| Impingement Cooled Deformable Laser Mirror. |
13 MAR 1979 |
|
| Authors:
Bruno S. Leo; Chang P. Liu; DEPARTMENT OF THE NAVY WASHINGTON D C
|
 | The reflective mirror face plate of a deformable adaptable mirror for laser systems is cooled by an improved heat exchange apparatus. In accordance with the invention jets of cooling fluid impinge normal to the face plate in addition to coolant flowing parallel to the surface of the face plate. Coolant manifolding is provided within the mirror allowing the coolant to flow through a nozzle plate and thereafter impinge and spread ... |
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| Cryogenic Refrigeration System. |
13 MAR 1979 |
|
| Authors:
James E. Zimmerman; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A simply constructed low input power cyclic cryogenic refrigerator suitable for cooling superconducting quantum interfering devices (SQUID) and similar instruments is provided. A Stirling machine having a multistage displacer and a piston as its only essential moving parts, with helium gas as the working fluid, achieves and maintains a temperature of substantially 8.5 deg K. The working cylinder and displacer are separated by a tube and are fitted together precisely ... |
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| Measuring the Speed of an Aircraft. |
13 MAR 1979 |
|
| Authors:
Eberhard Graewe; Siegfried Krajeweski; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A continuous wave ultrasonic wave transmitter transmits modulated waves in two opposite directions being intercepted by a forward receiver and an aft receiver. The received signals are demodulated and the relative phase is used to obtain a speed reading. The wave length of the modulator signal must be larger than the two, preferably equal transmitter-to-receiver spacings. A similar but orthogonally arranged receiver system permits acquisition of a speed vector. Different ... |
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| High Electrical Frequency Infrared Detector. |
28 FEB 1979 |
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| Authors:
Richard Schoolar; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A thin-film single-crystal infrared detector exhibiting an increased frequency of response. A closed transverse junction, formed by diffusing a central electrode of an impurity rich metal into a lead-salt film epitaxially grown on an insulating substrate, provides an effective optical area in excess of the junction surface. An ohmic contact is spaced apart from the central electrode. Junction capacitance, a limitation upon the electrical response, is diminished by the detector ... |
|
| Combined Radial Diffuser and Control Valve for High-Pressure Fans. |
27 FEB 1979 |
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| Authors:
Jerry W. Cuthbert; Sydney Davis; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A variable flow diffuser for use in air cushion vehicles to convert the kinetic energy of the moving air from the main fan into potential energy of air pressure. The conversion is accomplished by passing the air flow from the fan through a flow splitter and diverting it radially outward in all directions along a plane perpendicular to the initial direction of the air flow. The volume of air passing ... |
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| Efficient Apparatus for Projecting Acoustic Waves. |
27 FEB 1979 |
|
| Authors:
George O. Pickens; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| In an apparatus for projecting low-frequency acoustic waves in a liquid media, a chamber adapted to be immersed in the media contains gaseous material to provide a compliance and is provided with an aperture. A piston of selected mass is sealably mounted in the aperture, having one end adapted to displace a selected mass of the liquid media and the other end adapted to displace the gaseous material in the ... |
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| Three dB Single Mode Optical Fiber Interferometer Beamsplitter/Coupler. |
26 FEB 1979 |
|
| Authors:
Matthew N. McLandrich; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| An improvement for a single mode, fiber ring interferometer reduces the problems normally associated with the use of lenses and conventional beamsplitters. The lenses and beamsplitters are replaced by single-mode optical fiber bidirectional couplers. These couplers are made by removing the claddings of two fibers over a predetermined length and then positioning and fixing the exposed cores together at a predetermined separation. This optical beamsplitter provides a rigid, mechanically stable ... |
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| Three Dimensional Integrated Circuits. |
21 FEB 1979 |
|
| Authors:
Leopold J. Johnson; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| Three dimensional integrated circuits are manufactured from compatible cofireable materials by extruding batched cofireable materials to form blocks of specified cross sections, selecting and stacking cross sections of various widths from different blocks in a specified manner to form the desired circuit and placing the stack in a furnace having a predetermined temperature time profile to properly sinter each of the materials. (Author) |
|
| Square and Rectangular Electroacoustic Bender Bar Transducer. |
20 FEB 1979 |
|
| Authors:
John D. Ballock; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| The transducer's active elements are a plurality of thin, narrow, piezoelectric bars bonded side-by-side to a flexible plate. Electircally, a circuit is coupled across the thickness of each bar or strip to include the bars as a plurality of parallel capacitors. The plate has a fixed length that is maintained during operation. Consequently, piezoelectric length expansions and contractions of the bars are translated into an oscillating bending motion of the ... |
|
| Hydrogen Isotope Separation. |
13 FEB 1979 |
|
| Authors:
Thomas J. Manuccia; Christine E. Geosling; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A method of separating isotopes of hydrogen which comprises subjecting a mixture of methane and isotopes of hydrogen in a methane to hydrogen mole ratio from about 1000:1 to about 1:10 to a glow electrical discharge from about 10 to the minus 3rd power to about 50eV per hydrogen bond at a temperature from about 50 K. to about 310 K. and at a pressure from about 0.3 Torr to ... |
|
| Automated Flash-Bang Method and Apparatus for Determining Lightning Stroke Distances. |
06 FEB 1979 |
|
| Authors:
Robert D. Hill; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| Four microphones are disposed one at each corner of a square of rectangular configuration located near a base station from which the lightning distance is to be measured. A light detector also is located near the base station. When lightning occurs, the light and sound waves are detected and passed in pulse form over separate channels to a computer. The time intervals between lightning and sound in each channel are ... |
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| Remotely Operated, X-Y Translation Slide with Stationary Motors. |
06 FEB 1979 |
|
| Authors:
Mohammad Fatemi; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| This patent describes apparatus for providing remote-operated two dimensional translation in a vertical plane in an accurate and reliable manner for use in a laboratory sampling system, comprises two translation stages with a moveable slide affixed to one of such stages, mounted so as to be independently translatable in orthogonal directions in the vertical plane and are coupled to an integral drive system in such a manner so as to ... |
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| Tunable Laser Based upon S2,Te2 and other Selected Dimers. |
30 JAN 1979 |
|
| Authors:
Stephen R. Leone; Kenneth G. Kosnik; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| Lasing can be achieved by pumping a laser cell containing a vapor formed predominantly of Group VI dimers such as S2,Te2,Se2,TeO,TeSe,SeS, from a ground electronic state to a selected vibrational-rotational level in a selected excited electronic state. The selected excited electronic state is one having allowed transitions relative to the ground electronic state and the selected level of the excited state is one that is below the dissociation limit of ... |
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| Solar Energy Window. |
30 JAN 1979 |
|
| Authors:
Richard L. Field; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| This patent describes an energy absorbing venetian blind type device for generating electricity, providing heat, and serving as a sun shade. A plurality of slats covered with an array of photovoltaic cells are enclosed between two panes of glass of a window housing. A heat removal system using forced air cools the photovoltaic cells and collects heat for heating purposes elsewhere. The electricity generated by the photovoltaic cells is collected ... |
|
| Photographic Image Enhancement by Photofission. |
30 JAN 1979 |
|
| Authors:
Kenneth M. Murray; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| This patent discloses a method for producing a replica image with enhanced contrast from an original photographic image comprising toning the original photographic negative with a stable photofissionable isotope material, placing the toned negative in contract with a replication plate made from a transparent material in which damage tracks left by fission fragments may be made visible by some process such as etching, irradiating the toned negative with high-energy X-rays, ... |
|
| Electronic Delay Detonator. |
30 JAN 1979 |
|
| Authors:
Steven E. Fowler; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| An electric detonator is fired by energy stored in the circuit upon arming of the system. A bridgewire grounds the trigger signal until sufficient input is present to blow out the bridgewire. The trigger signal then passes through a time delay circuit which gates a silicon controlled rectifier. This permits a closed circuit loop between the detonator and the stored energy. (Author) |
|
| Motion Compensating Liquid Holding Tank. |
30 JAN 1979 |
|
| Authors:
Lawrence M. Phillips; Homer O. Porter; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A motion compensating tank which includes a bottom tank portion which is capable of holding liquid and a top portion which has a flotation collar and a flexible collar. The flotation collar is buoyant in the liquid so as to float substantially level thereon, and the flexible collar sealably joins the flotation collar to the bottom tank portion. With this arrangement liquid which sloshes in the tank can be retained ... |
|
| Cooling Arrangement for Plug-in Module Assembly. |
29 JAN 1979 |
|
| Authors:
Dale B. Tague; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| An improved cooling arrangement for an electronic plug-in module assembly having a plurality of modules supported in grooves in a pair of parallel sides. Each parallel side is provided with fluid passageways for carrying a cooling liquid for removing heat transferred from a heat sink on each module to the sides. A plurality of apertures are provided in each side between adjacent grooves and carry fins through which cool air ... |
|
| Safing a Flueric Cartridge Initiator. |
23 JAN 1979 |
|
| Authors:
Joseph W. Morris; Vincent P. Marchese; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| An improved flueric cartridge initiator (FCI) comprising a heat resistant or composite material resonance tube, a hardened high strength thermal disk and copper seals, in combination with an ignition train is made safe utilizing specific fluid dynamic phenomenon associated with the operation of the resonance tube. The present device uses simultaneous dual fluid inputs to create a Boolean AND logic element in order to reduce inadvertent firing functioning of the ... |
|
| Bisorthodinitriles. |
23 JAN 1979 |
|
| Authors:
James R. Griffith; Jacques G. O'Rear; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| This invention pertains generally to organic polymers and in particular to organic semiconductors. A semiconductor is a near insulator at room temperature. At this temperature the resistivity of a semiconductor is from 10 to the minus 2nd power to 10 to the plus 9th power ohm cm. Until recently organic polymers were generally considered to be very poor conductors of electricity. Newly discovered organic polymers, however, have shown promise as ... |
|
| Energy Fluence Meter for X-Rays. |
23 JAN 1979 |
|
| Authors:
Kenneth M. Murray; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| This patent describes an instrument for measuring the energy fluence of a pulsed X-ray field independent of the energy of the photons constituting the field. Separate X-radiation absorption assemblied made of particular materials include separate X-radiation detector means therein and are positioned relative to each other to provide output signal proportional to the energy fluence of the incident radiation. This device will operate over an energy fluence rate range from ... |
|
| 14 AND 16 Micron, Optically Pumped. Gas Dynamic Co2 Laser. |
23 JAN 1979 |
|
| Authors:
Joseph A. Stregack; Thomas J. Manuccia; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| This patent describes an electric discharge gas-dynamic laser (EDGDL) providing laser action in CO2 at 16 microns between the (02 0) and (01'0) levels as well as between the (10 0) and (01 0) levels at 14 micorns. A 9 micrometers or 10 micrometers saturating pulse equilibrates the (001) level with either the (02 0) or (10 0) level and creates the 14 micrometers or 16 micrometers inversion. Extraction efficiencies ... |
|
| Time Delay Computer Using Fuze Doppler for Air-to-Air Missiles. |
23 JAN 1979 |
|
| Authors:
Lloyd E. Kinsey; Gregory C. Roush; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| Fuzing incorporating a doppler signal for establishing warhead fuzing time. More particularly, circuitry is provided in which the doppler is detected, integrated and used upon exceeding the level of a preset threshold device to enable two preset counters to effect fuzing only if their individual preset counts are achieved within a time established by their associated timers. A third, higher count, preset counter effects the fuzing if not earlier realized ... |
|
| Sequential Probability Ratio Test for Friend Identification System. |
23 JAN 1979 |
|
| Authors:
Walton B. Bishop; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| The present invention involves apparatus for performing a sequential probability ratio test to make decisions in a Friend Identification System. The apparatus determines a product of sequential ratio probabilities and compares them to appropriate threshold probability values to make decisions as to acceptability, non-acceptability, or the unknown nature of replies from a target. (Author) |
|
| Seawater Hydraulic Motor Distributing Valve Based on a Hydrosphere Bearing. |
16 JAN 1979 |
|
| Authors:
Earl J. Beck; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A commutating or distributing valve for timing and distributing high pressure seawater to a number of individual pistons in a multi-piston hydraulic motor using seawater under pressure as a motivating fluid. (Author) |
|
| Deuterated Lubricant. |
16 JAN 1979 |
|
| Authors:
Neal D. Rebuck; A. Conte Jr; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A mixture of nondeuterated and partially or fully deuterated hydrocarbon lubricants. Such a mixture exhibits substantially improved bearing performance life and oxidation resistance, without having fully deuterated the entire lubricant. (Author) |
|
| Composite for Improved Stripline Board Material. |
16 JAN 1979 |
|
| Authors:
Arnold Adicoff; C. Martin; Rena Y. Yee; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A stripline board material of hollow glass microspheres chemically bonded to a coating material and physically held in a polymeric matrix, preferably homo- or copolymers of ethylene, propylene and/or styrene. The coating material is a difunctional silane with one functional group bound to the glass and the other bound either to the matrix or to a copolymer of a structure similar to the structure of the matrix. In the latter ... |
|
| Constant Illumination Control System. |
16 JAN 1979 |
|
| Authors:
Maurice N. Smith; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A constant illumination level control system for continuously adjusting the level of artificial illumination in an area of controlled lighting to complement available natural illumination. A photocell sensor in combination with an input amplifier generates a voltage representative of the illumination level in the area of controlled lighting. This illumination level voltage is compared by a comparator with a reference voltage, a non-zero difference voltage output from the comparator being ... |
|
| Turbomachine Balance Correction System. |
12 JAN 1979 |
|
| Authors:
Robert P. Teimeo; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A balance system for rotating turbomachinery and other rotating devices is provided wherein balance correction is obtained by snap rings having both an intentional eccentricity of their center of mass and discrete peripheral features which are adapted to be received in corresponding recesses in the machinery. (Author) |
|
| Ducted Rockets. |
09 JAN 1979 |
|
| Authors:
Klaus C. Schadow; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| The overall efficiency of a reaction engine having primary and secondary combustion chambers is greatly improved by reducing the primary exhaust velocity to subsonic speed. This is accomplished in a preferred embodiment by using an exhaust tube downstream of the primary nozzle. A tube diameter of about six times that of the primary throat diameter and a tube length of above five to ten times that of the tube diameter ... |
|
| Method of Inhibiting and/or Eradicating Marine Fungal Growth with Obtusastyrene. |
09 JAN 1979 |
|
| Authors:
John D. Bultman; Donald D. Ritchie; Leonard Jurd; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| Marine fungal growth is inhibited and/or eradicated in wood by contacting the wood with obtusastyrene. |
|
| Coated Electrodes for Underwater Metal Working. |
09 JAN 1979 |
|
| Authors:
Thomas J. Dawson; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A waterproof electrode useful in metal-working is obtained by coating the electrode with a polyolefin selected from the class consisting of polyethylene, polypropylene, polybutylene and mixtures thereof at a thickness from 0.25 cm to 0.80 cm by a method which comprises placing the electrode inside a polyolefinic heat-shrinkable tubing of a length sufficient to cover at least 0.6 cm of the bare metal of an electrode with a flux coating ... |
|
| Elevation Simulation for Frequency Scan Three Dimensional Radar. |
02 JAN 1979 |
|
| Authors:
Wayne S. Linfield; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A system for simulating, in the elevation dimension, an environment of targets, ground clutter and chaff to a frequency scan (inertialess) three-dimensional radar system transmitting frequency differentiated pencil beams to provide an elevation scan. To generate targets, the radar elevation simulation system determines the pencil beams in which a simulated target would appear and generates simulated target echo signals, frequency and time differentiated to correspond to the frequency and transmission ... |
|
| Biopotential Movement Artifact Inhibiting System. |
02 JAN 1979 |
|
| Authors:
Robert L. Seeley; William F. Flanigan; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| The broadband auditory thresholds of marine mammals are determined by an apparatus which compensates for the animals' movement artifact. A number of evoked responses to audio stimuli are average during discrete time intervals. This approach reduces the effects of potentials attributed to movements of the animal, for example, the opening and closing of the blow hole. A threshold detector circuit, a tape delay and related circuitry electronically cooperate to block ... |
|
| Silicon-Phthalocyanine-Siloxane Polymers. |
02 JAN 1979 |
|
| Authors:
Kenneth J. Wynne; John B. Davison; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A silicon-phthalocyanine-siloxane polymer having the formula wherein Pc is a phthalocyanine nucleus, Ph is a phenyl group, n is an integer from 1 to 8, and x is an average value up to 20, is prepared by a method including a reaction of a phthalocyanine-silicon-disilanol with a bis(ureido) dialkyl silane or bis(ureido) siloxane or by the reaction of a phthalocyanine-silicon-disilanol with a bis(dialkyl) amino) silane or a bis(dialkylamino) siloxane. These ... |
|
| Fluorinated Polyether Network Polymers. |
02 JAN 1979 |
|
| Authors:
Donald E. Field; James R. Griffith; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| The invention relates generally to epoxy and urethane resins and more particularly fluorinated epoxy and urethane resins. The preparation of these fluorinated polymers require hexafluoropentanediol as a precursor. This compound is both scarce and expensive. Consequently, the extent of use of these valuable fluorinated polymers is restricted by the cost and difficulty of their preparation. It is therefore an object of this invention to provide fluorinated polyol and epoxy polymers ... |
|
| High Pressure Spherical Piston. |
29 DEC 1978 |
|
| Authors:
Russell W. Pierce; Edward A. Teppo; Henry P. Leet; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A high pressure spherical piston, which can also be thought of as a spherical piston with a very small diametrical clearance, is created by moving an o-ring to a nonsymetrical position. Shifting the o-ring to one side of the piston permits the spherical piston to have a diameter less than the diameter of the cylinder walls without the normal loss of pressure. Lubrication of the piston prevents o-ring extrusion. The ... |
|
| Deployable Rotor. |
26 DEC 1978 |
|
| Authors:
Justin J. Barzda; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A deployable stowed rotor having a rotor hub to which a pair of telescoping rotor blades are connected is foldable into a package suitable for stowage prior to use. When the rotor is deployed, for example, as a lifting device for an ejection seat, positive preconing of the blades is provided by a spreading link arrangement connected to a drogue chute. Further coning during rotor spin-up is synchronized by intermeshed ... |
|
| Silicon-Phthalocyanine-Siloxy Monomers. |
26 DEC 1978 |
|
| Authors:
Kenneth J. Wynne; John B. Davison; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| The present invention pertains generally to inorganic monomer synthesis and particularly to inorganic phthalocyanine silicon monomers. The importance of siloxy-monomers is increasing because of expanding interest in modifying siloxane polymers. For example, monomers containing phenylene and carborane moieties have been reported to impart to siloxane polymers improved thermal stability and/or resistance to reversion reactions when incorporated into the polymer backbone. A siliconphthalocyanine-siloxy monomer would be valuable because this monomer would ... |
|
| Frequency-Agile Fire Control Radar System. |
19 DEC 1978 |
|
| Authors:
Harry Goldie; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| This patent describes a signal processing system for simultaneously transmitting a plurality of carrier frequencies and receiving certain of said frequencies to the exclusion of others. In a radar system employing the disclosed technique, a CW carrier and pulsed modulated carrier are transmitted simultaneously from a single antenna. The CW carrier and the echo frequency from the modulated carrier are received by a receiver protector circuit which passes the low ... |
|
| Safe-Arm Device for Directed Warhead. |
18 DEC 1978 |
|
| Authors:
Anthony San Miguel; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| This invention pertains to the fields of ammunition and explosive devices. More particularly, this invention pertains to fuses, primers and igniting devices. In still greater particularity, this invention pertains to a safearm device for use with a missile warhead. By way of further characterization and explanation, this invention pertains to a safe-arm device utilizing a solenoid which allows axial and rotational movement of a rotor based on predetermined signals. (Author) ... |
|
| Method for the Production of Hexanitrostilbene (HNS). |
05 DEC 1978 |
|
| Authors:
Isaac Angres; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A method of preparing 2-2'-4-4'-6-6'-hexanitrostrilbene from 2-4-6-trinitrobenzyl chloride and hydroxyl ions using an organic solvent-water two phase system and a phase transfer catalyst. (Author) |
|
| Optical Waveguide Power Divider. |
05 DEC 1978 |
|
| Authors:
William K. Burns; A. Fenner Milton; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| This patent describes an optical waveguide power divider which uses a two-dimensional slab waveguide. An input confined to one arm propagates to a point where synchronism between two closely adjacent guides is abruptly introduced by introducing an overlay with a fast taper. The coupled guides are here sufficiently synchronous and close together that the symmetrical and asymmetrical normal modes of the coupled structure will be excited, each with 1/2 of ... |
|
| N Cycle Gated Periodic Waveform Generator. |
05 DEC 1978 |
|
| Authors:
Clifford O. Shaw; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| This patent describes a gated waveform generator programmable to produce an output having a predetermined number of cycles. A triggering pulse and the output from a zero-crossing detector are connected to different inputs of a bistable multivibrator. The triggering pulse causes the cyclic input signal to be applied to the zero-crossing detector so that the output of the bistable multivibrator is pulse coincident with a mode of the input signal. ... |
|
| Ultrasonic Scanner System for Cast Explosive Billets. |
28 NOV 1978 |
|
| Authors:
Jeffrey M. Warren; gerald v. blessing; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| This patent describes an apparatus for ultrasonic inspection of polyethylene-jacketed, cast explosive billets including an immersion tank and a roller system for axially rotating the billet while immersed in the coupling fluid. A drive mechanism traverses a pair of laterally opposed transducers axially of the rotating billet for through-transmission inspection of the majority of the billet. A second drive mechanism sweeps a third transducer through a 90 deg arc for ... |
|
| Cis-Trans Fluoropolyol Polyacrylate. |
22 NOV 1978 |
|
| Authors:
James R. Griffith; Jacques G. O'Rear; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| The structure of a cis-trans fluoropolyol acrylate prepared by reacting acrylic acid anhydride with a fluoropolyol is reported. The fluoro-polyacrylate is useful in fabricating castings, coatings or adhesives. |
|
| Determination of Thermal Conductances of Bonding Layers in Infrared Photoconductor Arrays. |
21 NOV 1978 |
|
| Authors:
Filbert J. Bartoli; Leon Esterowitz; Roger E. Allen; Melvin R. Kruer; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A method for determining in situ the thermal conductances of bonding layers of detectors in infrared detector arrays for quality selection of preferred detector arrays. Each detector of the array is heated successively by laser pulses of variable pulse width and the thermally-induced change in detector resistance is measured as a function of time after each laser pulse and converted directly to its corresponding temperature. Using measured values of detector ... |
|
| Intense Ion Beam Producing Reflex Triode. |
21 NOV 1978 |
|
| Authors:
Christos A. Kapetanakos; Jeffry Golden; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| A reflex triode for use in producing ultra-high-current (> 100,000 A), ultra-highpower (> 10 to the 11th power W) ion beams includes an improved anode and an improved cathode and has a low inductance design. A cylindical anode stalk supporting the anode is positioned inside of and closely spaced from a cylindrical cathode shank which supports the cathode. Magnetic insulation allows for a close spacing between the anode stalk and ... |
|
| Dual Notch Fed Electric Microstrip Dipole Antennas. |
14 NOV 1978 |
|
| Authors:
Cyril M. Kaloi; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| Circularly polarized microstrip antennas consisting of thin electrically conducting, square-shaped radiating elements formed on one surface of a dielectric substrate and having a ground plane on the opposite surface of the substrate. Two feed points are used to provide a circular polarized radiation pattern. The feed points are located along the centerlines of the antenna length and width or along the diagonal lines of the element and the input impedances ... |
|
| Dual Asymmetrically Fed Electric Microstrip Dipole Antennas. |
14 NOV 1978 |
|
| Authors:
Cyril M. Kaloi; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| Circularly polarized microstrip antennas consisting of thin electrically conducting, square-shaped radiating elements formed on one surface of a dielectric substrate and having a ground plane on the opposite surface of the substrate. Two feed points are used to provide a circular polarized radiation pattern. The feed points are located along the centerlines of the antenna length and width or along the diagonal lines of the element and the input impedances ... |
|
Reports by Corporate Author
