Abstract: A missile having a sensor in the nose thereof. The nose is in the shape of transparent ogive window which has an index of refraction that assumes different values at different positions on the window whereas the window appears to the sensor as if it were a hemispherical window.

Abstract: A platform carried by a rocket projectile for supporting an antenna or ot type of terminal homing sensors which are required to survive a high-g launch phase. The platform uses compliant suspension with modified hemispherical support gimbals for bearing protection during a 10,000-12,000 g projectile launch environment. Post-launch lower-g environments permit the compliant suspension to function as a two-degree-of-freedom stabilized platform that can be used for guided projectiles such as the anti-radiation projectile missile.

Abstract: An accelerometer utilizing a laser source and a resonant cavity formed by a pair of spaced mirrors. A birefringent isotropic material is disposed in the resonant cavity. Light generated by the laser is reflected back and forth between the mirrors and through the birefringent material to generate a pair of orthogonally polarized beams. The optical path of one beam is changed in response to acceleration forces acting on a proof mass carried on the birefringent material. The pair of beams produced have different phases. The phase difference will be by an amount proportional to the difference in refractive indexes along and perpendicular to the optic axis of the birefringent material.

Abstract: Apparatus for measuring rocket motor thrust components and resolving small ector alignment errors. Apparatus includes a spherical air bearing which embodies gyrodynamic principles in order to provide three degrees of angular freedom and in order to achieve stiff, vibration free reactions against translational movement. Effects of thrust misalignment are seen as changes in angular rate which can be measured by encoding rotations of the floated rocket motor inner bearing assembly by use of built-in sensors and/or by motion with an external optical tracker.

Abstract: A pedestal and gimbal assembly related to missile semi-active radar seekers or supporting three gyroscopes and functions as a reference platform to relate airframe attitude. This is mechanized by utilizing the two degrees of freedom gimbal for pitch and yaw and controlling the missile body roll axis for the third degree of freedom. Structure of the positioning system includes a pedestal having an inner gimbal assembly including a support for mounting the antenna assembly and the gyros. A yaw torque motor assembly is carried by the inner gimbal and is provided with a pair of output shafts for supporting the inner gimbal and controlling the yaw movement thereof. A pitch motor is housed in the pedestal and includes a drive pinion and a drive shaft. The drive pinion is connected to the drive shaft. The drive pinion and yaw motor operates to control the pitch movement of the antenna assembly.

Abstract: A fiber optical transmission system for guiding and controlling a missile. he fiber optic link can provide for up and down link transmission that can provide target and reference position information not available to present wire guided missile systems. Fiber optics have an almost unlimited information transfer rate and does not have the electrical interference problems of the wire systems.

Abstract: A system for enabling homing by a missile onto a target which is marked by beacon at some other location. A radio frequency beacon is located remotely from the intended target. Target coordinates relative to the beacon are obtained and relayed by conventional means to the launch site and are stored in missile memory. During flight the missile seeker acquires, interrogates and tracks the beacon. The missile borne equipment generates guidance signals which alter the trajectory to the target location.

Abstract: A device that can be used with high repetitions, high power, pulsed laser ams for beam diagnostics is described. The device utilizes a plurality of hole gratings made from wires or beam attenuators which are positioned in the laser beam by a synchronization technique for firing the high power pulsed laser. Each grating is in the high power beam for one pulse and is then out of the beam for (n-1) pulses, when n is the number of gratings used, to allow for cooling before it is used again.

Abstract: A rocket engagement mechanism that will enable a gunner to pre-aim and then emotely fire the rocket while the gunner is hidden. The gunner is physically separated from the noise and smoke resulting from firing a rocket thus giving the gunner a better chance to escape the resulting return fire. The mechanism can also be used as a booby trap device that can be left by retreating troops to harass and slow the enemy advance. A cap is attached over the firing mechanism of the rocket launcher and has a piston squib positioned to press the launcher firing mechanism when the squib receives an electrical signal.

Abstract: A plurality of fine leak test chambers for fast individual testing of herically plated microelectronic devices. Each microcircuit component, having already been subjected to a controlled environment of 5 percent helium and 95 percent nitrogen and then assembled, is placed in the chambers and sealed therein. The chambers are evacuated and helium flow rate (if present) is measured by a spectrometer.

Abstract: A pneumatic gross leak detector for testing micro-electronic packages. The pparatus includes a frame having a vertically movable upper section and a stationary lower section. A chamber is provided with walls which are secured to the upper section for movement therewith. The chamber includes upper, lower and intermediate portions disposed in communication. A test chamber base is secured to the lower stationary section to receive the microelectronic package therein. A first piston is provided in the upper chamber portion for moving the upper frame section downwardly for sealing engagement for the lower chamber portion with the test chamber base. A second piston is provided for compressing air in the lower chamber portion to a predetermined value. A readout device communicates into the test chamber to indicate if compressed air in the lower chamber leaks into the micro-electronic package.

Abstract: A coned joint for the purpose of structurally joining two filament wound bes, having dissimilar diameters, into a single launch tube. After being joined together, the assembled tubes have a straightness equal to or better than a comparable rolled or fabricated metal tube in addition to being lighter and less costly to produce.

Abstract: A process for depositing thick film electronic material which forms elect circuits on the inside wall of right circular substrates. The process includes the determination of a circuit pattern wherein a light sensor is used to actuate electronics which in turn controls the flow of the thick film paste for deposition on the substrate inside wall. The substrate is rotated and translated in conjunction with the movement of a light sensor in the x-y plane.

Abstract: A detent device that is applicable to rocket launch systems where the rocs must be positively retained on the launcher prior to the time of launch. The device engages a detent groove in the rocket and restrains the rocket from any forward motion until launch at which time a cam lifts the detent out of the groove thereby releasing the rocket.

Abstract: An integrated, completely automatic solar heating and cooling system for buildings is disclosed. The system includes a first and a second interconnectable cooling/heating subsystem each of which includes a group of solar heat collecting panels, a heat storage reservoir, and a piping network for transferring the heat exchange media, preferably water, therebetween. A third subsystem transfers the media from one or both of the reservoirs to a heat exchanger which transfers heat to or from the building's heating and cooling distribution system. Cooling for the building is accomplished by using a fourth subsystem to chill the media in the first subsystem. In the cooling mode, the solar panels of the first subsystem are covered and used as a heat exchanger, and the second subsystem, isolated from the first heating subsystem, is used to heat the building's hot water system and to provide building heat if required.

Abstract: A laser system using a cw HeNe laser for transmitting a beam through a dioic into an unstable resonator. A second laser, a cw CO.sub.2 laser, has its beam transmitted through the dichroic to follow the HeNe beam into the unstable resonator laser aperture. The resonator's secondary and primary mirrors are adjusted into a parallel orientation which gives a series of circles in both laser beams. The gain-spike is suppressed to eliminate air breakdown.

Abstract: A system and apparatus for accurate measurement of a rocket's attitude that includes a laser source placed downrange and pointed towards the rocket with a diverging beam. The beam will be intercepted by a mirror on the rocket's ogive, and the reflected beam will then be presented on a vertical target. A detector assembly positioned behind the vertical target plane detects the centroid of the reflected energy and provides an analog output signal.

Abstract: Ions are generated in a vacuum condition of an ion accelerator and injected hrough three aerodynamic windows to atmosphere pressure. In its travel through the windows the coil provides a magnetic field to prevent the ion beam from dissipating while it is traveling to the atmosphere.

Abstract: A coned joint for the purpose of structurally joining two filament wound es, having dissimilar diameters, into a single launch tube. After being joined together, the assembled tubes have a straightness equal to or better than a comparable rolled or fabricated metal tube in addition to being lighter and less costly to produce.

Abstract: A support which can be assembled and disassembled at room temperature and events translational and rotational motion at temperatures below room temperature. A truncated cone is located between an outer support housing and an inner housing which is to be supported. The narrow end of the cone is sized to fit over the inner housing and the wide end of the cone is sized to fit within the outer support housing. The cone is comprised of a material which has a higher thermal expansion coefficient than the inner housing.