Abstract: Photons from nuclear radiation are absorbed by fiber optics and the mater of the fibers have their energy levels elevated causing fluorescence. The fluorescence is a noise component which interferes with light signals axially passing through the fiber optics. By using a narrow bandwidth interference optical filter, centered about the communication frequency, the noise interference may be substantially reduced so that an acceptable signal-to-noise ratio is achieved. A tuned optical filter will compensate for drift of the center communication frequency.

Abstract: An electro-optical apparatus for marksmanship training wherein a simulated cene is presented on a screen by a motion picture projector. The marksman or trainee operates a weapon, which includes a module to develop a laser beam, to simulate firing at a target on the scene. The apparatus provides an improved optical system including a dichroic mirror which permits the light which projects the target scene to pass through the mirror for providing an improved scene illumination while reflecting substantially all the laser beam energy to activate a target hit detector.

Abstract: 4. In a projectile comprising a casing having a first electrically conducg part, a second electrically conducting part and an electrically insulating part interposed between said first and second conducting part, a proximity detector comprising:(a) a bridge circuit;(b) said bridge circuit having a first terminal connected to said first electrically conducting part of said projectile casing; and(c) said bridge circuit having a second terminal adjacent to said first terminal and connected to said second electrically conducting part of said projectile casing.

Abstract: Recycle of spent acid in nitrolysis of hexamine to RDX is accomplished un conditions, which avoid or minimize the need to process the spent acid through conventional costly recovery operations and result in little, if any, reduction of RDX yield. The conditions include(a) effecting the simmering in spent acid containing between 0% and 2% water;(b) recycling at least part of the spent acid of 0-2% water content to dissolve the hexamine reactant; and(c) preferably also recycling a part of the spent acid, after elimination of any water contained therein with acetic anhydride, to the heel to which the reactants are added in the nitrolysis of hexamine to RDX.

Abstract: A decalcification cabinet is provided for decalcifying osseous and dental terial. The cabinet includes drawers in which the specimens are held and includes numerous holes in these drawers and in the sides and base to permit substantially free flow of a decalcifying liquid. The edges of the top of the cabinet extend laterally outwards from the cabinet sides so as to enable the cabinet to be suspended in a container of decalcifying solution. The cabinet top provides a closure to prevent the escape of fumes and the cabinet is suspended such that a stirring magnet, for stirring the solution, can be positioned directly under the base of the cabinet.

Abstract: It is taught that infrared light can be produced by applying a voltage to a semiconductor device with a superlattice region and, further, that a population inversion can be achieved in such a device so that infrared amplification and oscillation can be produced. Methods of producing infrared radiation and of amplifying infrared radiation utilizing semiconductor devices with superlattice regions are disclosed. Also, semiconductor devices with superlattice regions for use as a laser amplifier or oscillator are taught.

Abstract: Apparatus for measuring velocity is disclosed. The apparatus in its prefed embodiment comprises a first lens and a first array of photodiodes and a second lens and a second array of photodiodes. The photodiode arrays are functionally equivalent to low resolution vidcon camera tubes and momentarily store the image. As an object passes beneath the first lens, its image is stored on the photodiode array. The object then passes beneath the second array and the image is stored on the second array. After the image is stored on the second array a correlation is made between the two images by making an element by element comparison of the serial outputs of the two arrays. Instead of relying on the storage properties of the arrays to make the correlation, the arrays can be read into a small memory for comparison. Each array is exposed for only a short period of time. The invention includes apparatus for controlling the time interval between the exposures.

Abstract: A scatter shield and weapon aiming light arrangement wherein the scatter eld is attached to an output end of an aiming light for narrowing the output light beam therefrom. The scatter shield is comprised of a cluster of thin walled, adjacent geometrically shaped tubular sections that are contained in a rigid outer shell and whose internal walls are finished with a flat black, nonreflective coating. The length-to-diameter ratio of the tubular sections of various scatter shields may be chosen to reduce light scatter from the light beam from over a wide angle of about 180.degree. down to only a few degrees.

Abstract: A system for remote microwave interrogation and imaging of biological tars comprises at least one microwave, double ridged waveguide antenna probe which operates at S-band frequencies, and a high dielectric liquid medium, preferably water, in which both the probe and the target are completely immersed. For imaging applications, the probe is positioned with respect to the target such that the target is in the near field of the antenna.

Abstract: A dual radiating system where one radiating element is placed atop the ot in a piggyback fashion. The elements can be a pair of microstrip or dielectric-loaded parallel plate radiators, or it can be a combination of the two. Separate coaxial lines feed each of the radiators, and there is a minimum of coupling from one antenna to another. The antenna can be used alone or more effectively in a linear or planar conformal array.

Abstract: A Schottky diode, whose forward voltage is 0.4 volts is connected between e load and one input of the sense amplifier, which has a minimum operating voltage of 0.6 volts. When the load becomes short circuited or drops to a very low resistance, the Schottky diode conducts to shut down the sense amplifier, which cuts off the series pass transistor. When the load resistance rises to a predetermined value, the Schottky diode becomes reverse biased, permitting the regulator to return to its normal regulation operation.

Abstract: A system for facilitating the training of a trainee to operate a target refinder. The system includes a slide (or film) projector for projecting a battlefield scene including one or more targets onto a viewing screen. The slide includes data annotated thereon corresponding to the range of the target; the target range is communicated to an operating console. A rangefinder simulator includes a means for generating a laser beam. In operation, the trainee sights the target, sets the range gate and fires the laser beam. When the laser beam hits the target, the console displays the proper range data which is then compared to the range set on the simulator by the trainee.

Abstract: 1.

Abstract: The invention is directed to a security device which detects tampering with secured closure. A fiber optic bundle is looped through a closure and secured at opposite ends of the bundle to a snap-together connector. An intermediate length of the fiber optic bundle surrounds the snap-together connector preventing access to its locking mechanism unless fibers are severed. After installation, light is passed through the fiber optics and a particular pattern is generated at a viewing end of the connector. Tampering with the closure will cause individual fiber optics to be disturbed or cut so that subsequent viewing of the fiber optics will generate a different viewing pattern than originally observed.

Abstract: A target activated spin stabilized projectile fired in a sustantially flat rajectory utilizes a pair of diametrically disposed antennae electrically coupled to a 35 gigahertz radiometer to scan a target area. Upon detection of a target within the proximity of the projectile's flight path logic circuitry of the radiometer generates a signal activating one branch of a dual out-of-line ignition system. The selected ignition branch fires a high speed self-forging slug from a target aligned side of a Miznay-Shardin type warhead vertically downward into the "soft" top side of the detected target.

Abstract: A forward-locking far infrared system employing a modulator for infrared iation directed onto one side of a thermal-to-optical transducer. The transducer also has directed onto the same side visible or near infrared radiation. The transducer thus produces a visible or infrared transmission or reflection image of the far infrared scene. This image is detected by an accoupled optical amplifier which provides a signal for a visible display.

Abstract: An electrical battery comprised of a substrate of a radioactively ionized, electrically polarized, polycrystalline ferroelectric ceramic material, which is disposed between a pair of conductive electrodes. The radioactive ionization produces non-equilibrium carriers in the substrate, resulting in the development of an emf across the electrodes.

Abstract: A device for electromagnetically encoding an energy passive munition prior o launch. A high frequency (HF) external energy source charges a first rectifier-capacitance circuit, having a relatively long time constant, via a secondary receiving coil. The first rectifier-capacitance circuit acts as a temporary power source for energizing programming circuitry capable of receiving subsequently pulsed HF encoding signals. A second rectifier-capacitor circuit, having a shorter time constant, is used to energize logic circuitry for programming a nonvolatile memory in binary coded bits. The binary code information is used to set a timer which subsequently causes the munition to self-destruct after launch in a time period in accordance with encoded signals stored in a memory.

Abstract: A low cost graze sensor fuze arrangement for a point detonating spin stabzed projectile in which firing pin actuation for detonation purposes is accomplished where the projectile may only graze the target and a graze sensor element will be laterally moved a limited amount to cam a firing pin assembly rearwardly toward a rotor armed detonator.

Abstract: A fuzing device for a submunition or munition comprises an airtight housing ontaining a pressure chamber communicating through an orifice to a diaphragm with a firing pin attached thereto. The fuze is actuated by pressurizing the chamber with gas which flows through the orifice at a predetermined rate until the total pressure on the diaphragm causes it to deform sufficiently to activate a detonator.