Abstract: Probes, probe blades, tools for probe blades, blade holders, and probe systems for electrically testing a device under test (DUT). In some examples, the probe blades are configured to provide a Kelvin electrical connection with the DUT. In some examples, the probe blades include an alignment structure configured to engage with a blade holder when the probe blade is received within a blade-receiving region of the blade holder. The blade holders are configured to separably and operatively attach a probe blade to a probe system. In some examples, the blade holders include the probe blade. The probe systems are configured to electrically test the DUT and include the blade holder.

Abstract: A test system (10) for testing an electric device (30), in particular a high-voltage device, has a portable main device (100) with a housing (140), an electric connection assembly (120, 121) and a mechanical connection assembly (145) and has a portable additional device (200, 300) with a separate housing (240, 340), an electric connection assembly (220, 320) and a mechanical connection assembly (245). The main device (100) can be mechanically connected to the additional device (200, 300) in a releasable manner by coupling the mechanical connection assemblies (145, 245) to form a structural unit, wherein the main device (100) can be electrically connected to the additional device (200, 300) via the first electric connection assemblies (120, 121, 220, 320).

Abstract: A probe tip for an isolated probe having a triaxial cable has a conductive probe tip interface at one end of the cable, a signal conductor, the signal conductor traversing a length of the cable and electrically connected to the conductive probe tip interface, a reference conductor surrounding the signal conductor along the length of the cable, a shield conductor surrounding the reference conductor at least along the length of the cable, the shield conductor and the reference conductor electrically connected at ends of the probe tip, a first insulator between the signal conductor and the reference conductor along the length of the cable, a second insulator between the reference conductor and the shield conductor along the length of the cable, and high magnetic permeability material inside the shield conductor.

Abstract: A voltage monitoring system includes a voltage dividing circuit and a voltage monitoring device. The voltage dividing circuit is configured to divide a power signal to generate an input voltage. The voltage monitoring device includes an input node, a shunt circuit, a first detection circuit and a second detection circuit. The input node receives the input voltage. The shunt circuit is configured to compare the input voltage with a voltage threshold value to selectively operate in a conducted state or a switched-off state, and configured to output a flag signal to indicate the conducted state or the switched-off state of the shunt circuit. The first detection circuit generates a first detection signal corresponding to the input voltage. The second detection circuit generates a second detection signal corresponding to the power signal according to the flag signal and the first detection signal.

Abstract: A semiconductor device includes a first crack detection circuit configured to receive a first external detection signal and output the first external detection signal as a first internal detection signal through a first metal line or configured to receive the first internal detection signal through the first metal line and output the first internal detection signal as the first external detection signal, and a second crack detection circuit configured to receive the first internal detection signal and output the first internal detection signal as a second internal detection signal through a second metal line or configured to receive the second internal detection signal through the second metal line and output the second internal detection signal as the first internal detection signal.

Abstract: The present disclosure provides an apparatus for measuring dynamic on-resistance of a nitride-based device under test (DUT) comprising a control terminal connected to a controller being configured to generate a control signal to switch on and off the DUT. The apparatus comprising a first clamping module, a second clamping module and a driving module. The driving module is configured to sense a state change of the DUT and generate a control signal to switch on and off the first clamping module based on the state change of the DUT such that when the DUT is at an on-state, an output voltage across the first and second output nodes is clamped to indicate a drain-source voltage of the DUT. The provided apparatus can address the overshoot issues in measurement of dynamic on-resistance of GaN device.

Abstract: The disclosed semiconductor testing socket comprises a testing socket body, a guiding frame, and a height adjusting mechanism. The guiding frame is mounted above the testing socket body and is provided with a central insertion opening. The height adjusting mechanism is embedded at the edges of the central insertion opening. The height adjusting mechanism comprises an operable part that can be operated and a movable part that can be moved between a first position located outside the central insertion opening and a second position located within the central insertion opening by operating the operable part. The movable part comprises a supporting surface configured for supporting a specimen to be tested when located at the second position.

Abstract: This invention provides Tesla Photoionization Detector (TPD), which comprises power supply driver board, Tesla coil, gas excitation cell, spectral filter, photosensitive element, amplifying board and data acquisition unit. Tesla coil comprises capacitor, primary and secondary inductance coil. Gas excitation cell is a closed clean cavity made of quartz. The invention uses Tesla coil to compose Tesla Photoionization Detector, utilizing high-frequency high-voltage electromagnetic field generated by Tesla coils, gas to be measured flowing through gas excitation cell is excited into plasma state, meanwhile a specific spectrum is generated. The spectrum of a specific target is collected by spectral filter, then convert spectral signal into electrical signal, which is amplified and processed by data acquisition unit and signal processing to realize detection of gas content. This detector can be used for impurity detection in any background gas. When used in a gas chromatograph, the choice of carrier gas is wider.

Abstract: A double pinned magnetoresistance (MR) multilayer film, a full bridge MR sensor using the double pinned MR multilayer film and a method for manufacturing the full bridge MR sensor are provided in the present invention. The double pinned MR multilayer film comprises: a buffer layer, a first antiferromagnetic layer, a first ferromagnetic layer, a first interlayer, a ferromagnetic reference layer, a spacer layer, a ferromagnetic free layer, a second interlayer, a second ferromagnetic layer, a second antiferromagnetic layer and a cover layer that are stacked in sequence. The first antiferromagnetic layer applies a first exchange bias to the first ferromagnetic layer, and the first ferromagnetic layer applies a first artificial antiferromagnetic coupling to the ferromagnetic reference layer through the first interlayer.

Abstract: A method of automatically selecting a continuous time linear equalization (CTLE) filter includes capturing a response waveform for a channel of a communication link of a device under test (DUT), generating a set of candidate CTLEs, and automatically selecting the CTLE from the set of candidate CTLEs using the response waveform. A test and measurement instrument has a user interface, a port to allow the instrument to connect to a device under test (DUT), and one or more processors configured to execute code to cause the one or more processors to: generate a set of CTLE candidates; capture a response waveform for the channel; and automatically select the CTLE from the set of candidate CTLEs using the response waveform.

Abstract: At least one example embodiment discloses a system including a memory storing instructions and at least one controller configured to execute the instructions to cause the system to obtain a measured speed of an electric machine and a measured position of the electric machine based on output from a sensor, select an observer based on a speed value, obtain an estimated speed of the electric machine and an estimated position of the electric machine using the selected observer, determine a control output based on the measured speed and the measured position, the control output being the measured speed and the measured position or the estimated speed and the estimated position and control the electric machine using the control output.

Abstract: A capacitance sensing system senses frost and ice accumulation in an energy efficient defrost system. The capacitance sensing system comprises a first capacitor including a portion of a metal heat exchanger and a sensor electrode electrically isolated from the metal heat exchanger; a tank oscillator including a second capacitor and an inductor coupled in parallel with each other and with the first capacitor; and a circuit coupled to the tank oscillator. The circuit determines a resonant frequency of the tank oscillator, determines a capacitance value of the first capacitor based on the resonant frequency of the tank oscillator, and transmits a heater activation command in response to determining the capacitance value is greater than a threshold.

Abstract: A measuring apparatus implementing an electrode array and an operating method of the measuring apparatus are provided. The measuring apparatus may include an electrode array configured to measure input signals of an analog domain through electrodes arranged in a target point, main signal processors configured to perform signal processing operations including a digital conversion operation of corresponding input signals of the input signals, respectively, and auxiliary signal processors configured to replace at least one of the main signal processors, and perform at least some of the signal processing operations including the digital conversion operation in response to a replacement condition being satisfied.

Abstract: A controller of a robot includes: a voltage detecting portion that detects a power-source voltage input from a power source; and a determining portion that determines, on the basis of the power-source voltage detected by the voltage detecting portion, whether to perform power-outage processing that guarantees the operation, wherein the determining portion includes a first timer that starts a clock at a point in time when the detected power-source voltage becomes equal to or less than a first threshold voltage that guarantees the operation and makes a determination for performing the power-outage processing in the case in which the power-source voltage does not exceed the first threshold voltage before the time measured by the first timer achieves a prescribed time that is longer than one cycle of the power-source voltage.

Abstract: A test and measurement device includes an input port to receive an input signal, a sampling circuit structured to generate a sample from the input signal, in which generating the sample from the input signal produces an amount of kickout energy, and an energy reducing circuit coupled between the sampling circuit and one or more other components of the test and measurement device, the energy reducing circuit structured to decrease the amount of kickout energy from the sampling circuit. The energy reducing circuit may include or be combined with a pick-off circuit. Methods are also described.

Abstract: A relay welding diagnosing apparatus can lower a risk of erroneous diagnosis while preventing energy of a battery from being discharged uselessly. The relay welding diagnosing apparatus including a positive electrode side relay, a negative electrode side relay, and a capacitor and a load circuit that are connected in parallel between the positive electrode side relay and the negative electrode side relay, which is forced discharge, by connecting the capacitor and the load circuit; and a determining section that, in a case where the negative electrode side relay is not welded, determines whether or not the positive electrode side relay is welded after the active discharge is performed and, in a case where the negative electrode side relay is welded, determines whether or not the positive electrode side relay is welded after passive discharge of the capacitor, which is natural discharge, is performed.

Abstract: The present disclosure relates to an ERT/ECT dual-modality combined three-dimensional sensor. A cover box is sheathed with a shielding box, a plurality of small round holes are formed in the top surface and the side surfaces of the cover box, ERT electrodes are arranged in the small round holes, and ECT electrodes are arranged at the outer sides of the ERT electrodes. The ERT electrodes are connected to an ERT data acquisition box via electrode leads, and the ECT electrodes are connected to an ECT data acquisition box via the electrode leads. An integrated cuboid design in line with the concrete structure is employed. Meanwhile, the dimensions, combination modes, placement modes and positions, supporting structures, shielding devices, electrode leads and leading-out modes of two sets of electrode arrays are subjected to comprehensive optimization design to achieve three-dimensional visual nondestructive monitoring of the moisture intrusion process in the concrete structure.

Abstract: Disclosed are a power transmission line monitoring system and a power transmission line monitoring method. The monitoring method comprises: acquiring, by means of a functional node, monitoring data related to a power transmission line, and transmitting the monitoring data to an edge node; and receiving the monitoring data by means of the edge node, transmitting the monitoring data to a collection node by means of an edge node chain type communication network, and sending, by the collection node, the data to a master station server. In the application, a self-organized edge node chain type network is formed by means of edge nodes, and data transmission is performed by means of the edge node chain type network, so that problem of poor data transmission caused by impossible coverage of a cellular network can be solved.

Abstract: A lithium precipitation detecting apparatus according to an embodiment of the present disclosure includes a measuring unit configured to calculate a charge amount of a battery in a charging process and calculate a discharge amount of the battery in a discharging process; and a control unit configured to estimate a state of charge (SOC) of the battery in the charging process and the discharging process and determine whether lithium precipitation occurs in the battery based on the estimated SOC, the charge amount and the discharge amount.

Abstract: Self-diagnostic method (100) of open-circuit fault, in power switching blocks of a modular inverter comprising a plurality (k=1 . . .