WorldCat Identities

SPERRY GYROSCOPE CO GREAT NECK N Y.

Overview
Works: 55 works in 75 publications in 1 language and 75 library holdings
Publication Timeline
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Most widely held works by SPERRY GYROSCOPE CO GREAT NECK N Y.
ELECTROMAGNETIC ANGULAR ROTATION SENSING( Book )

4 editions published between 1963 and 1964 in English and held by 4 WorldCat member libraries worldwide

Studes were conducted on adapting the Sperry ring laser for rotation sensing. The investiga tions were conducted at three different wave lengths-0.6328, 1.153, and 3.39 microns-using the He-Ne gas system. Although higher gain is realized at 3.39 microns and increased sensi tivity at 0.6328 micron, it appears that the 1.153-micron laser is more suitable for ex perimental evaluation because of superior stability. Consequently, the more practical Faraday biasing technique is currently being designed for the 1.153-micron system. Improve ment of an order of magnitude resulted from an alternate optical combiner which inherently reduces energy coupling from one traveling-wave mode to the other. All results are in keeping with the qualitative hole-burning theory and nonlinear oscillation model that is discussed in the report. (Author)
TRAVELING-WAVE TUBE MIXER PROGRAM( Book )

4 editions published between 1961 and 1963 in English and held by 4 WorldCat member libraries worldwide

An experimental 2 helix traveling-wave tube mixer was designed and construction has begun. Calculation of the anticipated mixing action, conversion gain, helix loss, coupler design and the problems associated with external helix coupler design are presented. After a thorough analysis of the previously posed beam pumped parametric amplifier, it was decided that no further consideration be given to the device. Conclusions based on data gathered are presented. (Author)
PROJECT LIGHTNING( Book )

3 editions published between 1957 and 1958 in English and held by 3 WorldCat member libraries worldwide

Shallow Donor Emission Cathode Study( Book )

3 editions published between 1961 and 1962 in English and held by 3 WorldCat member libraries worldwide

Work was begun on the development of a low-workfunction thermionic emitter by introducing shallow donor states into matrices having a low electron affinity. The preliminary objective was to demonstrate experimentally the introduction of controlled concentrations of shallow states into an appropriate matrix. Special consideration was given to the control of extraneous surface effects, evaporation, poisoning, and other deleterious conditions. The alkaline earth oxides, especially BaO, appeared to be the most likely materials for use as a matrix. The calculations, which have been performed, indicated that a reasonable approach to the incorporation of shallow donors into BaO was the substitution of a trivalent rare earth ion for Ba(+2), followed by a chemical reduction of the system. The elucidation of the donor properties of various additives could probably best be made through photoemission and Hall coefficient measurements in addition to the direct study of thermionic emission. (Author)
WIDE-BAND BEAM-TYPE PARAMETRIC AMPLIFIER( Book )

3 editions published between 1963 and 1964 in English and held by 3 WorldCat member libraries worldwide

An X-band, beam-type parametric amplifier capable of operating in a 20-% instantaneous band of frequency is under development. The device is a degenerate type with the pump frequency fixed at 21 gc. The amplifier is to have an RF gain of 25 db and a double-channel noise figure of 2 db. The genreal problems and approaches to the solutions of the problems are discussed. The coupler to be used is a modified bifilar helix and the pump is a resonant quadrupole type. Specific areas of discussion include the choices of beam and circuit parameters in connection with mode separation and selective excitation. The methods of generating a uniform magnetic field and a smooth electron beam are also discussed. Initial calculations and factual data are presented for the coupler, the coupler excitation circuit, the pump characteristics, and the RF matching problems. (Author)
BEAM-TYPE PARAMETRIC AMPLIFIER( Book )

3 editions published in 1961 in English and held by 3 WorldCat member libraries worldwide

The study concerns degenerate parametric amplification of 5-kmc signals with 10-kmc pumping, and non-degenerate parametric amplification of 5-kmc signals with 35-kmc pumping (30-kmc idler). Pump circuit study results are discussed and the advantages of using the quadrifilar helix as the pump circuit are summarized. To make comparison of different types of pump circuits possible, a Pierce impedance definition for the pump circuit is discussed in connection with pump gain calculations. Study results of the coupler characteristics are described. For the voltagetuned operation, several possible modes of operation are described and the advantages and disadvantages of each are discussed. (Author)
DEVELOPMENT OF AN ELECTRON BEAM DUPLEXER( Book )

2 editions published in 1963 in English and held by 2 WorldCat member libraries worldwide

An S-band electron geam duplexer was designed, fabricated, and its assembly 90-percent completed by 31 May 1963. No unforeseen difficulties were encountered during this initial phase. It is expected that testing of the first S-band device will be accomplished in the second quarter, and that the results of these tests will provide suitable data to re-design an improved version, and to initiate its fabrication. Appended to this report is a discussion of the test results obtained from the C-band device which served as a guideline for producing the first S-band design emanating from this program. (Author)
High average-power R-F window study : final technical report by D. B Churchill( Book )

2 editions published between 1961 and 1962 in English and held by 2 WorldCat member libraries worldwide

The literature study and survey of the commercially available dielectric materials for window applications was completed. It was found that single-crystal synthetic sapphire, cut with the axis of the disc parallel to the C-axis of the crystal, is the best available material from the standpoints of mechanical strength and dielectric loss factor. High-energy electronic bombardment tests on sample windows of sintered alumina and crystalline synthetic sapphire were co plete . The final oven brazes of the hybrid coupler assembly, a component of the high-power resonator, were completed. Also, the high-directivity monitor coupler was designed, and a prototype model was satisfactorily tested. The high-power water load was designed, and a prototype model was completed. A nearly perfect match at the specified operating frequency was exhibited by the model. An investigation was made of the problems of sealing rectangular block windows. Satisfactory transmission characteristics were achieved on 2 prototype models of broadband disc windows. The operation frequency bands overlap slightly, with the test fre uency of 8.35 kmc in the region of overlap. (Author)
COHERENT OPTICAL ARRAY TECHNIQUES( Book )

2 editions published between 1964 and 1965 in English and held by 2 WorldCat member libraries worldwide

Studies are being conducted to determine the feasibility of a coherent optical phased array system. A 1.06 Mu cw laser master oscillator and preamplifier driving a pair of final amplifiers is being developed for the investigation. Operation of a cw Nd:CaW04 laser oscillator using external end mirrors was achieved. Amplifier studies continued with measurements of gain and transverse gain dependence of Nd:CaW04 rods. Both closely coupled and elliptical pump chambers were utilized. A dither phase stabilization servo system has been designed for control of a Mach-Zehnder configuration during the interpulse period. High-energy amplifier pump cavities have been constructed for forthcoming tests. (Author)
ADAPTIVE RELIABILITY TECHNIQUES( Book )

2 editions published between 1961 and 1962 in English and held by 2 WorldCat member libraries worldwide

Investigation continued on an adaptive-reliability stability augmentation system for aerospace vehicles. The study included: sensors - rate gyro, adaptive computers - adaptor, transfer function networks - washout, servo amplifier and actuator, and feedback techniques - output transducers. (Author)
Design criteria study for high power high voltage research facility( Book )

2 editions published in 1964 in English and held by 2 WorldCat member libraries worldwide

A survey was made of the various uses of the facility in the investigation of plasma physics and the effects of the plasma phenomena. The high voltage power supply, resonant rings, drivers and modulators to be used in the facility were delineated. Three modulators, three resonant rings, and two drivers will be included in the initial facility configuration. The modulators will be hard tube, soft tube, and floating deck types and the drivers will be L-band pulsed and X-band c-w types. The resonant rings will be oversized waveguide at Lband and X-band frequencies and circular waveguide at Xband. The initial building design was completed and a layout is included. The initial facility configuration comprises five major areas: administration, auxiliary equipment and shops, test bay, transformer vault, and capacitor vault. (Author)
Column network study for a planar array used with an unattended radar by Gerald L Hanley( Book )

2 editions published between 1979 and 1980 in English and held by 2 WorldCat member libraries worldwide

Objectives of this program are to investigate design and fabrication techniques for an azimuthally phase-steerable planar array with dual-beams for elevation coverage. Network costs, network insertion loss, antenna pattern performance, and reliability are significant considerations. A stripline dual beam column network is being designed, fabricated and tested to demonstrate achievable performance and competitive techniques for production and installation costs are being studied. This report summarizes the work completed during the first half of the program: completion of the Antenna Conceptional design, development of all the required components, the design of the dual beam column network, and preliminary results of competitive techniques for production. (Author)
Comparative tests of basic optical doppler radar techniques( Book )

1 edition published in 1964 in English and held by 1 WorldCat member library worldwide

Comparison tests of the direct optical heterodyne system and subcarrier modulated optical doppler system were conducted. From the test results with diffuse targets, it was concluded that the subcarrier approach is more practical for space applications. The optical heterodyne system is advantageous (in resolution and accuracy) for measuring very low velocities (less than 1 foot/sec). A combined optical radar system was developed whereby each approach could be conveniently tested. The experimental equipment is described, including the criteria for aperture diameter and spot size. Comparative test results are presented in terms of signal-to-noise ratio, sensitivity, minimum detectable power, and resolution. (Author)
Investigation of periodic interaction structures suitable for traveling-wave devices( Book )

1 edition published in 1961 in English and held by 1 WorldCat member library worldwide

ASTRONAVIGATION COMPUTER RESEARCH( Book )

1 edition published in 1963 in English and held by 1 WorldCat member library worldwide

The feasibility of a magnetic-logic computer is reported. An improvement in reliability of from four to five times that achieved in equivalent semiconductor computers has been demonstrated by a substantial decrease in the number of active components. This decrease has been made possible by the use of four-phase inhibit logic and current steering in conjunction with microprogramming techniques. The most significant accomplishments of the program are: A biaperture ferrite element was developed for use in memories and registers in the temperature range from -55 C to +125 C. The element is employed in: (1) the NDRO, random access, electrically alterable program memory, (2) the NDRO random access data memory, (3) the DRO registers in the arithmetic unit. The feasibility of using single driver current pulses to accomplish multiple computer operations was demonstrated. This technique results in high reliability (low number of drivers) and low power consumption. A new method of developing basic computer timing pulses has been demonstrated in the Sequential Switch, which develops basic timing for computer operations while employing few active components. (Author)
Microwave all-pass networks for antenna feed systems by Lowell I Smilen( Book )

1 edition published in 1967 in English and held by 1 WorldCat member library worldwide

The report presents a comprehensive theory for the development of distributed feed systems for use with reflector antennas. The feed systems which are generated consist of linear, lossless, multiport networks used in conjunction with an array of small radiators that is distributed transversely in the focal regions of the antennas. The first part of the report is devoted to the analysis and synthesis of reciprocal, lossless, all-pass 2n-port networks. Several new members of this class of networks are described. The second part deals with the application of these networks to the problem of approximating families of electric field distributions in the focal regions of reflector antennas. (Author)
Wide-band beam-tyype parametric amplifier( Book )

1 edition published in 1964 in English and held by 1 WorldCat member library worldwide

An X-band, beam-type, parametric amplifier capable of operating in a twenty percent instantaneous band of frequency is under development. The device is a degenerate type with the pump frequency fixed at 21 Gc. The amplifier is to have an r-f gain of 25 db and a double-channel noise figure of 2 db. The device uses a modified bifilar helix as the coupler and a resonant quadrupolar circuit as the pump. Cold test data on r-f match, cavity Q, and circuit loss for the pump and coupler at their respective operating frequency ranges are presented. Best results on the coupler show that the VSWR is nominally at 2, and the cold insertion loss is about 4 db. Problems and results of the first and second devices constructed during the reporting period are discussed. The discussion includes d-c properties of electron gun and electron beam focusing, collector operation, Kompfner dip measurements, and signal transmission from coupler to coupler. Other problems such as coupler and pump synchronization, noisestripping, and ion oscillation are discussed. Preliminary gain data shows that the electronic gain is only about 3 db for a pump power of 7 wattss. (Author)
Methods of determining transition probabilities and level population densities by self-absorption of radiation( Book )

1 edition published in 1963 in English and held by 1 WorldCat member library worldwide

Some different variants of the self-absorption method giving the possibility to determine the optical density kappa (O) l in the region of the center of a spectral line have been described. The calculation formula and a table of data are given for: (1) the method of the variance of the absorption length, and (2) the method of one and two mirrors. The precision of the determination of kappa (O) l and for correspondent products of the transition probability by concentration of the atoms (AkiNi and AkiNk) is considered. The influence of the hyperfine structure of a line on the experimental results is found. Some experimental data for the investigated discharge in neon are given. (Author)
Applied research on a high-power v-band amplifier( Book )

1 edition published in 1963 in English and held by 1 WorldCat member library worldwide

The applied research on a high power V-band 55 Gc amplifier chain was divided into two phases. Phase I resulted in the design of a CW 1 watt, 30 db amplifier traveling wave tube designated STV-197. Design studies were performed toward a 50 KW high gain, broadband traveling wave amplifier designated STV-198. No further work on the STV-197 was performed on Phase II and no tubes were built. Phase II efforts were concluded with the construction and testing of three experimental pulse final amplifier tubes, but for a 10 KW reduced objective. The data obtained from one of the experimental tubes indicated promise of meeting the specifications. Mechanical type failures caused the three experimental tubes to fail. There is a need for additional work in the areas of: circuit support to maintain straightness, liquid cooling of the circuit, refinement of the rf window for kilowatt power level applications, and reduction of size and weight. (Author)
LASER MODE INTERACTION STUDIES( Book )

1 edition published in 1964 in English and held by 1 WorldCat member library worldwide

Extensive analytical studies of laser modes and optical resonators led to the formulation of a general theory and graphical treatment of optical resonators with focusing elements. This published work is now expanded to include cases involving nonparallel axes of symmetry. The optical resonator theory was experimentally applied to a triangular ring optical resonator. Beat frequencies between various modes were measured. The results were in agreement with the analytically predicted frequencies. A GaAs diode laser with an external ellipsoidal mirror was analyzed and experimentally studied. Reduction of spot size is treated and the apparatus to position the diode-mirror combination is described. Dual canted Fabry-Perot mode selector etalons were experimentally studied with a ruby laser. Beam-angle narrowing in two dimension is shown. The theory of frequency selectivity and angle narrowing is reviewed. (Author)
 
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English (40)