Abstract: An example method for making downhole measurements may include positioning a tool with a conformable sensor within a pipe in a borehole in a subterranean formation, and generating a first electromagnetic signal using at least one of a plurality of transmitters of the conformable sensor. A first response to the first electromagnetic signal may be measured using at least one of a plurality of receivers of the conformable sensor. At least one of a scale parameter, a pipe parameter, and a stand-off distance between the conformable sensor and the pipe may be determined using the first response.

Abstract: A method for monitoring a power supply connected to a superordinate controller via a signal line, wherein the superordinate controller queries whether the power supply is operating faultlessly at variable intervals, where during faultless operation, a power-good signal is continuously transmitted by the power supply to the superordinate controller via the signal line and, if a fault occurs, an indicating signal is transmitted by the power supply to the superordinate controller via the signal line as a switching sequence of high and low signals such that each signal change of the switching sequence occurs only after a time period that is longer than an expected greatest query interval and each signal of the switching sequence that does not correspond to the power-good signal is shorter than a specified signal duration for indicating a total failure of the power supply, whereby the superordinate controller receives more information than previously.

Abstract: A ZSI testing apparatus includes a fault generation circuit, a plurality of cable assemblies coupled to the fault generation circuit, wherein the cable assemblies are structured to be selectively coupled to selected circuit interrupters, a human machine interface, and a controller coupled. The controller is configured to: (i) selectively cause a fault current to be provided to a number of the cable assemblies, (ii) receive an input from each circuit interrupter that is coupled to one of the cable assemblies, each input being indicative of a trip signal output of the circuit interrupter, (iii) determine based on the received inputs (a) that an error has occurred with respect to operation of the circuit interrupters and (b) a recommendation for fixing the error, and (iv) cause an output indicative of the error and the recommendation to be provided on the human machine interface.

Abstract: A monitoring device is provided for monitoring a semiconductor-based switching element having a control input, a power input, and a power output. The monitoring device includes a charge carrier source for charging the control input of the switching element with electric charge carriers, and a measuring device for detecting a charge carrier drain from the control input of the switching element. The measuring device emits a warning signal if the charge carrier drain lies above a specified threshold value. A corresponding method for monitoring a semiconductor-based switching element is also provided.

Abstract: An electronic device including a printed circuit board has a degradation detection circuit that detects degradation of the printed circuit board at a plurality of different degradation levels, and a warning output unit that outputs a warning in accordance with the degradation level detected by the degradation detection circuit.

Abstract: A contactor failure determining method in includes outputting a control signal for switching a positive-side contactor provided between a positive electrode of a multi-cell battery and a positive electrode of a load to which the multi-cell battery supplies electric power to an open state from a state in which a control signal for controlling the positive-side contactor and a negative-side contactor provided between a negative electrode of the multi-cell battery and a negative electrode of the load to a closed state and a precharge contactor provided between the multi-cell battery and the load to an open state is output, and as a first fixing determining step, determining a presence of fixing of the precharge contactor based on a degree of voltage drop of a voltage applied to the load after the control signal for switching the positive-side contactor to the open state is output.

Abstract: A method detecting a parallel arc in a photovoltaic device, including N (N=1 or N>1) photovoltaic modules, connected to a charge device having a capacitive behavior for the modules, the method including: a) detecting, across main terminals of the device, evolution of voltage over time, at least during formation of the electric arc; b) identifying a negative voltage variation between a first zone with stable voltage and a second zone with stable voltage for a duration of at least 5 ?s, which immediately follows the voltage variation, and c) determining whether the voltage variation is between a maximum value Vmax, greater than or equal to 100 V, and a minimum value Vmin, less than or equal to 30 V, with a fall time of this variation between a minimum duration Tmin greater than or equal to 0.01 ?s and a maximum duration Tmax less than or equal to 10 ?s.

Abstract: A power detector comprising a first and a second bipolar junction/FET transistor. The first transistor is arranged as a common base/gate transistor with its base/gate being biased by a bias voltage and the second transistor is arranged as a common emitter/source transistor with its emitter/source being grounded. The power detector also comprises a diode or current source connected to ground from the emitter/source of the first transistor, in which power detector an input port is connected to the emitter of the first transistor and to the base/gate of the second transistor, and an output port is connected to the collectors/drains of the first and second transistor, said collectors/drains also being connected to a DC supply via a first resistor.

Abstract: A method comprises obtaining information relating to an energy harvesting device from a secondary information source by a server comprising a mapping database, comparing the obtained information to the information in a mapping database by the server, and determining a state of the energy harvesting device as offline and operative.

Abstract: An input device for capacitive touch sensing includes: a plurality of sensor electrodes, the plurality of sensor electrodes comprising: a plurality of receiver electrodes, a plurality of transmitter electrodes, and a reference receiver electrode; and a processing system. The processing system is configured to: drive a first transmitter electrode of the plurality of transmitter electrodes with a transmitter signal, receive a resulting signal via a receiver electrode of the plurality of receiver electrode, the resulting signal comprising effects corresponding to the transmitter signal, receive a reference signal via the reference receiver electrode, and determine a modified resulting signal based on the resulting signal received via the receiver electrode and the reference signal received via the reference receiver electrode.

Abstract: The invention concerns a method for monitoring a cable strand containing multiple electrical lines, such that the cable strand is designed to conduct electrical energy generated by a generator in a wind turbine involving the steps: measuring the temperature of at least two of the electrical lines, comparing the temperatures of said lines, and determining whether the two temperatures deviate from one another by more than a predefined threshold.

Abstract: A particulate matter sensor is provided. The particulate matter sensor includes a particulate matter detection unit that has first and second electrodes separately disposed on a substrate and configured to generate capacitance to correspond to a quantity of a particulate matter accumulated between the first and second electrodes. A signal generator is configured to generate a frequency signal that determines a resonant frequency by the capacitance. A detection result processor is configured to detect a signal magnitude of a predetermined reference frequency in the frequency signal and distinguishes an exhaust level of the particulate matter based on a change of the signal magnitude.

Abstract: A testing device for wafer level testing of IC circuits is disclosed. An upper and lower pin (22, 62) are configured to slide relatively to each other and are held in electrically biased contact by an elastomer (80). The elastomer is precompressed from its natural rest state between a top (22) plate and a bottom (70). Pre compression improves the resilient response of the pins. The pin crowns (40) are maintained relatively coplanar by the engagement of at least one flange (44a-b) against an up-stop surface 90 of plate 20, thereby insuring coplanarity of the crowns. The pin guide (12) is maintained in alignment with the retainer 14 by establishing a registration corner (506) and driving the guide into the corner by elastomers in at least one diagonally opposite corner.

Abstract: A method of making a current sensor is described. The method includes providing a leadframe having a current conductor portion comprising two sections shaped such that a current to be measured flows in directions oriented obliquely or oppositely with respect to each other. Further, the method includes deforming the leadframe to lower the current conductor portion, and mounting an isolator on the current conductor portion. The method also includes mounting a semiconductor chip having a thickness of at least 0.2 mm and comprising two magnetic field sensors composed of four Hall sensors and magnetic field concentrators on the isolator, connecting the semiconductor chip and sensor terminal leads by wire bonds, packaging the semiconductor chip and parts of the leadframe in a plastic housing, and cutting a frame of the leadframe from current terminal leads and the sensor terminal leads.

Abstract: An integrated circuit (IC) is located on an IC chip and includes an integrated voltage regulator circuit that provides an internal supply voltage to the IC. A test mode signal can be received from an external pin of the IC chip. In response to the test mode signal, the IC can enter a test mode where the internal supply voltage is provided to components of the IC. Also in the test mode, voltage characteristics of the internal supply voltage are measured to produce an analog held value. The measurements occur in an analog domain and over a plurality of sample-and-hold windows. Upon completion of a measurement window, the analog held is converted to a digital value. The digital value is then stored in a memory circuit. The digital value is provided from the memory circuit to a reader device external to the IC.

Abstract: This disclosure provides a method and system for extending the capability of a proximity detection system that is based on use of low frequency magnetic fields, to avoid conflicts in crowded work sites. The improvement is attained by combining the advantages of these low frequency magnetic fields with the advantages of much higher frequency, radiated (RF) signals that are controlled to be produced at the same time, concurrent with each other, in a coordinated and/or synchronous manner.

Abstract: A fluid pressure actuated device for establishing electrical contact includes a first side and a second side each defining a respective cavity. A respective flexible membrane is positioned across each cavity. Each membrane has an outer side that carries an electrically conducting contactor. The contactors are electrically connected to a conducting connector that extends at least partially through the device. Each flexible membrane extends and withdraws moving the associated electrically conducting contactor in opposing directions when fluid pressure is increased and decreased in the associated cavity. Each membrane may have an undulating shape by including concentric frustum portions that narrow in opposite directions. The contacts may have neutral positions that are internal relative to outer surfaces of the device until fluid pressure is increased in the respective cavities causing extension by movement of the membranes.

Abstract: Monitoring a brake that includes first and second braking surfaces and a magnetizing device that, in response to the electric current supplied to them, are arranged to generate a magnetic field that is arranged to move the braking surfaces from a closed state, in which the braking surfaces are connected to each other, to an open state, in which the braking surfaces are separated from each other. Determining the electric current of the brake as the braking surfaces begin to move from the closed state to the open state, determining the maximum electric current of the magnetizing device of the brake in the open state, determining the condition of the brake as a current ratio from the electric current measured as the braking surfaces start to move to the maximum electric current.

Abstract: A rotation angle detector has a rotation angle sensor and a microcomputer, where the sensor detects a change of a magnetic field of a magnet that rotates with a shaft. The microcomputer has a first corrector for correcting a pre-correction mechanical angle, based on a first correction value that corrects an error due to an assembly process for assembling the magnet and the sensor, and a second corrector for correcting the pre-correction mechanical angle based on a second correction value that corrects an error due to a spill magnetic flux that is generated by a supply of an electric current to a winding wire. In such configuration, the rotation angle detector may correct the error due to the spill magnetic flux, thereby enabling an accurate detection of a mechanical angle.

Abstract: Provided is a test apparatus including an optical test signal generating section that generates an optical test signal; an optical signal supplying section that supplies the optical test signal to a device under test that is a testing target among a plurality of the devices under test; a first optical switch section that selects, from among optical signals output by the plurality of devices under test, the optical signal output by the device under test that is the testing target; and an optical signal receiving section that receives the selected optical signal.