Abstract: A test and measurement system is disclosed that includes an input for receiving a digital bus conducting a plurality of digital values, a display, and a memory. The memory stores hit frequencies for the digital values, and stores data indicating the digital values. The test and measurement system also includes at least one processor coupled to the display and the memory. The processor causes the display to depict the digital values and hit frequencies of the digital values by depicting persistence of the digital values over time and by depicting decay of the digital values over time.

Abstract: Embodiments of the present disclosure may enable an electrical component within an electrical distribution equipment cabinet to be audibly monitored via an electrical fault detection device mounted on the housing of the cabinet. The electrical fault detection device may comprise a sensor to detect a signal emitted from an electrical fault within the cabinet, a transducer to convert the detected signal into an electrical audio signal, and an output socket adapted for an external device that may generate an audible sound based on the detected signal. The detected sensor may be an ultrasound sensor and the detected signal may be an ultrasound emitted from the electrical fault.

Abstract: Embodiments herein provide methods, apparatus and computer systems comprising an input unit for inputting one or more data sets to be processed comprising a capacitance measuring device configured to measure one or more conductive elements on a sensor plane and provide a corresponding data set of measurements obtained from the conductive elements. A computing unit is coupled to the input unit and for processing the data sets; the computing unit comprises at least one processor with non-transient memory. An output unit is connected to the computing unit for outputting data received from the computing unit. A computer program stored in memory comprising instructions that cause the computer to isolate and discharge conductive and reference impedance elements, perform a charge transfer to the one or more conductive elements on the sensor plane, measure the relative difference between the conductive elements and reference impedance element, and store measurements in non-transient memory.

Abstract: A reflectometry system includes at least one measurement means for measuring a reference signal retro-propagated in at least one transmission line, at least one analog-digital converter for converting at least one measured signal into a set of at least one first digital signal and one second digital signal, at least one complex correlator configured to correlate the real reference signal with a complex signal whose real part is formed by a first digital signal of the set and whose imaginary part is formed by a second digital signal of the set, so as to produce a first reflectogram corresponding to the real part of the complex signal and a second reflectogram corresponding to the imaginary part of the complex signal, an analysis module for analyzing at least the first reflectogram and the second reflectogram so as to identify the presence of defects in at least one transmission line.

Abstract: A device comprising a plurality of transistors; interconnect elements coupled to the plurality of transistors is described. The interconnect elements enable the transfer of signals between the plurality of transistors. The device further includes a cooling element associated with the device, wherein the cooling element is configured to maintain a temperature of a circuit having the plurality of transistors and interconnect elements below a predetermined temperature; wherein one or more parameters of the device is optimized to operate at a temperature below the predetermined temperature. A method of implementing a circuit is also described.

Abstract: A measurement system is described, comprising a sampling clock unit, a travelling wave sampler circuit and at least a first analog-to-digital converter and a second analog-to-digital converter. The sampling clock unit is configured to generate a sampling timing for the travelling wave sampler circuit. The travelling wave sampler circuit is configured to receive an input signal. The travelling wave sampler circuit is further configured to provide at least a first time-discrete intermediate signal and a second time-discrete intermediate signal and to sample the first and the second time-discrete intermediate signal with the same sampling timing. The first analog-to-digital converter and the second analog-to-digital converter are configured to receive the first time-discrete intermediate signal sampled and the second time-discrete intermediate signal sampled, respectively.

Abstract: Methods, devices, systems and apparatus for magnetic resonance imaging are provided. In an example, a method includes: obtaining M imaging data sets collected by a receiving coil array including N coil channels under M radio-frequency excitations, determining odd echo phase information and even echo phase information for each of the imaging data sets, mapping M odd echo data sets and M even echo data sets of the imaging data sets as a virtual imaging data set for a virtual coil array that includes N×M×2 virtual coil channels, and performing parallel magnetic resonance imaging based on the odd echo phase information and the even echo phase information of each of the imaging data sets, the virtual imaging data set and parallel reconstruction reference data.

Abstract: A platelet impedance measurement system including an electrode assembly allows for measurement of platelet function in blood. The assembly includes a substrate that acts as a substantially rigid base and includes an electrode. A portion of the electrode is exposed such that, when the electrode is placed in blood, the exposed portion is in contact with the blood for measuring impedance changes as platelets adhere to the electrode. Wires of the electrode can be attached to each end of the substrate and can run within a groove along a portion of the substrate. The substrate includes an open area where the wires in the groove exit and re-enter the substrate at the end of the substrate, allowing the wires to be exposed to the blood. The open area includes a brace, ensuring that the exposed wires are held in the appropriate placement relative to each other and to the cuvette.

Abstract: Elastic sleeve (1) for electrically insulating a HV/MV power conductor in a power network, comprising a) a shrinkable or expandable elastic sleeve body (10); b) a receiving space (20) in the sleeve body, for receiving the power conductor; c) a cavity (30) formed in the sleeve body; and d) a divider assembly (40), arranged, at least partially, in the cavity and comprising a plurality of discrete impedance elements, operable as a voltage divider for sensing a voltage of an inner conductor of the power conductor.

Abstract: A magnetic sensor includes a magneto-resistive element configured to output a signal and a detection circuit configured to receive the signal. The detection circuit includes a regulator configured to supply a potential to the magneto-resistive element, a first current path configured to electrically connect the magneto-resistive element to the regulator, a second current path, a switch, and a diagnostic circuit connected to the second current path. The second current path includes, and is configured to electrically connect the magneto-resistive element to the regulator via the resistor. The switch is configured to select one of the first current path and the second current path, and electrically connect the magneto-resistive element to the regulator via the selected one of the first current path and the second current path.

Abstract: The invention relates to an over-the-air (OTA) test system for measuring a performance of a device under test (DUT). The test system comprises an over-the-air (OTA) measurement chamber provided with at least one feedthrough for at least a first air hose and a second air hose. The test system further includes a thermally isolated hollow body inside the OTA measurement chamber, in which the DUT is positioned having at least two openings for connecting a first end of each of the first and the second air hose, and at least one sensor having a connection wire, located within the thermally isolated hollow body. Advantageously, the sensor connection wire is fed through one of the two openings into the thermally isolated hollow body.

Abstract: A multi-turn absolute encoder, an encoding method and a robot are disclosed. The multi-turn absolute encoder includes a rotary shaft, a control circuit board, a magnet, a Hall sensor, a controller, a primary controller, a single-turn absolute encoder and a non-volatile memory. One side of the control circuit board is vertically provided with the rotary shaft. The magnet is connected to the rotary shaft and configured to synchronously rotate about the rotary shaft. The Hall sensor is configured to acquire turn count information of the rotary shaft upon power interruption. The primary controller is configured to calculate an absolute position information of the rotary shaft based on the turn count information of the rotary shaft, a relative position information of the rotary shaft and the absolute position information of the rotary shaft stored in previous power interruption.

Abstract: The test system provides an array of test probes. The probes pass through a first or upper probe guide retainer which has a plurality of slot sized to receive the probes in a way that they cannot rotate. A plurality of flex circuits at the different heights engage bottom probe ends at their respective height levels and flex circuits continue the electrical connection from the probes to a load board. The test probes are bonded to the flex circuits by ring shaped flowable conductive material. The flex circuits are biased against a load board by an elastomeric pad of spaced part conical projections.

Abstract: Provided is a semiconductor testing apparatus that a testing pin is rendered to electrically connect to another testing pin or an external substrate through a conductive layer formed in the guide hole, so that it results in enhancement in various characteristics such as poor electrical contact of the testing pin, space efficiency, noise, and high frequency characteristics, thereby improving reliability in testing results.

Abstract: A method for arc detection in a system including a photovoltaic panel and a load connectible to the photovoltaic panel with a DC power line. The method measures power delivered to the load thereby producing a first measurement result of the power delivered to the load. Power produced by the photovoltaic panel is also measured, thereby producing a second measurement result of power produced by the photovoltaic panel. The first measurement result is compared with the second measurement result thereby producing a differential power measurement result. Upon the differential power measurement result being more than a threshold value, an alarm condition may also be set. The second measurement result may be modulated and transmitted over the DC power line.

Abstract: System for detecting explosive substances and drugs by nuclear quadrupole resonance having a central processing unit (UC) which connects to a storage, data processing, and interface unit (USPI) provided with a user console (1C) and a with a head (CS1) for scanning explosives/drugs around the legs and a head (CS2) for scanning suspicious objects on the ground or that cannot be moved having a radio processing system (SPR) which includes a programmable RF signal generator (DDS) which transmits RF pulses to a power amplifier (AP) coupled to an interface for gain control and for the acquisition of the reflected signal level (IAP), a series-parallel tuning circuit (CA) consisting of a flat spiral ferrite-core coil (L) and two variable capacitors (CV1, CV2) driven by two stepper motors (M1, M2) which are controlled by an automatic tuning matching module (WIAA) through control interfaces.

Abstract: A signal error calibrating method is disclosed herein and includes following steps: filtering an error voltage in a sensor by a low pass filter in a calibration mode; converting the offset voltage to be a digital offset signal by an analog digital signal converter; converting the digital offset signal to be an offset calibrating signal by a digital analog signal converter; transmitting the offset calibrating signal to an input end of the sensor so as to offset an error voltage at the input end of the sensor. After calibrating the error voltage, the analog digital converter in the error calibrating circuit can be used for the need of signal output and the low pass filter is turned off at the same time.

Abstract: A rotor contains a sample. A turbine cap is fitted into an opening of one end of the rotor, and a bottom cap is fitted into an opening of the other end of the rotor. A recess portion is formed in the turbine cap, and a recess portion is formed in the bottom cap. Insert members having a negative linear expansion coefficient are disposed in the recess portions.

Abstract: A magnetic sensor includes a first bridge circuit including a plurality of magnetic field sensor elements, each configured to generate a sensor signal in response to the magnetic field impinging thereon. The first bridge circuit is configured to generate a first differential signal based on sensor signals generated by the plurality of magnetic field sensor elements. The plurality of magnetic field sensor elements include a first, second, and third group of sensor elements. The first group is arranged at center region of the magnetic sensor, the second group is arranged at a first side region of the magnetic sensor and are displaced a first distance from the first group, and the third group is arranged at a second side region of the magnetic sensor, opposite to the first side region, and is displaced a second distance from the first group that is substantially equal to the first distance.

Abstract: An NMR spectroscopy system for studying a region of a sample to be analysed, includes a magnetoresistive transducer made up of superposed planar layers, which receives a response signal of the sample; a system for making an AC current flow, at a supply frequency fc, through the transducer; a system for generating a magnetic field H0 that is constant and uniform throughout a zone of interest in which the sample and transducer are placed; and an exciting coil to generate a magnetic field H1 that is uniform throughout the zone of interest and that varies at a resonant frequency f1; the field H0 is substantially perpendicular to the layers of the transducer. The system further includes a regulating system to ensure that the field H0 and the planar layers remain orthogonal, and a system for detecting a signal of frequency fc?f1, f1?fc or fc+f1.