Abstract: A system for damping oscillatory and spinning motions induced in an electromagnetically levitated material. Two opposed field magnets are located orthogonally to the existing levitation coils for providing a DC quadrupole field (cusp field) around the material. The material used for generating the DC quadrupole field must be nonconducting to avoid eddy-current heating and of low magnetic permeability to avoid distorting the induction fields providing the levitation.

Abstract: A method and system is provided for moving passengers in and out of an amusement ride of the type having a passenger cabin capable of movement in multiple degrees of freedom within an enclosure. The cabin includes ingress doors on one side of the cabin and egress doors on the other side to admit and discharge passengers from seats within the cabin. Another set of ingress and egress doors are provided on opposite sides of the enclosure in respective alignment with the ingress and egress doors of the cabin when the cabin is at rest in a loading position. A plurality of ingress and egress platforms, located outside the operating envelope of the cabin when the cabin is in motion, are adapted to be moved to a deployed position when the cabin is in the loading position to connect the ingress and egress doors of the enclosure with the ingress and egress doors of the cabin. In this way, movement of passengers in and out of the cabin, which is spaced from the enclosure, is provided in a rapid and orderly fashion.

Abstract: A method and system is provided for moving passengers in and out of an amusement ride of the type having a passenger cabin capable of movement in multiple degrees of freedom within an enclosure. The cabin includes ingress doors on one side of the cabin and egress doors on the other side to admit and discharge passengers from seats within the cabin. Another set of ingress and egress doors are provided on opposite sides of the enclosure in respective alignment with the ingress and egress doors of the cabin when the cabin is at rest in a loading position. A plurality of ingress and egress platforms, located outside the operating envelope of the cabin when the cabin is in motion, are adapted to be moved to a deployed position when the cabin is in the loading position to connect the ingress and egress doors of the enclosure with the ingress and egress doors of the cabin. In this way, movement of passengers in and out of the cabin, which is spaced from the enclosure, is provided in a rapid and orderly fashion.

Abstract: A method and system is provided for moving passengers in and out of an amusement ride of the type having a passenger cabin capable of movement in multiple degrees of freedom within an enclosure. The cabin includes ingrees doors on one side of the cabin and egress doors on the other side to admit and discharge passengers from seats within the cabin. Another set of ingress and egress doors are provided on opposite sides of the enclosure in respective alignment with the ingress and egress doors of the cabin when the cabin is at rest in a loading position. A plurality of ingress and egress platforms, located outside the operating envelope of the cabin when the cabin is in motion, are adapted to be moved to a deployed position when the cabin is in the loading position to connect the ingress and egress doors of the enclosure with the ingress and egress doors of the cabin. In this way, movement of passengers in and out of the cabin, which is spaced from the enclosure, is provided in a rapid and orderly fashion.

Abstract: A single-piece, molded plastic, Cassigrainian-type condenser arrangement is incorporated in a tubular-shaped personal pocket dosimeter of the type which combines an ionization chamber with an optically-read fiber electrometer to provide improved illumination of the electrometer fiber. The condenser routes incoming light from one end of the dosimeter tubular housing around a central axis charging pin assembly and focuses the light at low angles to the axis so that it falls within the acceptance angle of the electrometer fiber objective lens viewed through an eyepiece lens disposed in the opposite end of the dosimeter. This results in improved fiber illumination and fiber image contrast.

Abstract: The invention relates to a new method and new apparatus for determining the hottest temperature or the coldest temperature prevailing along the length of an optical-fiber light guide. The invention is conducted with an optical fiber capable of supporting multidiode propagation of light and comprising a core, a cladding, and a jacket. The core is selected to have (1) a higher refractive index than the core and the cladding and (2) a relatively high negative temperature coefficient of refractive index. A light beam capable of establishing substantially single-mode propagation in the core is launched into an end thereof at an angle to the axis. The angle is increased to effect the onset of light refraction from the core into the cladding. The value of the launch angle corresponding to the onset is determined and then used to establish the refractive index of the core corresponding to the onset angle.

Abstract: A radiation detector readout circuit is provided which produces a radiation dose-rate readout from a detector even though the detector output may be highly energy dependent. A linear charge amplifier including an output charge pump circuit amplifies the charge signal pulses from the detector and pumps the charge into a charge storage capacitor. The discharge rate of the capacitor through a resistor is controlled to provide a time-dependent voltage which when integrated provides an output proportional to the dose-rate of radiation detected by the detector. This output may be converted to digital form for readout on a digital display.

Abstract: A dosimetry-type radiation detector is provided which employs a polycrystalline, chlorine-compensated cadmium telluride wafer fabricated to operate as a photovoltaic current generator used as the basic detecting element. A photovoltaic junction is formed in the wafer by painting one face of the cadmium telluride wafer with an n-type semiconductive material. The opposite face of the wafer is painted with an electrically conductive material to serve as a current collector. The detector is mounted in a hermetically sealed vacuum containment. The detector is operated in a photovoltaic mode (zero bias) while DC coupled to a symmetrical differential current amplifier having a very low input impedance. The amplifier converts the current signal generated by radiation impinging upon the barrier surface face of the wafer to a voltage which is supplied to a voltmeter calibrated to read quantitatively the level of radiation incident upon the detecting wafer.

Abstract: A magnetic encoding device and method for making the same are provided for use as magnetic storage mediums in identification control applications which give output signals from a reader that are of shorter duration and substantially greater magnitude than those of the prior art. Magnetic encoding elements are produced by uniformly bending wire or strip stock of a magnetic material longitudinally about a common radius to exceed the elastic limit of the material and subsequently mounting the material so that it is restrained in an unbent position on a substrate of nonmagnetic material. The elements are spot weld attached to a substrate to form a binary coded array of elements according to a desired binary code. The coded substrate may be enclosed in a plastic laminate structure. Such devices may be used for security badges, key cards, and the like and may have many other applications.