Abstract: A test method of testing a test target transistor device is provided, the test method including: arranging the test target transistor device and a test transistor device in series between a high voltage side wire and a low voltage side wire; and causing a gate voltage applied to the test transistor device to be higher than a gate voltage applied to the test target transistor device. A difference between the gate voltage applied to the test transistor device and the gate voltage applied to the test target transistor device may be 5.0 V or less.

Abstract: Aspects of the present disclosure provide techniques for performing a safety test of a laser diode associated with an ophthalmic surgical apparatus. An example method determining a measured slope efficiency of the laser diode based on a plurality of different current levels applied to an input of the laser diode and a plurality of different output power levels associated with the laser diode, determining an expected slope efficiency of the laser diode based on a measured operating temperature of the ophthalmic surgical apparatus, determining a result of the safety test of the laser diode based on the measured slope efficiency of the laser diode and the expected slope efficiency for the laser diode, and outputting an electrical signal indicating a result of the safety test of the laser diode.

Abstract: A method, and device for performing the method, of compensating electromagnetic interference on the output signal of a sensor, wherein a pre-determined singular number or a plurality of at least temporarily current-carrying electrical conductors in the vicinity of the sensor are classified as interference signal sources possibly influencing the output signal of the sensor, in which the output signal of the sensor is detected, and it is determined for each of these interference signal sources whether it is currently current-carrying. Either a fixed correction variable or a correction variable determined on the basis of the detected instantaneous current strength in the current-carrying conductor is detected for each current-carrying interference signal source. The output signal of the sensor is corrected based on the detected correction variables.

Abstract: A position detection device, configured to detect a position of a shaft that moves forward and backward in an axial direction, is provided with an excitation coil that generates an alternating magnetic field; a target fixed to the shaft and interlinked with a magnetic flux of the alternating magnetic field; and a detection coil in which the magnetic flux of the alternating magnetic field is interlinked. The detection coil has a first portion and a second portion in which an induced voltage is generated when the magnetic flux of the alternating magnetic field is interlinked, and a connection portion connecting the first portion and the second portion. The first portion and the second portion respectively extend along a coil longitudinal direction parallel to the axial direction, and at least a portion of each is aligned perpendicular to the coil longitudinal direction.

Abstract: A failure detection device includes a first, second and third switch units, and a failure detection unit detecting an ON failure of the first switch unit and the second switch unit. The failure detection unit includes a voltage application unit applying a specified voltage to the connection point in a superimposed manner when all of the first, second, and third switch units are controlled to be turned off, a voltage detection unit detecting a voltage of the connection point in an application state by the voltage application unit, and an ON failure determination unit determining that at least one of the first and second switch units has an ON failure when the voltage detected by the voltage detection unit is not greater than or equal to a threshold.

Abstract: The main object of this disclosure is to enable real-time impedimetric detection which provides greater sensitivity to scale formation in stainless steel tubes, as minimal changes on the capillary surface are detected in the form of an increase in the overall impedance of the system for systems in flow with real-time detection. Thus, the apparatus of the present disclosure includes at least one potentiostat, at least one working electrode (WE), at least one reference electrode (RE) and at least one counter electrode (CE), and at least one tube with an opening adapted to pass a fluid flow and at least two polymeric connectors at the ends, in which the working electrode is connected to the inlet of said tube.

Abstract: This disclosure describes an extended closure sensor design for an electronic device. An electronic device (300) senses, with a magnetic sensor (306), an open or a closed position of the electronic device (300). A lid magnetic field is propagated through a ferromagnetic material (304) by a lid magnet (302) when a lid (310) or similar component of the electronic device (300) is in the closed position, thereby placing the lid magnetic field incident upon the magnetic sensor (306). In the open position, the lid magnetic field is materially absent and a bias magnet (308) causes a bias magnetic field to be incident upon the magnetic sensor (306).

Abstract: An apparatus for monitoring a status of a relay circuit includes relay circuits configured to apply driving power to battery management devices, a microcomputer configured to output relay control signals for turning on/off the relay circuits, and a current application/detection circuit configured to apply a current to each of the relay circuits that are turned on by the relay control signals output from the microcomputer, and to convert and detect a total current applied to the turned-on relay circuits to a voltage level, wherein the microcomputer compares a current detected through the current application/detection circuit while selectively turning on/off the relay circuits and a current calculated corresponding to the number of relay circuits to which relay-on signals have been output up to a current point, and determines an operation status of the relay circuits according to whether the currents are equal within a specified error range.

Abstract: Apparatus and method for automatically measuring precipitation using a precipitation-collection bowl configured to selectively spin around a vertical axis under control of a controller in order to empty, from time-to-time, any collected precipitation, as well as expelling debris that may land on the bowl. In some embodiments, a load cell is configured to weigh the bowl and collected water to determine the amount of collected precipitation and report the amount of collected precipitation to external equipment. Some embodiments use an electrical motor, such as a gearmotor or stepper motor, to spin the bowl. Some embodiments periodically measure the weight of the motor and bowl, and detect debris by sensing a sudden short-term change in a rate of measured precipitation.

Abstract: Provided is a quantum current transformer based on a bidirectional light compensation technology, including an annular cavity, a plurality of quantum probes, a front-end laser source, a back-end laser source, and a quantum processing system. The plurality of quantum probes are installed in the annular cavity and distributed in a circumference, the plurality of quantum probes are sequentially connected in series through an excitation optical fiber, and two quantum probes at both ends of a series light path are respectively connected to the front-end laser source and the back-end laser source outside the annular cavity through excitation optical fibers. The quantum processing system is connected to the plurality of quantum probes through a plurality of collection optical fibers.

Abstract: A coaxial waveguide-based geotechnical multi-point deformation sensor and an adjustable gauge-length measurement method are provided. The coaxial waveguide-based geotechnical multi-point deformation sensor includes an outer conductor, open at opposite ends and hollow inside; magnetic metal support frames, inside the outer conductor, sequentially spaced along an axial direction of the outer conductor and each having a through-hole; an inner conductor inside the outer conductor and passing through each through-hole; and annular magnets, surrounding the outer conductor and configured to move along it, driving the nearest magnetic metal support frame to follow its movement. Each magnetic metal support frame acts as a reflection point. By reconstructing the interference spectra of any two reflection points, a gauge-length can exist between any two of the magnetic metal support frames.

Abstract: The present invention relates to a system (100a or 100b) for determining the details of a physical parameter in wire harnesses. The existing systems require multiple measurement cycles. The system provides a single setup to measure multiple wire harnesses. The system includes a measuring unit (40) adapted to measure the electrical parameters across a first wire harness (20c) and a second wire harness (30) when electrical parameters are supplied thereto at positions (50 and 60, 70 and 180), a workstation (210) receives measured electrical parameters from the measuring unit (40) and adapted to determine identicalness details of the second wire harness (30) based on the received measured electrical parameters and a display unit (13) is adapted to display the determined results. The present invention also provides a method (200a or 200b) for determining identicalness details amongst wire harnesses.

Abstract: A device for detecting a function of a contactor, the contactor is configured to short three-phase phase lines of an elevator motor together by closing contacts, the device including: a voltage signal source coupled with the contactor; a voltage detection unit coupled with the three-phase phase lines of the elevator motor; a switching unit arranged between the contactor and the voltage signal source and between the voltage detection unit and the three-phase phase lines, in a detection mode, the switching unit is configured to conduct the voltage signal source to the contactor to provide a voltage detection signal to the three-phase phase lines via the contactor and to conduct the voltage detection unit to the three-phase phase lines, the voltage detection unit being configured to measure voltage of the three-phase phase lines and to output measurement to a control unit.

Abstract: Systems and methods for locating buried utilities in conjunction with associated electromagnetic marker devices are disclosed.

Abstract: Provided is a testing apparatus including: a light emission control unit which causes a plurality of light emitting elements to be tested to emit light; a light measurement unit which receives the light emitted from the plurality of light emitting elements and measures wavelengths of the received light; and a determination unit which determines whether there is an abnormality in at least one light emitting element on the basis of intensity distributions of the wavelengths of the light, which is emitted from the plurality of light emitting elements, measured by the light measurement unit. The testing apparatus may further include: a light source; an optical system which irradiates the plurality of light emitting elements with light emitted from the light source; and an electrical measurement unit which measures a photoelectric signal obtained by each of the plurality of light emitting elements photoelectrically converting the light radiated by the optical system.

Abstract: A malfunction detection method detects a malfunction in an electronic control device. The electronic control device includes a normal power supply terminal connected to a normal power supply mounted on a vehicle, a starting power supply terminal connected to a starting power supply, a controller activated by supply of a normal voltage, and a wake-up circuit having a wake-up switch to open and close a power supply path from the normal power supply terminal to the controller. The wake-up circuit turns on the wake-up switch when a starting voltage input to the starting power supply terminal is equal to or greater than an ON threshold. The malfunction detection method includes determining by the controller that the wake-up switch has an ON sticking malfunction when the normal voltage is equal to or greater than a threshold and the starting voltage is less than the ON threshold.

Abstract: A computer system including a processor device is provided configured to monitor, by acquiring at least one measured magnetic field value from a magnetic-field sensing device of a vehicle, a surrounding magnetic field of the vehicle, record a position at which the magnetic field was monitored, the position being acquired from a position-sensing device of the vehicle and to provide an indication of strength of the magnetic field and said position to other vehicles.

Abstract: A system may include a passive floating attenuator configured to receive an analog physical quantity and attenuate the analog physical quantity to a floating attenuated signal defined by voltage nodes other than the voltage nodes of the analog physical quantity, an anti-aliasing filter configured to filter the floating attenuated signal to generate a filtered attenuated signal, and a switched-capacitor sampling circuit comprising a plurality of switches configured to sample the filtered attenuated signal.

Abstract: A magnetic resonance scanning and imaging method and a magnetic resonance imaging system are provided. The method includes: performing a reference scan on a site to be examined, acquiring reference scan data corresponding to a portion of slice positions among a plurality of slice positions, and generating, according to the reference scan data, a phase correction coefficient corresponding to each slice position among the plurality of slice positions; and performing, according to the phase correction coefficients, a diagnostic scan on the site to be examined to acquire a magnetic resonance image.

Abstract: An electronic device includes a power detection signal generation circuit configured to receive power to generate a power detection signal, a switch control signal generation circuit configured to generate a switch control signal when a test for monitoring internal nodes is performed, and a monitoring control circuit configured to connect one of the internal nodes to a test node, based on the power detection signal and the switch control signal, and to output a monitoring signal through the test node.