Abstract: The invention described here provides different embodiments of a component part which exhibits high heat insulation and high heat energy storage for use in residential and industrial constructions. It is based on a latent heat storage by phase changes of particular materials in a temperature range equal to room temperature. The component part can be packaged in mats which are similar to films with air chambers (known as bubble wrap) used for packaging sensitive and fragile articles. Moreover, the component part can be rendered fire-resistant. In its most simple embodiment, it can bring about significant energy savings for heating and cooling when incorporated in walls, ceilings and floors of buildings. By integrating the material with geothermal heat pumps and solar collectors, said energy savings for heating and cooling can be increased by up to 80 percent, compared to conventional construction methods.

Abstract: A guidance seeker system for a projectile includes a plurality of photoconductive sensing elements symmetrically disposed about a central axis of the projectile. When a target is illuminated with a light source, a lens transmits light reflected from the target to one or more of the photoconductive sensing elements. Dependent on which photoconductive sensing element is irradiated, a variance between the line of flight of the projectile and the target is determined. A voltage impulse resulting from irradiation of the photoconductive sensing element triggers actuation of a course corrector, such as a diverter, to nudge the line of flight of the projectile to increase the likelihood of the projectile reaching the desired target. This guidance seeking system is particularly effective when the target is designated with a pulsed laser.

Abstract: A guidance seeker system for a projectile includes a plurality of photoconductive sensing elements symmetrically disposed about a central axis of the projectile. When a target is illuminated with a light source, a lens transmits light reflected from the target to one or more of the photoconductive sensing elements. Dependent on which photoconductive sensing element is irradiated, a variance between the line of flight of the projectile and the target is determined. A voltage impulse resulting from irradiation of the photoconductive sensing element triggers actuation of a course corrector, such as a diverter, to nudge the line of flight of the projectile to increase the likelihood of the projectile reaching the desired target. This guidance seeking system is particularly effective when the target is designated with a pulsed laser.

Abstract: A guidance seeker system for a projectile includes a plurality of photoconductive sensing elements symmetrically disposed about a central axis of the projectile. When a target is illuminated with a light source, a lens transmits light reflected from the target to one or more of the photoconductive sensing elements. Dependent on which photoconductive sensing element is irradiated, a variance between the line of flight of the projectile and the target is determined. A voltage impulse resulting from irradiation of the photoconductive sensing element triggers actuation of a course corrector, such as a diverter, to nudge the line of flight of the projectile to increase the likelihood of the projectile reaching the desired target. This guidance seeking system is particularly effective when the target is designated with a pulsed laser.

Abstract: A reticle for a guidance seeker for spinning projectiles comprises a substrate; a pattern of a plurality of alternating light modulating structures, such as opaque and light transmitting, or light absorbing and light reflecting areas on the substrate such that an image of a target moving on the substrate will generate a plurality of pulses corresponding to the number of lines crossed by the image, the number of pulses increasing as the image moves outwardly from the center of the reticle; and a distinguishable, unambiguous, and singly periodic feature of the pattern, which is readily detectable every time the target image moves circumferentially, completing a full circle around the center of the reticle.

Abstract: A reticle for a guidance seeker for spinning projectiles comprises a substrate; a pattern of a plurality of alternating light modulating structures, such as opaque and light transmitting, or light absorbing and light reflecting areas on the substrate such that an image of a target moving on the substrate will generate a plurality of pulses corresponding to the number of lines crossed by the image, the number of pulses increasing as the image moves outwardly from the center of the reticle; and a distinguishable, unambiguous, and singly periodic feature of the pattern, which is readily detectable every time the target image moves circumferentially, completing a full circle around the center of the reticle.

Abstract: A guidance seeker for a spinning projectile defined by its angular momentum vector, comprises a lens system or a millimeter-wave antenna for receiving radiation derived from a target and forming an image of the target. The lens system has a reticle having a pattern of concentric circles nutating about the projectile angular momentum vector such that the received radiation is modulated by the target image as the image moves across the concentric circles. The millimeter-wave antenna generates concentric lobes nutating about the projectile angular momentum vector such that the received radiation is modulated by the target image as the image moves across the concentric lobes. A detector is coupled to the lens system or the antenna for receiving the modulated radiation. The detector is adapted to generate an output in response to the received modulated radiation.

Abstract: A system for preventing salvage fusing of nuclear warhead attack weapons including an interceptor weapon having detecting means operably associated therewith for detecting an attack weapon at a predetermined distance. A disarming mechanism operably associated with the interceptor weapon for preventing detonation of the nuclear warhead. The interceptor weapon includes an explosive device for destroying the interceptor weapon during a period when the nuclear warhead is disarmed and hurling numerous particles at the attack weapon. Upon impact, the particles destroy the attack weapon thereby preventing it from ever reaching its full explosive potential.

Abstract: A specially configured cable, which, in use, has a cross section which is mmetrical to a vertical line, but asymmetrical to a horizontal line, is used for an intrusion detection system. It comprises an external sheath, which may be round or rectangular in cross section. An inner conductor is positioned below the center of the cable. It is supported in place by a thin, substantially flat, sheet of insulating material, which is attached to the inner surface of the outer sheath. This particular configuration maximizes the change in capacitance caused by an intruder passing over the cable. The cable is connected to a time-domain reflectometer, which can display on a screen the location of the intrusion with respect to an end of the cable as well as the probable type of intrusion.

Abstract: Apparatus useful for mapping fields in the range of infrasonic to ultraso, comprising a distributed electrostatic transducer, functioning as a strip transmission line, which includes a flat, substantially rectangular, metal plate, one surface of which is rough, the plate having a length generally in the range of 10 to 100 wavelengths of the frequency at which the mapping is to be done. A rectangular strip of dielectric foil is disposed under tension on the rough surface of the metal plate so that the foil touches only the most protruding parts of the surface. A long, narrow, rectangular, metallic strip is disposed on and attached to the dielectric foil, the strip being exposed to, and therefore defining, an acoustic pressure field.A duplexer is electrically connected to the metallic strip and to the flat plate, and is connectable to a source of input signals, and has output terminals at which the output signal may be measured.

Abstract: Transducers based on the variable reluctance concept, employing magnetiza, soft, plastic materials. These materials serve as the isolator between the conductors of a coaxial cable. Such materials exist in considerable variety. The magnetization is azimuthal, such as can be generated by electrical currents flowing through the coaxial cable. Any isolated section of the coaxial cable constitutes a transducer, the conductors at one end of which form the terminals, while those at the other end are connected together to provide a closed electrical circuit. Pressure changes, caused, for example, by acoustic signals, on the outer surface of this transducer produce changes in volume, which in turn induce electrical signals due to changes of the magnetic flux. The conductors of the cable transducer can be in the form of wire braids or metal films, neither of which will significantly change the elastic characteristics of the magnetizable plastic material.

Abstract: A distributed temperature sensor, in the form of a coaxial cable terminated in its characteristic impedance, comprising: an inner metallic conductor; a cylindrical, flexible, nonconductive material, surrounding the metallic conductor, having a plurality of axial voids extending throughout the length of the cable; a temperature-sensitive dielectric filling the axial voids, the voids being plugged at each end; an outer conductor surrounding the nonconductive material; and an optional elastomeric jacket surrounding the outer conductor.The invention also relates to apparatus for taking a continuous readout of a distributed temperature field, using the coaxial cable as a key element.