Abstract: Systems and methods presented herein provide for optical surveillance using modulated lasers, or other forms of light, and optical detection. In one embodiment, an optical surveillance system includes a light source, such as a laser or light emitting diode, and a signal generator operable to modulate the light source. The system also includes a detector operable to detect the modulated light source and a processor communicatively coupled to the detector to distinguish the modulated light source from other detected light based on the modulating waveform of the modulated light source. The processor is also operable to determine a presence of an object between the laser and the detector based on an obscuration of the laser pulses on the detector.

Abstract: Systems and methods are presented herein that provide for ignition of explosive devices through electric and/or electromagnetic discharge. In one embodiment, an electrostatic discharge is directionally propagated through air to conduct electric current to the explosive device. The electric current may ignite the explosive device via heat, via triggering of ignition circuitry, via induced electric current conduction to the explosive material therein and/or via direct electric conduction to the explosive material therein. Alternatively, or in addition to, electromagnetic energy may be directionally propagated to the device through a waveguide. Such electromagnetic energy may be in the microwave region and may heat and/or induce electric current in the explosive device. In either instance, the directionally propagated energy may be time varying.

Abstract: Systems and methods are presented herein that provide for ignition of explosive devices through electric and/or electromagnetic discharge. In one embodiment, an electrostatic discharge is directionally propagated through air to conduct electric current to the explosive device. The electric current may ignite the explosive device via heat, via triggering of ignition circuitry, via induced electric current conduction to the explosive material therein and/or via direct electric conduction to the explosive material therein. Alternatively, or in addition to, electromagnetic energy may be directionally propagated to the device through a waveguide. Such electromagnetic energy may be in the microwave region and may heat and/or induce electric current in the explosive device. In either instance, the directionally propagated energy may be time varying.

Abstract: Systems and methods are presented herein that provide for ignition of explosive devices through electric and/or electromagnetic discharge. In one embodiment, an electrostatic discharge is directionally propagated through air to conduct electric current to the explosive device. The electric current may ignite the explosive device via heat, via triggering of ignition circuitry, via induced electric current conduction to the explosive material therein and/or via direct electric conduction to the explosive material therein. Alternatively, or in addition to, electromagnetic energy may be directionally propagated to the device through a waveguide. Such electromagnetic energy may be in the microwave region and may heat and/or induce electric current in the explosive device. In either instance, the directionally propagated energy may be time varying.

Abstract: Systems and methods are presented herein that provide for ignition of explosive devices through electric and/or electromagnetic discharge. In one embodiment, an electrostatic discharge is directionally propagated through air to conduct electric current to the explosive device. The electric current may ignite the explosive device via heat, via triggering of ignition circuitry, via induced electric current conduction to the explosive material therein and/or via direct electric conduction to the explosive material therein. Alternatively, or in addition to, electromagnetic energy may be directionally propagated to the device through a waveguide. Such electromagnetic energy may be in the microwave region and may heat and/or induce electric current in the explosive device. In either instance, the directionally propagated energy may be time varying.

Abstract: Systems and methods are presented herein that provide for ignition of explosive devices through electric and/or electromagnetic discharge. In one embodiment, an electrostatic discharge is directionally propagated through air to conduct electric current to the explosive device. The electric current may ignite the explosive device via heat, via triggering of ignition circuitry, via induced electric current conduction to the explosive material therein and/or via direct electric conduction to the explosive material therein. Alternatively, or in addition to, electromagnetic energy may be directionally propagated to the device through a waveguide. Such electromagnetic energy may be in the microwave region and may heat and/or induce electric current in the explosive device. In either instance, the directionally propagated energy may be time varying.

Abstract: An overspeed control system which is electropneumatic and automatic in its operation is supplied. An engine speed sensing transducer supplies input signals to an electronic monitor which determines if an overspeed condition is about to occur and turns on a warning indicator. If further overspeed condition occurs the monitor supplies an output signal to a solenoid operated air supply control valve which vents high pressure air to a pneumatically operated valve which shuts off the engine air intake. Means are provided for testing the operation of the electronic and pneumatic components of the system independent of the operation of the engine to ensure reliability of the system.