Abstract: An electronic test apparatus is adapted for testing an electronic component which includes a circuit substrate and a plurality of contact electrodes disposed on the circuit substrate. The electronic test apparatus includes a test seat and a plurality of spring probes. The test seat includes a metallic main body that has a first side adapted to be in contact with the circuit substrate and a second side opposite to the first side, and that is formed with a plurality of spaced-apart probe holes extending through the first and second sides, and a temperature sensor disposed in the metallic main body. The spring probes are adapted to be electrically connected to the contact electrodes and each is positioned in a respective one of the probe holes.

Abstract: A varistor failure detector includes one or more surge detector in communication with a varistor, to detect surges shunted by the varistor and a processor, in communication with the at surge detector(s). The processor is programmed to count surges shunted by the varistor, as indicated by the surge detector(s) and store at least one count representing a cumulative count of surges shunted by the varistor. An indicator of the count may be provided to an operator to indicate that the varistor should be replaced, to avoid catastrophic failure of the varistor.

Abstract: A printed resistive gas detector configuration that is simple, inexpensive and compact, fabricated for incorporation into an electronic device, such as an electronic computing and/or communication device, the printed resistive gas detector configuration designed to continuously monitor for predetermined types of gasses. The printed resistive gas detector configuration manufactured by the use of printing technology to print on a flexible substrate.

Abstract: Damage preventing identification system for electrical conductors and coupling points including at least one identification unit arranged for arrangement to a surface, end cap or cable shoe of an electrical conductor, which identification unit is provided with an encapsulation for arrangement of the identification unit to the electrical conductor, and for housing means for visual and electronic tagging, which identification unit further includes means for measuring temperature and/or current.

Abstract: A device for monitoring a critical path of an integrated circuit includes a replica of the critical path formed by sequential elements mutually separated by delay circuits that are programmable though a corresponding main multiplexer. A control circuit controls delay selections made by each main multiplexer. A sequencing module operates to sequence each sequential element using a main clock signal by delivering, in response to a main clock signal, respectively to the sequential elements, secondary clock signals that are mutually time shifted in such a manner as to take into account the propagation time inherent to the main multiplexer.

Abstract: Provided is a magnet device for use with a position sensor. The magnet device has a magnetizing direction and has magnetic field intensity components in the magnetizing direction. The magnet device is formed with a groove recessed in the magnetizing direction, so that the magnetic field intensity components are substantially equal in the transverse direction of the magnetizing direction. The present invention further discloses a magnet assembly including the magnet device for use with a position sensor and a sensing system including the magnet assembly, particularly a neutral position sensor. The axial measuring length of a transmission shaft is prolonged with the length of the magnet device remains unchanged to meet the requirements of different customers, and the reliability of the sensing system is improved.

Abstract: An objective of the application is to provide a method for detecting a disturbance in a power system within a digital substation and an apparatus using the same. The method includes: sensing electrical parameters at an end of a transmission line; sampling the sensed electrical parameters; extracting traveling-wave information from high frequency component of the samples using a signal processing method; and if the extracted traveling-wave information indicating occurrence of the disturbance, transmitting the extracted traveling-wave information to an intelligent electronic device of the digital substation from a merging unit or non-conventional instrument transformer of the digital substation. As compared with the amount of the sample data of the sensed electrical parameters, the amount of the data representing the extracted traveling-wave information is reduced.

Abstract: A metal detection apparatus (9) is tested with a test device (7) having at least one test article (79), movable through a detection zone (60). The test article is moved through the detection zone along a first transfer axis (ca) and a first input signal is measured. A first threshold (th1) is determined, where an amplitude of the first input signal exceeds the first threshold (th1). Then, an identical test article is moved through the detection zone along a further transfer axis (ta; . . . ) and a further input signal is measured and a further threshold (th2; . . . ) is determined, where an amplitude of the further input signal exceeds the further threshold (th2; . . . ). The first or further threshold (th1; th2; . . . ) is selected in the signal processing path (4) whenever the test article is moved along the related transfer axis (ca; ta; . . . ).

Abstract: A hand-held locating apparatus comprises at least one hand-held locating device for acquiring locating data on objects that are hidden below a surveyed surface and are to be located, and comprises a position sensor for sensing position data of the locating device in relation to the surveyed surface. The locating system includes at least one evaluation device for determining directionally and/or spatially resolved location information from the locating data in a first mode of operation of the locating system without repositioning the locating device in relation to the surveyed surface and for determining at least three-dimensional locating information from the locating data and the position data by assigning locating data to position data in a second mode of operation. Also disclosed is a method for locating objects hidden below a surveyed surface, wherein the at least two modes of operation of the locating system can be selected.

Abstract: An electrical energy storage system includes a battery container, one or more temperature sensors, and a controller. The battery container includes one or more batteries configured to store and discharge electrical energy. The temperature sensors are configured to measure one or more temperatures associated with the battery container. The controller is configured to estimate a rate of heat generation by the one or more batteries based on the measured temperatures, monitor an electric current provided to the one or more batteries, and estimate a resistance of the one or more batteries based on the estimated rate of heat generation and the electric current.

Abstract: A system for measuring the state of degradation of cooking oil in a deep fryer is provided. The system includes a loop of piping fluidly connected to a fryer for selectively allowing flow of oil from the fryer and into the loop and for returning to the fryer. A pump urges the flow of cooking oil through the loop of piping and selectively to urge oil to return to the at least one fryer pot. The loop further comprises a return portion that extends from a discharge of the pump toward a suction of the pump. A sensor is disposed in the return portion of the loop and adapted to measure an electrical property that is indicative of total polar materials of said cooking oil. A vent line is provided in the return portion of the loop.

Abstract: A rotation detection device includes a rotatable body having a tooth tip and a tooth bottom on planes normal to a rotation axis direction, a magnet forming a magnetic field toward the tooth surfaces of the tooth tip and bottom, a magnetic detection element disposed between the rotatable body and the magnet and other than on the rotation axis of the rotatable body, and detecting the magnetic flux densities in the rotation axis direction of the rotatable body at at least two positions, and a magnetic sensor having a signal processor for calculating the rotation angle of the rotatable body according to difference between the magnetic flux densities in the rotation axis direction detected at two positions and difference between the magnetic flux densities in the direction perpendicular to the rotation axis direction and a radial direction of the rotatable body detected at two positions by the magnetic detection element.

Abstract: The present embodiments are directed to locating electrical faults in an electrical circuit, in particular electrical faults in transmission wires of an electrical circuit. Examples of the present embodiments provide a method and apparatus for opening a switch in the electrical circuit to cause an open circuit or discontinuity at the fault; transmitting a signal to be reflected from the open circuit or discontinuity and receiving the signal reflected from the open circuit or discontinuity to determine the location of the fault. Examples are particularly suitable for high voltage systems, for example over 100V.

Abstract: The disclosure relates to a locating system, comprising at least one hand-held locating sensor, which is provided for capturing locating data related to objects to be located that are hidden under an examination surface, a position sensor, which is provided for capturing position data, which can be associated with the locating data, and an evaluating unit, which is provided for determining at least two-dimensional map information from the locating data and the position data and providing said at least two-dimensional map information. According to the disclosure, the locating system comprises at least one data source, which is provided for providing data for the purpose of a modification of the at least two-dimensional map information.

Abstract: A testing system is described, wherein said testing system is configured to perform a multipaction test on a device under test. Said testing system comprises a signal generation unit being configured to stimulate an input of said device under test, a receiving unit being configured to receive and measure at least one output signal of said device under test in order to obtain data related to a multipaction occurrence. Said signal generation unit and said receiving unit are controlled such that both units are operated simultaneously. Said signal generation unit is configured to generate a testing signal for stimulating said input, said testing signal comprising at least two carriers simultaneously. Further, a method for testing a device under test is described.

Abstract: A method for operating a rotation sensor comprising at least four magnetoresistive sensor elements is described. Each sensor element comprises a packet of a ferromagnetic reference layer and a sensitive ferromagnetic layer and a non-magnetic layer separating the reference layer from the sensitive layer. The layers are designed such that the orientation of the magnetization in the respective layer is possible in the longitudinal direction of the layer. The at least one sensor element is formed in a plane in a spiral form with at least one complete winding and the windings are implemented concentrically. The sensor element is bent into a winding in different segments. Adjacent segments enclose an angle between them and each complete winding comprises a predetermined number of segments.

Abstract: A duty cycle is used in conjunction with a powered oscillator to electronically reduce the current draw by reducing the average tail current and thus reducing the sensor radiated emissions without altering an inductive position sensor. The duty cycle enables an on and an off cycling without altering the hardware but providing the improvements.

Abstract: A microfabricated sensor includes a sensor cell with a cell body and a window attached to the cell body. A sensor cavity containing sensor fluid material is located in cell body, open to the window. A signal path extends from a signal emitter outside the sensor cell, through the window and sensor cavity, and to a signal detector. The sensor cell may have an asymmetric thermal configuration, conducive to developing a temperature gradient in the sensor cell. One or more heaters are disposed on the sensor cell, possibly in an asymmetric configuration. Power is applied to the heaters, possibly asymmetrically, so as to develop a temperature gradient in the sensor cell with a low temperature region in the sensor cell, sufficient to condense the sensor fluid in the low temperature region, outside of the signal path.

Abstract: A system for measuring the state of degradation of cooking oil in a deep fryer is provided. The system includes a loop of piping fluidly connected to a fryer for selectively allowing flow of oil from the fryer and into the loop and for returning to the fryer. A pump urges the flow of cooking oil through the loop of piping and selectively to urge oil to return to the at least one fryer pot. The loop further comprises a return portion that extends from a discharge of the pump toward a suction of the pump. A sensor is disposed in the return portion of the loop and adapted to measure an electrical property that is indicative of total polar materials of said cooking oil. A vent line is provided in the return portion of the loop.

Abstract: A system, method, and apparatus for active-mirroring, capacitive monitoring of furniture are provided. More particularly, the invention relates to an active mirroring system for a furniture item that monitors a first sensor type over a first frequency, while applying an inverse first frequency to at least one other sensor type coupled to the same furniture item. As such, the additional sensor types receiving the inverse sampling frequency may be dampened and/or cancelled, thereby preventing interference during monitoring of the first sensor type. In further aspects, a monitoring and mirroring cycle is provided, for sequentially monitoring and mirroring capacitive sensing mechanisms on different portions of a common furniture item.