The OAO magnetic control system utilizes the earth's magnetic field - itself a source of disturbance torque - as a spatial lever arm, upon which to transfer accumulated angular m... View full abstract»

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  • 2000??F Power Conductors for Aerospace Applications

    Publication Year: 1965, Page(s):284 - 289
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2271 KB)

    Twenty-two gage and 12-gage power conductors were developed using rhodium power wires, magnesium oxide insulation, platinum sheathing, and alumina end-seals. The conductor systems maintained their electrical integrity through a variety of environmental tests, including vibration, mechanical shock, acceleration, humidity, vacuum, and nuclear radiation. The wires were operated successfully at 2000??... View full abstract»

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  • Integrated Micropower Circuits

    Publication Year: 1964, Page(s):235 - 240
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (897 KB)

    A study program was conducted to provide guidelines for the design of integrated micropower logic circuits. Constraints of maximum resistance, propagation time, and minimum power at frequencies below 150 kcps were imposed. Complementary Resistor-Diode-Transistor Logic offered the best trade-off performance within these constraints and state-of-the-art fabrication technology. Compatible "NAND and N... View full abstract»

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  • Power Transmission at High Frequency

    Publication Year: 1965, Page(s):402 - 410
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1183 KB)

    This paper presents data for power transmission up to a frequency of 5000 cycles per second and enables calculation of the resistance and inductance of a transmission line delivering high frequency power. Classical expressions are involved. Graphs and data are presented from which values can be selected and the transmission line parameters easily determined. A knowledge of these parameters enables... View full abstract»

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  • A Phased Array for Space Applications

    Publication Year: 1963, Page(s):314 - 318
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1666 KB)

    This paper briefly reviews the fundamentals of phased array operation. Array systems are categorized as preamplifier and post-amplifier beam-forming techniques. The relative advantages and disadvantages of each are discussed, as are considerations in space applications. Several exemplary array antenna configurations are also discussed. Particular comment is made on the principal environmental cons... View full abstract»

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  • Compatibility and Performance Testing of Communications Systems

    Publication Year: 1965, Page(s):139 - 143
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (794 KB)

    During the normal progress of design, fabrication, and integration of communications subsystems for spacecraft and for ground installations, every effort is made to assure that the equipment meets certain specifications relating to performance, environment, reliability, and interface capability. These specifications are based on the best available definition of requirements and interface character... View full abstract»

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  • Radio Telemetry of Stagnation Pressure from a Wind Tunnel Model Magnetically Supported in Supersonic Flow

    Publication Year: 1964, Page(s):10 - 15
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2077 KB)

    During a set of aerodynamic tests in a Mach number 2. 4 wind tunnel, it was proven feasible to telemeter stagnation pressure measurements from within a magnetically suspended, ferromagnetic model. State-of-the-art, f-m radio telemetry, developed for hypervelocity range use, was employed. Although data at the outset of each of three trials reflect errors of less than three percent, inordinate frequ... View full abstract»

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  • Transient Response Analysis of a Nonlinear Sampled-Data Control System

    Publication Year: 1964, Page(s):597 - 604
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1192 KB)

    Transient response and limit cycle characteristics associated with a wide range of nonlinear sampled-data systems can be rigorously computed by implementing a straightforward numerical approach. Based upon the piecewise-linear analytical technique, a set of continuous open-loop equations are formulated to describe all analog system components. Digital and/or purely numerical processes are defined ... View full abstract»

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  • High Temperature Effects on Ceramic-Insulated Thermocouple Wires

    Publication Year: 1964, Page(s):452 - 456
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    Conductors transmitting low voltage signals through unconditioned high temperature environments have been experimentally investigated. Measurements of insulation resistance, open-circuit voltage, and signal attenuation were taken, for several chromel-alumel, metal-sheathed, ceramic-insulated thermocouple wires at temperatures approaching 2000°F. Test results show that: insulation resistance calcu... View full abstract»

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  • Stored-Program PCM Telemetry Ground Stations ... A New Class of Data Processors

    Publication Year: 1964, Page(s):176 - 186
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2724 KB)

    The character of time-multiplexed pulse-code-modulation telemetry data is reviewed here, and requirements for demultiplexing and processing are considered. Salient design features of a high-performance "ground station" are presented. Reasons are given for the use of specialized system elements for recognition of synchronization patterns, tagging of samples with source identifiers, distribution to ... View full abstract»

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  • 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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  • Supplier Selection and Control for Reliability

    Publication Year: 1963, Page(s):564 - 568
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1155 KB)

    Procuring parts with a guaranteed reliability is a major problem to most equipment manufacturers today. Until the DARNELL recommendations are put into our military specifications and until vendors have qualified to supply to these requirements, the problem will still be with us. During this interim period, equipment manufacturers are preparing and procuring to their own individual specifications; ... View full abstract»

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  • High-Temperature Conductor Materials Development for Aerospace Applications

    Publication Year: 1965, Page(s):290 - 295
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1721 KB)

    Conductor materials for aerospace application should have low resistivity, low density, high strength, and ductility over the temperature range of application. Our work on the development of such materials has shown that the three most promising high-temperature conductors covering both oxidizing and nonoxidizing environments are zone-refined rhodium (< 1600??C), dispersion-hardened platinum (< 15... View full abstract»

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  • Space Maintenance of Nuclear Rocket Propulsion Vehicles

    Publication Year: 1963, Page(s):1270 - 1282
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1556 KB)

    Long duration space mission success could depend upon the extent to which the crew can perform work outside the spaceship. Study results presented show that space suits are not the whole answer. Evaluation of worker requirements leads to a maintenance capsule concept. Capsule application is depicted in contrasting situations: Repair of meteoroid damage, a minor but vital task which can occur anywh... View full abstract»

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  • Theoretical Relationship between Spectral and Diffuse Density of Photographic Film and Its Effect on Using Photographic Film as a Diffraction Grating

    Publication Year: 1964, Page(s):227 - 234
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (852 KB)

    A statistical analysis is presented, which gives the relationship between the spectral and diffuse transmissivity of photographic film. The validity of this theory was checked by experimental measurements and the agreement was excellent for all cases where the basic assumptions are valid. The theory still gives an insight into the experimental result obtained when these assumptions are not valid. ... View full abstract»

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  • 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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  • Structural and Electrical Performance of a Large Concentrating Solar Cell Panel

    Publication Year: 1964, Page(s):739 - 746
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2231 KB)

    A large area concentrating solar cell panel, nominally 36 inches wide and 75 inches long, was designed and constructed to meet the requirements of a typical spacecraft environmental specification. The structural integrity was verified by laboratory structural tests, and the electrical-optical performance was determined by solar tests. The concentrating panel weighed 0.78 lbs/sq ft, developed 8.17 ... View full abstract»

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  • The Application of Circular Arrays to Spacecraft Antenna Problems

    Publication Year: 1964, Page(s):272 - 277
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2064 KB)

    This paper is concerned with the problem of obtaining nearly omnidirectional patterns in one plane of large conducting bodies having circular cross sections. To define the problem in terms of discrete sources, calculations were made for typical element patterns F((ϕ') = 1, F(ϕ') = 1 + cos ϕ', and F(ϕ') = 1 + 1/2 cos ϕ'. Array circumferences Zλ from 2... View full abstract»

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  • A Digital System for the Acquisition and Analysis of Random Data

    Publication Year: 1965, Page(s):39 - 46
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1110 KB)

    Statistical methods of analysis are used to obtain important physical properties of random signals. A description is given of the system which was designed for use in the Propulsion Wind Tunnel, Arnold Engineering Development Center, to provide the necessary signal conditioning and the analog-to-digital conversion at a rate high enough to prevent mixing of the spectral densities. The overall syste... View full abstract»

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  • Multi-Component Test Fixtures for Solid Rocket Motor Testing

    Publication Year: 1963, Page(s):86 - 98
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1955 KB)

    In the static testing of large solid rocket motors, particularly those equipped with a form of steering system, a multiple degree-of-freedom test fixture is normally employed. This paper discusses multi-component test fixtures within a basic conceptual framework. A qualitative description of the specific form of mechanical system used is given. The choice of force cell measurement devices and asso... View full abstract»

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  • 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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  • Self-Test of Digital Evaluation Equipment

    Publication Year: 1963, Page(s):1283 - 1296
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2431 KB)

    Digital Evaluation Equipment (DEE) is a programmer-controlled concept for building block test equipment. A particular system consists of a computer/controller, measuring system, stimulus generators and power supplies. DEE self-test utilizes a dual function concept; (1) automatically programmed testing, and (2) individual self-test of each building block. Since a DEE system encompasses a large test... View full abstract»

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  • Rotating Machines for Extreme Environments

    Publication Year: 1965, Page(s):620 - 627
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1981 KB)

    This paper is an approach to materials selection and design considerations of rotating machines subjected to difficult environmental conditions. View full abstract»

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  • Fiber Reinforced Ceramics for Electromagnetic Window Applications

    Publication Year: 1965, Page(s):495 - 501
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2352 KB)

    This paper presents the results of a program for the development of aircraft and missile electromagnetic windows to operate at temperatures above 800??F. Included is a review of the experimental work involved in developing a radome composite, high temperature design data and electromagnetic window model fabrication. Experimental work performed in developing the basic composite and much of the desi... View full abstract»

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  • Antennafier Arrays for Electronic Beam Control

    Publication Year: 1964, Page(s):284 - 288
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1342 KB)

    Integration of antennas with circuits can provide sophisticated receiving performance, with fewer parts and an accompanying savings in size, weight, and cost more easily than conventional separate design. This is illustrated by the beam shaping capability of a four element array of controllable-gain transistorized dipole antennafiers using an equal-amplitude corporate feed structure. Effective amp... View full abstract»

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  • Integrated Circuit Application to Portable Minuteman Test Equipment

    Publication Year: 1964, Page(s):373 - 377
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1159 KB)

    A PORTABLE AUTOMATIC DIGITAL TEST SET HAS BEEN DESIGNED FOR PART OF THE MINUTEMAN GROUND ELECTRONIC SYSTEM. THE TEST SET WITH CONVENTIONAL SOLID STATE PRINTED CIRCUIT CONSTRUCTION WOULD WEIGH OVER 90 LBS. AND OCCUPY 5 CUBIC FEET OF SPACE. USING INTEGRATED CIRCUITS, A VOLUME REDUCTION OF 30 TIMES AND A WEIGHT REDUCTION OF 6 TIMES HAS BEEN ACHIEVED. THIS REDUCTION ALLOWS THE TEST SET TO BE PLUGGED D... View full abstract»

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  • The Non-Linear Potential Equation and Its Numerical Solution for Highly Saturated Electrical Machines

    Publication Year: 1963, Page(s):430 - 440
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1693 KB)

    The partial differential equations of the potential and the boundary conditions of fields in highly saturated rotating machines at no-load are developed. These are expressed in finite difference form, and in the numerical solution the potentials and the permeabilities are over-relaxed alternately. The choice of a non-uniform system of meshes, and a method of identifying the numerical operations at... 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