Abstract: An electronic imaging device is provided that includes a plurality of sensor elements, such as multiple photosensor arrays, wherein some of the sensor elements have a different numerical aperture value than the others, and wherein the sensor elements can be arranged such that their electrical signals can be combined to produce a composite electrical signal.

Abstract: A system and method for retrofitting a propulsion circuit of an existing Off Highway Vehicle to enable the propulsion circuit to operate as a hybrid energy Off Highway Vehicle propulsion circuit. The hybrid propulsion circuit includes a primary power source, and a traction motor for propelling an Off Highway Vehicle in response to the primary electric power. The traction motor has a motoring mode of operation and a power dissipation mode of operation. The traction motor generates dynamic braking electrical power in the power dissipation mode of operation. An electrical energy storage system includes a chopper circuit coupled to an energy storage device. The storage device is responsive to the chopper circuit to selectively store electrical energy generated in the power dissipation mode. The storage system selectively provides secondary electric power from the storage device to traction motor to assist in propelling the Off Highway Vehicle during the motoring mode.

Abstract: A circuit breaker apparatus is provided and includes a circuit breaker, having a housing surface perpendicular to a plane of a front side of the circuit breaker and internal components, a terminal block structurally coupled to the housing surface, first terminal housings arrayed on the terminal block to each support first components and to be receptive of second terminal housings each of which supports second components, at least some of which are electrically coupled to the internal components, to be electrically coupled to at least some of the first components, and an access block. The access block is disposed on the terminal block and has apertures defined therein to provide for front-side access to the first terminal housings.

Abstract: A circuit card assembly (CCA) comprises a printed circuit board (PCB) having first and second opposing major faces with a first pair of elongated edges extending therebetween. Heat management layers are disposed within the CCA and/or PCB, which extend to said edges, and a thermally conductive bar is engaged in a slot provided in each of the elongated edges. Each conductive bar extends over at least the thickness of the PCB, one face preferably being flush with one of the major faces of the PCB and is thermally connected to the heat management layer(s) by thermal connecting means so as to conduct heat from the or each heat management layer to said bar.

Abstract: In one embodiment, an ultrasonic flow meter is provided for measuring a flow rate of a medium flowing through a conduit, the ultrasonic flow meter comprising two ultrasonic emitters and two ultrasonic receivers mounted to the conduit. The flow rate is determined based on a first time interval of a first ultrasonic signal traveling from the first ultrasonic emitter to the first ultrasonic receiver, and a second time interval of a second ultrasonic signal traveling from the second ultrasonic emitter to the second ultrasonic receiver. In some embodiments, the first and second ultrasonic signals travel in a downstream direction with respect to the flow. In other embodiments, the first ultrasonic signal travels along a first transmission path that forms a first angle between the first transmission path and the flow direction, while the second ultrasonic signal travels along a second transmission path that forms a second and different angle between the second transmission path and the flow direction.

Abstract: An apparatus and method for controlling the operation of a solenoid includes a control circuit configured to receive an activation signal in response to a predetermined condition. The control circuit, in response to said activation signal, provides a first energizing signal to the solenoid for a first predetermined period, and cuts off the first energizing signal for a second predetermined period. The control circuit further provides a second energizing signal to the solenoid for a third predetermined period.

Abstract: A device for sensing the position of a contact carrier of a contact includes a housing, a sensor supported by the housing and a latch that is movable by the contact carrier. The latch has a latch member located in proximity to the sensor and that is generally non-reflective. The sensor is configured to sense a presence or an absence of the latch member at one particular location depending upon the position of the contact carrier. A method of sensing position of a contact carrier of a contact module is also presented.

Abstract: The present disclosure describes a new pushbutton incorporated into new circuit configurations of an improved intelligent electronic device (“IED”), for use in power substation control systems. The new pushbutton is non-mechanical and configured to control a breaker, or other type of substation equipment, after an IED associated with the circuit breaker, or other type of substation equipment, fails to operate. In an embodiment, the new pushbutton may be a low-energy, membrane-type pushbutton. During normal operation, a microprocessor within the IED operates a solid-state device to control the operation of substation equipment. When the IED fails, manually depressing the new pushbutton bypasses the IED microprocessor and manually controls the substation equipment associated with the failed IED.

Abstract: The present invention is directed to the remote control of locomotives, and more particularly to various methods and apparatus employed in implementing systems for such remote control. Contemplated in the present invention are systems and methods for not only reliable remote-control communications, but also the use of repeaters and communications servers to assure reliable, centralized communication between locomotives and operator control units. In another embodiment, there is described a reliable distributed communication mode using an uncorrelated time sequence that does not interfere with a time division multiple access network. Differentiation between the centralized mode and the distributed mode is accomplished by assessing whether a locomotive and control unit is within a rail yard's infrastructure. Moreover, reliability is assured using a coordination server that dynamically routes packets between multiple satellite RCL repeaters based on received signal strength.

Abstract: A method and system for using exhaust temperature anomalies to detect fugitive fueling of a reciprocating internal combustion engine compares an exhaust temperature attribute with a predetermined threshold value for such attribute, which is a function of either the combustion of fugitive fuel within the engine, or an indicator of an operating condition leading to fugitive fueling. If the value of the attribute exceeds the threshold value, remedial action will be taken to avoid engine damage resulting from fugitive fueling.

Abstract: An optical system for a remote video inspection device including an elongated probe for inspection of target objects, comprising: an imager located distally within the probe, wherein the imager receives an image of the target object; a focus lens group located within the probe, the focus lens group comprising a variable aperture and at least one focus lens; a zoom lens group located within the probe, the zoom lens group comprising at least one zoom lens, wherein the movement of the zoom lens group in relation to the imager changes the magnification of the image; a tip lens located further from the imager than the focus lens group and the zoom lens group, wherein the distance between the tip lens and the imager is fixed; wherein a first movement of the focus lens group proportional to the movement of the zoom lens group provides an initial image focus, and a second movement of the focus lens group independent of the movement of the zoom lens provides a final image focus and proportional changes to the size of

Abstract: A method of determining the zero clearance pressure in a controlled clearance piston gauge. The typical method includes pressurizing the cylinder in which the piston resides to a given system pressure. The jacket pressure is then changed and the exhaust gas pressure build-up rate at different jacket pressures is measured. The zero clearance pressure to be where the exhaust gas pressure build-up rate is zero.

Abstract: A module for an electrical distribution system is provided. The module includes a socket board electrically coupled to the electrical distribution system. A plurality of sockets is mounted on the socket board. Each socket defines a port. A sensor is positioned within each port and is electrically coupled to the socket board. The sensors are configured to carry at least one of a primary current and a secondary current. A metering component is electrically coupled to the socket board and configured to measure current carried by the sensors. A communication module is electrically coupled to the metering component and in communication with a monitoring device. The communication module is configured to transmit metering data to the monitoring device.

Abstract: A consist manager for controlling a consist having a lead locomotive and at least one trailing locomotive. A graphical user interface displays a lead locomotive image and at least one trailing locomotive imagers. The graphical user interfaces allows a user to selectively identify train characteristics of each of the first and second locomotives. The consist manager receives a control command and determines a first power operating mode of the first locomotive and a second power operating mode of the second locomotive as a function of the control command and the identified train characteristics. The consist manager controls the first locomotive according to the first power operating mode and controls the second locomotive according to the second operating mode.

Abstract: A system and method for maintaining an airflow path to a turbocharger system on a locomotive operating at high altitude and in a low ambient temperature environment, is provided and includes generating an ambient air stream flow into the turbocharger system to create a compressed air stream flow having a compressed air stream temperature, processing the compressed air stream to create an intercooler air stream having an intercooler air stream temperature, directing at least a portion of at least one of the compressed air stream and the intercooler air stream toward a controllable re-circulation device, operating the controllable re-circulation device to combine the at least a portion of at least one of the compressed air stream and the intercooler air stream with at least one of the compressed air stream flow and the ambient air stream.

Abstract: Battery enclosures include a pre-stressed bottom sheet having a convex surface, at least one vibration isolator disposed along at least a portion of a perimeter of the bottom sheet, a sidewall in contact with the at least one vibration isolator so as to be isolated from the bottom sheet, and at least one strap attached to the bottom sheet, the at least one strap being configured to hold a bottom surface of an outer casing of a battery against the convex surface of the bottom sheet such that internal battery cells are supported by a substantially planar surface.

Abstract: The invention consists of a relay device including: at least one mode change device for changing the relay device from a normal mode to a test mode; an interface for receiving test script from a source; a waveform generator for running the test script received from the source and outputting test results, wherein the source signals the relay to switch from the normal mode to the test mode; a logic device for providing a logic output to the waveform generator when the relay is in test mode and setting the waveform generator to a predetermined value; a data preparation component for calculating current and voltage samples from power system input data; and a data processor for performing phasor estimation and frequency tracking of the current and voltage samples from the power system input data and performing protection calculations to determine the output of the relay.

Abstract: A sigma-delta (??) analog to digital converter with internal synchronous demodulation responsive to a sample clock, reference clock and conversion clock including a sample switching circuit responsive to an AC input to sample the AC input at the sample clock rate; the sample switching circuit including first and second input switches responsive to the reference clock for selectively, alternately sampling the positive and the negative AC input at the reference clock rate; and an inverter circuit responsive to the reference clock and the sample clock for reversing the polarity of signals from the sample clock in synchronism with the reference clock to reverse the sense of the input switches and synchronously demodulating the AC input within the converter.

Abstract: A method of operating a relay device, in an electrical circuit comprising first and second main circuit breakers, and a bus tie circuit breaker connecting the first and second main circuit breakers, the method comprising computing a first positive sequence current phasor for the first main circuit breaker and a second positive sequence current phasor for the second main circuit breaker computing a first positive sequence voltage phasor for the first main circuit breaker and a second positive sequence voltage phasor for the second main circuit breaker; computing a correction of the first positive sequence voltage and second positive sequence voltage to a line-to-neutral phase angle reference if there is any rotation in a potential transformer connection; determining a fault has occurred when a magnitude of a current through at least one of the first main circuit breaker or the second main circuit breaker exceeds a predetermined threshold; determining a phase angle difference by comparing the phase angle of the

Abstract: A method of determining the stuck point in a bore hole is provided. The method employs a device, such as an inductor or coil, for writing magnetic marks into the bore hole casing. The device is incorporated into a retrieval tool so that when a decision is taken to back off from the bore hole and recover any down hole equipment, the magnetic marks can be written on the casing of the bore hole as the retrieval tool is lowered into place. As the retrieval tool is raised in the bore hole, lifting the down hole equipment towards the surface, the magnetic marks are read using a three dimensional magnetic field sensor disposed either in the fishing tool or in the down hole apparatus itself.