Abstract: A method and apparatus for electronically simulating the transmit-receive gnal path of doppler radar during a target encounter in a simulator. It is an end-to-end fuze (radar) test from RF "in" to video "out". Target signature data is collected at a reduced relative encounter velocity from the actual target. The modified pulse doppler radar produces two orthogonal signals which define the complex received radar signal. These signals are then recorded. The missile radar to be tested is coupled to the simulator which simulates an actual missile to target encounter. During the test the PROMs are clocked into RF components in an RF Loop and clock counter is started. When the radar threshold is exceeded, a radar video output function stops the counter. By correlating the number of clock pulses counter to the distance marks traveled along the missile trajectory, missile radar function with respect to target location data is obtained and missle lethality computed.

Abstract: A method and apparatus for the production of high density, monolithic cerc materials. A mixed powder such as Titanium-Carbon is first subjected to uniaxial pressure to form a green compact. The compact is positioned in a vented mould between two steel plates, reacted by a combustion synthesis process called SHS and then subjected to an explosively generated shockwave by an explosive charge positioned on the upper steel plate, which generates high pressures to compress the hot, porous ceramic to form high purity ceramic of more than 90% theoretical densities.

Abstract: An improved segmented doubled ramp sabot for launching a sub-caliber projile, comprising a plurality of longitudinal ribs disposed on the forward and aft ramp sections of the sabot, and a plurality of longitudinal ribs disposed between an obturating band seat and a conical borerider. The combined cross sectional area of the double ramp segments, together with the combined cross sectional area of the ribs, are such that the sum of these areas is approximately equal to the cross sectional area of a double ramp sabot representative of prior art. As a result, axial stiffness is unaffected, and uniform shear traction forces between the sabot and projectile are maintained. In addition, the transverse bending stiffness of the sabot is improved, thereby reducing in-bore vibration and shot dispersion while allowing maximum energy transfer to the projectile. Use of a stiffer material for the ribs further improves transverse bending stiffness and performance.

Abstract: A fluidic sorting device for the separation of two or more visually diffet materials or materials which react differently to an externally applied force. These materials are suspended in a fluid. The device comprises a fluidic logic element to which a machine vision apparatus is connected. The machine vision apparatus may be programmed to identify specific particulate materials. The machine vision apparatus captures an image of a particle or material, interprets the image, then makes subsequent value judgements, and decides as to whether the particle is to be separated out. The decision of the machine vision apparatus controls a fluidic logic element which facilitates the separation of the particles or materials. The machine vision apparatus may, optionally, comprise a counter. The novelty of the invention lies with the combination of fluidics with a machine vision apparatus.

Abstract: A sensing device for sensing acceleration consisting of a number of miniae steel bearing balls as mass elements, a housing for locating and containing the mass elements, a printed circuit board for sensing a discrete number of levels of acceleration, and an array of cantilever beam flexure elements equal in number to that of the mass elements located between the mass elements and the printed circuit board.

Abstract: An automatic isokinetic sampling device for measuring aerosols in a fluid flow has a vacuum or suction pressure device attached to the end of a tubular collector which is placed in the path of the fluid flow. A differential air flow sensor senses and determines the difference in velocity between the fluid flow outside the tubular collector and that portion of the fluid flow received by the tubular collector. A filter for collecting a sample the aerosols in the fluid flow is placed along the straight downwind path of the fluid flow and within the tubular collector. As the fluid flow velocity changes the flow inside the tubular collector is equalized to the flow outside the tubular collector providing isokinetic sampling of the aerosols.

Abstract: A heart-sound monitor and esophageal stethoscope which makes use of fluidic aminar proportional amplifiers (LPAs). These LPA's are used to sense and amplify incoming acoustic pressure signals, such as heart signals. Moreover, the fluidic monitor is able to monitor a fetus heartbeat while eliminating the acoustic interference present from the mother's heartbeat. In this case, the LPA acts not only as an amplifier, but as an acoustic filter as well.

Abstract: A method of forming solid lubricant pockets in boron based and boron containing ceramic materials (i.e. boron carbide) by nitrogen ion implantation and laser annealing. By employing the present method said solid lubricant pockets may be formed in approximately the first 750 Angstroms of the surface and near surface regions of, for example, a polycrystalline boron carbide sample. Moreover, the present invention enables one to direct the formation of solid lubricants to specific areas on the boron based or boron containing ceramics to meet a specific need. The product of the present invention is a ceramic having a reduced coefficient of friction, greater durability, and reduced chipping and fracture.

Abstract: A spectroscopy characterization module having a particular configuration includes a light tight housing that accepts monochromatic radiation through a first optical port and optically chopped coherent radiation through a second optical port. A material sample is held on a sample mount within the housing according to the spectroscopy characterization technique to be used. A rotatable detector mount enclosed within the housing positions a detector in different positions depending on the measurement being performed. A first one-to-one image forming mirror focuses monochromatic radiation passing through the first optical port onto the material sample. A lens focuses optically chopped radiation passing through the second optical port onto the material sample. A second one-to-one image forming mirror focuses radiation transmitted through the sample onto the detector in a first position while a third one-to-one image forming mirror focuses radiation reflected off the sample onto the detector in a second position.

Abstract: A kinetic energy projectile intended to be launched toward a selected tar has a projectile body and a plurality of main fins attached to the projectile body to provide stability thereto in flight. A spoiler fin is attached to the projectile body ahead of each associated main fin for reducing the temperature of the main fins during flight of the projectile, and thereby, the burning of the fins in flight. The spoiler fin is adapted and configured to provide the temperature reduction by changing the aerodynamic flow over the edges and surfaces of the associated main fin, and also may be composed of material having a lower coefficient of heat conduction than that of the main fin. A gap of predetermined width is provided between the trailing edge of the spoiler fin and the leading edge of the associated main fin, this width being selected to create recirculating vortices behind the trailing edge of the spoiler fin sufficient to cool the leading edge of the associated main fin.

Abstract: A high pressure spray injector having an injector body with an interior cavity and a pedestal located within this cavity, the pedestal having an interior cavity and firmly attached to the bottom of the injector body. Coaxial with the injector body and the pedestal is an annular piston having an end cap and an interior cavity within. The annular piston is in sliding contact with the injector body and the pedestal. A stationary piston is coaxially located within the annular piston and also has an interior cavity. At the end of the stationary piston is a nozzle with an orifice. The annular pistion is also in sliding contact with the stationary piston. A pintle rod is located within the stationary piston to open and close the orifice in the nozzle. As the annular piston is caused to move upward, a fluid is injected in the top part of the annular piston and the interior of the stationary piston.

Abstract: A low light sensing and amplifying device uses an automatically adjustable electro-optic shutter that quantitatively attenuates the amount of monitored electromagnetic energy impinging on a light processor in proportional relation to the electromagnetic energy's intensity. An output signal from the light processor controls the output of a power supply which provides an output supply signal to the electro-optic shutter.

Abstract: A device for calibrating cubes which are used in the determination of the magnitude and pressure of an air blast having a base, a pedestal mounted on the base, a pendulum pivotally attached near the top of the pedestal, a box end for holding the cube at the end of the pendulum, a timing device for determining the velocity of the pendulum during its swing, and a bumper for stopping the pendulum when the pendulum is vertical so as to impart an initial velocity of Vo to the cube whereby the calibration factor of the cube can be determined. Another embodiment provides a metallic block instead of the box end in which case the cube is struck by the block end of the pendulum thus imparting initial velocity Vo.

Abstract: A method for manufacturing explosive logic circuit trails using conventio silk screening techniques. Silk screening is used to build up both the explosive trail, as well as the inert substrate. This is accomplished one layer at a time onto a circuit base material. The explosive logic circuit herein is reliable, cost efficient and relatively easy to produce. The invention herein encompasses both the method of manufacturing said explosive logic circuits and the circuits themselves.

Abstract: A finned projectile intended to be launched toward a target has a project body and a plurality of main fins attached to the projectile body to provide stability thereto in flight. In the preferred embodiment, each main fin includes a supplementary fin movably secured thereto for increasing the overall surface area to further enhance the stability of the projectile after launch. A pin and channel arrangement is used for slidably retaining the supplemental fin and the main fins together for deployment under forces on the projectile during launch and flight thereof. The channel arrangement further includes a portion which angles suddenly to lock the supplementary fin in the deployed position. The preferred embodiment also includes putty disposed within the channel for preventing deployment of the supplementary fin during normal handling of the projectile. The putty is shattered upon initial impact with the pin during launching of the projectile.

Abstract: An elongated mirrored surface has a temperature gradient established thereacross. Condensation forms along the mirrored surface and the edge of the condensation next to the portion of the mirrored without condensation is where the dew point temperature exists. A scanning means is provided for locating this edge of the condensation. Temperature sensing means, located at the edge, measures the dew point temperature.

Abstract: A fluidic amplification device having an input, a fluid supply, a fluid sly nozzle for creating a laminar jet of fluid, an output chamber for receiving the laminar jet, control nozzles to control fluid flow through the amplification device from the fluid supply nozzle to the output chamber, wherein the control nozzle acts directly on the fluid to proportionally control the fluid output, vents disposed between the control nozzle and the output chamber, a DC flow output communicating with the output chamber, and pressure signal output ports communicating with the output chamber. By providing outputs for both DC flow and the pressure signal, the DC flow in the pressure signal output channels of the device is reduced and the problems of interstage flow noise, null off-set, parasitic capacitance and inductance in the input and output channels is also reduced.

Abstract: A composite, layered shield for protecting a vehicle housing explosives in an ammunition stowage compartment from the detonation of said explosives while in said compartment. Said shield comprises, in a layered fashion, a first layer of an energy absorbing rubber, a pusher plate layer, a crush element layer, and a second layer of an energy absorbing rubber. In order to protect the vehicle, the ammunition stowage compartment is lined with the composite, layered shield of the present invention. The shield is mounted in such a manner that the energy absorbing rubber is closest to the explosives, followed by the pusher plate, then the crush element, and finally the second energy absorbing rubber layer. The overall areal density of the shield is about 17.6 pounds per square foot. Said shield is light weight and provides effective blast and shock protection for the walls of the explosive containing stowage compartment as well as for the vehicle housing the stowage compartment.

Abstract: A Surge Protection Device Test Fixture having a metallic housing with a bs coverplate, the housing having an input coaxial connector and an output coaxial connector mounted on either end, a bare wire conductor connecting the center conductor of the input coaxial connector to the center conductor of the output coaxial connector, a teflon holder located within the housing for holding a surge protection device and positioned so as to allow the surge protection device to make contact with the bare wire conductor, an adjustable contact screw for providing a conducting path between the brass coverplate and the surge protection device, a coil for inductively sensing a current through the surge protection device, a coil for inductively sensing a current through the bare wire conductor, and a coil for inductively sensing a current on the outside of the housing.

Abstract: Phase or frequency modulators which utilize phase generators rather than se shifters to produce low frequency input voltages to single side band modulators. Two phase generators are used to supply the two low frequency input ports of a single side band modulator of the 90.degree. phase shift/side band cancellation type, with the voltage dividers of one phase generator being adjusted so that its output is displaced 90.degree. in phase from the output of the other phase generator.