Abstract: A system and method for scanning individuals for illicit objects include the ability to scan a wheeled user transport device and an individual being transported thereby for metallic objects and to determine whether an illicit object may be present, without activating an alarm for the user transport device while detecting illicit objects on the individual.

Abstract: A metal detection system for detecting metal within a body cavity of an individual. The metal detection system includes a first metal detector for detecting metal within an anal/vagina body cavity of an individual, and a second metal detector for detecting metal within an oral/facial body cavity of the individual. A chair supports a first detector sensor and a second detector sensor that connects to the first metal detector and the second metal detector, respectively. The system further includes a processor that interconnects with the first and second detectors. The processor connects to a control panel having indicators responsive to a first output signal and second output signal generated upon detection of metal by the first metal detector and the second metal detector, respectively.

Abstract: A high temperature light scattering measurement device for characterizing certain physical properties of molecules is described. In one embodiment the device includes a sample scattering chamber having at least one detector positioned about the chamber so as to collect light scattered by the molecules to be characterized located within the sample chamber. The sample scattering chamber, detectors and associated optics are located within an oven to maintain the scattering chamber at an elevated temperature. Light to be scattered by molecules in the sample scattering chamber is provided by a laser located outside the oven. Light from the laser is directed along an optical path through the oven wall where it is then focussed by optical elements on the sample chamber.

Abstract: A walk-through metal detection system with split field generation coils excited in phase to generate an electromagnetic field having a substantially uniform vertical field density. A plurality of vertically distributed receiver coils are also provided, each receiver coil connected to a separate detector circuit for detecting disturbances in the generated field caused by the presence of metal objects. The signals are processed to generate an output signal indicative of the individual metal mass (or masses) of objects detected within the generated electromagnetic field. The output signal is compared to a threshold signal, and if greater than the threshold signal, then a metal object is presumed to be present within the electromagnetic field and an alarm is sounded. A remote control may be used by an operator to adjust the threshold signals. Additional processing of the detector circuit outputs differentiates between a single object of large metal mass and multiple objects of combined metal mass.

Abstract: A walk-through metal detection system with split field generation coils excited in phase to generate an electromagnetic field having a substantially uniform vertical field density. A plurality of receive coils are also provided, each receive coil connected to a separate detector circuit for detecting disturbances in the generated field caused by the presence of metal objects. The signals output from the detector circuits are processed in a first embodiment to generate an output signal indicative of the total metal mass detected within the generated electromagnetic field. In a second embodiment, the signals are processed to generate an output signal indicative of the individual lumped metal mass (or masses) detected within the generated electromagnetic field. The output signal is compared to a threshold signal, and if greater than the threshold signal, then an illicit metal object is presumed to be present within the electromagnetic field and an alarm is sounded.

Abstract: A molecular characterization detector includes a scattering cell containing a sample for molecular characterization, a light source for directing a light beam through the cell so that the light beam is scattered by the sample, optical elements for selecting from the scattered light a measurement beam comprising light that is scattered by the sample from a predetermined portion of the cell in a predetermined range of angles relative to the optical axis, and a detector for detecting the measurement beam and providing an output electrical signal representative of the measurement beam. The detector typically selects light scattered from a central portion of the scattering cell at angles in the range of 14.degree. to 16.degree.. A single spherical lens is preferably utilized. As a result, interference from stray scattered light is minimized. A beam dump attenuates the light beam after it passes through the scattering cell. Additional detectors detect light scattered at 90.degree. to the light beam.

Abstract: The detector has two disc shaped magnets that are magnetized through their respective thicknesses. One magnet is fixedly coupled to a container, and the other magnet is left free to slide transversely with respect to the fixed magnet. The magnets are oriented so that the opposite poles of the magnets are adjacent to each other. In the absence of a shock acting on the container, the free magnet remains in a centered position with respect to the fixed magnet. Indicating apparatus is provided to indicate when the free magnet is moved to an off-center position due to an accelerational force, and the direction of the accelerational force. In one embodiment, the indicating apparatus includes a marking device coupled to the free magnet and a recording surface coupled to the container. In another embodiment, the indicating apparatus includes a transparent cover and tabs for retaining the off-center free magnet.

Abstract: A large area pyroelectric joulemeter for measuring the pulsed beam output of a laser. The joulemeter employs a pyroelectric detector element with front and rear conductive surfaces forming electrodes, a relatively massive mounting block with relatively high thermal conductivity and an epoxy adhesive for securing the detector element to the mounting block, the epoxy having relatively high thermal conductivity so that heat can be quickly dissipated out of the detector element. An internal recess in the mounting block accommodates a trimming capacitor and resistor for adjusting the voltage sensitivity of the detector assembly to a constant value. The detector assembly is removably installed within an outer housing having a main base portion and a removable bezel.

Abstract: A nuclear radiation level detector includes an ionization chamber. Within the ionization chamber are spaced electrodes. The space between the electrodes communicates with the atmosphere so as to expose the electrodes to the atmosphere. A voltage source applies a potential across the electrodes. When the atmosphere is not contaminated with nuclear radiation above a reference level, the current flow between the electrodes is nil or substantially so. In the event the atmosphere is contaminated with nuclear radiation above a reference level, a measurable current flows between the electrodes. A measurement and alarm circuit operates an alarm in response to the current flow between the electrodes of a measurable magnitude.

Abstract: Apparatus for automating assembly of shock detectors having an indicator within an inner tube seemingly disposed within an outer tube, the indicator being adapted for indicating when a shock greater than a predetermined magnitude has been experienced, characterized by an assembly line machine for assembling shock detectors including a plurality of stations at which specific jobs are performed and an indexing table for moving a plurality of elements from station to successive station in the assembly line and including respective sub-assemblies for loading an inner tube into an assembly line rotator, a sealer for sealing a first end of the inner tube, an implacement mechanism for placing the indicator within the inner tube, an outer tube loader for loading the outer tube into the assembly line, a subcombination for combining and sealing the inner tube within the outer tube so as to form the shock detector and an unloader mechanism for unloading the shock detector from the assembly line with respective control m

Abstract: A metal detector system which includes an electromagnetic search coil, a gate for diverting portions of a material stream containing metal detected by the search coil to a reject container, and a coupling for isolating vibrations caused by the gate from the search coil. The metal detector system also includes control circuitry for automatically recycling the gate when an obstruction prevents the gate from returning to its normal standby position. A test circuit is provided to test the search coil by closing a conductive loop passing through the electromagnetic field of the search coil.

Abstract: A tilt detector for accompanying goods to be transported to determine when the goods have been transported in a recommended position without being inclined at an angle greater than a pre-determined angle characterized by a first fluid of a first density, a second fluid of a second density, a horseshoe shaped baffle with a trapping end in the form of an inner apex for trapping the second mass under the force of gravity when in a vertical position with its opening end in the opposite direction such that at least a part of the second mass is freed to move out of the baffle when it is tilted beyond a pre-determined angle of tilt; the degree of the sides of the baffle being related to the pre-determined angle of tilt, and a thin container having at least a transparent window for viewing at least the trapping end of the horseshoe shaped baffle for ascertaining if the second mass has been freed such that the tilt detector can be affixed to goods, containers and the like to tell if they have been tilted too much.

Abstract: An apparatus which responds to a predetermined acceleration wherein a droplet of liquid is suspended by a holding means which prevents the droplet from escaping, except that when an acceleration of the holding means occurs which is greater than a predetermined acceleration, then at least a portion of the droplet escapes from the holding means.

Abstract: An improved apparatus for indicating that an acceleration greater than a predetermined acceleration has occured; the apparatus being of the type having a liquid reservoir and an adjacent gas region; the liquid-gas surface resisting deformation due to surface tension. The liquid, gas and surrounding structure are chosen such that the surface tension prevents a rupture of the liquid-gas barrier until an acceleration greater than a predetermined acceleration occurs; at which time at least a portion of the liquid enters the region of the gas. Electrical contacts within the gas region are bridged by the liquid, which liquid is electrically conducting. Means are provided to conduct electricity to and from the contacts such that communication of the forming of the bridge is possible.

Abstract: A device for affording an indication when a predetermined mechanical shock has been received, characterized by a base, or means for attaching to a container to be monitored; structure for measuring when a predetermined acceleration has been received by the container and the device; and an indicator for indicating to an observer that the shock has been received. Disclosed are devices having (1) a mechanical structure with a breaking point; (2) a mechanical structure with a biasing means; and (3) a structure employing an interfacial tension phenomenon. The devices may be of the "go-no go" type or may afford an indication and history of the shock, or acceleration forces, received. Also disclosed are the specific details of the respective embodiments.

Abstract: A device for affording an indication when a predetermined mechanical shock has been received, characterized by a base, or means for attaching to a container to be monitored; structure for measuring when a predetermined acceleration has been received by the container and the device; and an indicator for indicating to an observer that the shock has been received. Disclosed are devices having (1) a mechanical structure with a breaking point; (2) a mechanical structure with a biasing means; and (3) a structure employing an interfacial tension phenomenon. The devices may be of the "go-no go" type or may afford an indication and history of the shock, or acceleration forces, received. Also disclosed are the specific details of the respective embodiments.

Abstract: A tilt detector for accompanying goods to be transported to determine when the goods have been transported in a recommended position without being inclined at an angle greater than a pre-determined angle characterized by a first fluid of a first density, a second fluid of a second density, a horseshow shaped baffle with a trapping end in the form of an inner apex for trapping the second mass under the force of gravity when in a vertical position with its opening end in the opposite direction such that at least a part of the second mass is freed to move out of the baffle when it is tilted beyond a pre-determined angle of tilt; the degree of the sides of the baffle being related to the pre-determined angle of tilt, and a thin container having at least a transparent window for viewing at least the trapping end of the horseshoe shaped baffle for ascertaining if the second mass has been freed such that the tilt detector can be affixed to goods, containers and the like to tell if they have been tilted too much.