Abstract: The present invention relates to a device wherein fluid or air-induced instability is converted into a flow sensing mechanism by building a CPW (Coplanar Wave Guide) resonator. Depending on the flow rate, periodic transitions between two bistable states emerge. Owing to the dependence of the transition period and the flow rate, the use of this effect for on-chip flow rate sensing is achieved with this invention. Moreover, the present invention ensures a flow rate sensor to be used in the ventilation machines for the treatment of the COVID-19 pandemic.

Abstract: According to one embodiment, a detection apparatus includes a pair of conductors configured to detect an electromagnetic wave occurring due to a discharge phenomenon in a target apparatus, wherein the pair of conductors are arranged in a near field region of the target apparatus in which the electromagnetic wave occurs.

Abstract: The present disclosure relates to a system for detecting movement of a microelectromechanical system (MEMS) device. The system uses a drive voltage signal source for generating a low frequency drive voltage signal for driving the MEMS device. An excitation signal source may be used for generating an excitation signal which is also applied to the MEMS device. The excitation signal has a frequency which is above a physical response capability of the MEMS device, such that operation of the MEMS device is not significantly affected by the excitation signal. A sensing impedance is used to help generate a signal which is responsive to the capacitance of the MEMS device. The capacitance of the MEMS device changes in response to movement of the MEMS device. An output subsystem is provided which responds to changes sensed by the sensing impedance, and which produces an output voltage signal. A filter filters the output voltage signal to produce a filtered output voltage signal.

Abstract: One aspect of the invention provides an interconnect between a stretchable electronic element and a circuit on a rigid or flexible printed circuit board (PCB Circuit), the stretchable electronic element is operable to be mechanically coupled to a substrate which deforms, and the stretchable electronic element will deform with the substrate and may or may not change an electrical characteristic as a result, the stretchable electronic element comprising one or more electrical pathways; the PCB Circuit configured to communicate electronically with the stretchable electronic element and comprising at least one circuit board extending from the stretchable electronic element to an electrical circuit on the PCB Circuit; wherein the interconnect comprises an electrical coupling between the electrical pathways of the stretchable electronic element and the PCB Circuit; and wherein the interconnect simultaneously prevents the connection between the stretchable electronic element from failing when the stretchable substra

Abstract: A compliant ground block for a testing system for testing integrated circuit devices is disclosed. The compliant ground block includes a plurality of electrically conductive blades in a side by side generally parallel relationship. The blades are configured to be longitudinally slidable with respect to each other. The block also includes an elastomer configured to retain the plurality of blades. Each blade of the plurality of blades includes a first end and a second end opposite to the first end in the longitudinal direction. The plurality of blades is arranged so that the first end of each blade of the plurality of blades is opposite to the first end of an adjacent blade in the longitudinal direction so that the first end of one blade is adjacent the second end of the adjacent blade. The elastomer is at least tubular (e.g., hollow or solid cylindrical) in part and non-conductive.

Abstract: An output module includes a first connection terminal, a second connection terminal, a power supply terminal, a controller, an output device, and a first cutoff switch. The first connection terminal is connected to a high potential side terminal of an external load. The second connection terminal is connected to a low potential side terminal of the external load. The power supply terminal is provided with an external power supply from an external power source. The output device is configured to operate by receiving a power supply generated by or based on the external power supply and to output an analog voltage or an analog current of a value instructed by the controller toward the first connection terminal. The first cutoff switch is configured to be controlled by the controller to open and close a first path between the second connection terminal and a ground.

Abstract: The invention relates to an apparatus for detecting a key press comprising a circuit substrate, to a key module with a key cap and a movement mechanism, and to a device for detecting the movement of the key cap, wherein this device comprises an electrical resonance circuit with a primary coil and a secondary coil with a short-circuited winding, which secondary coil is moved with the key cap, wherein the primary coil and the secondary coil are inductively coupled to one another, and the strength of the inductive coupling between the primary coil and secondary coil and thus at least one physical variable of the resonance circuit change during the movement of the key cap. The invention also relates to a keyboard comprising one or more such apparatuses and to a method for detecting a key press.

Abstract: Certain aspects of the present disclosure provide methods and apparatus for closed-loop control of a system using one or more electron paramagnetic resonance (EPR) sensors located on-site. With such EPR sensors, a change can be applied to the system, the EPR sensors can measure the effect(s) of the change, and then adjustments can be made in real-time. This feedback process may be repeated continuously to control the system.

Abstract: A new test system includes a programmed device having an input port for receiving a signal for testing or measuring on the programmed device, and a reprogrammable test accessory having an output coupled to the input port of the programmed device. The reprogrammable test accessory further includes a test port structured to accept one or more test signals from a Device Under Test (DUT), and a reprogrammable processor. The reprogrammable processor may further include reprogrammable standards and protocols, reprogrammable triggers and margin detection, reprogrammable link training, reprogrammable handshaking, and reprogrammable setup and control facilities for either or both of the DUT and the programmed device.

Abstract: A method of determining polymerisation of transformer insulation within a transformer. The method includes the steps of measuring a first and second moisture activity of oil in a transformer, and a first and second temperature of the transformer. The method further includes calculating the ratio of the gradients of the moisture equilibrium curves associated with the moisture activity and the temperature. The calculated ratio can then be used to characterise the polymerisation of the insulation and age of the transformer.

Abstract: The present disclosure provides a system for perceiving an operating state of a large power transformer based on vibro-acoustic integration, including a perception layer, a network layer, and a diagnostic layer, where the perception layer is used for monitoring, in real time, a state parameter for a coupling vibration signal and an acoustic signal of each of a transformer core, a winding, a clamp and a housing, a state parameter of each of a vibration signal and an acoustic signal during a gear position change of an on-load tap changer (OLTC), and preliminarily diagnosing and analyzing monitored data. The system can monitor the operating state of the OLTC online for a long time, flexibly configure the sensor channel and the sensor type according to different application requirements, automatically acquire and identify the gear position change, and correctly identify and process a gear position corresponding to the monitoring signal.

Abstract: A radio frequency sensor assembly includes a sensor casing disposed around a central hole, the sensor casing including a first conductive cover and a second conductive cover. The assembly includes a cavity disposed around the central hole and includes a dielectric material, the cavity being bounded by a first major outer surface and a second major outer surface along a radial direction from a center of the central hole, where the first conductive cover is electrically coupled to the second conductive cover through a coupling region beyond the second major outer surface of the cavity, and electrically insulated from the second conductive cover by the cavity and the central hole. The assembly includes a current sensor electrically insulated from the sensor casing and including a current pickup disposed symmetrically around the central hole, the current pickup being disposed within the cavity and being insulated from the sensor casing.

Abstract: An apparatus for inspecting light emitting elements, a method of inspecting light emitting elements using the apparatus, and a method of manufacturing display device using the apparatus are provided. The apparatus includes a flow path unit extending in one direction and including a flow path along which a solution in which light emitting elements are mixed moves, at least one alignment unit to which the flow path extends from at least a portion of the flow path unit, a packaging unit at an end of the flow path unit and in which the light emitting elements are stacked, and a plurality of alignment electrodes on an outer surface of the alignment unit.

Abstract: The invention relates to an apparatus for detecting a key press comprising a circuit substrate, a key module with a key cap and a movement mechanism, and a device for detecting the movement of the key cap, wherein the movement mechanism has at least one movement element wherein this device comprises an electrical resonance circuit with at least one capacitor and with a primary coil and comprises a secondary coil wherein the device for detecting the movement of the key cap comprises a measuring device for detecting and/or processing at least one physical variable of the electrical resonance circuit, which variable changes during the movement of the key cap, and outputs at least one electrical signal that is dependent on the change in the physical variable. The invention also relates to a keyboard comprising one or more such apparatuses and to a method for detecting a key press.

Abstract: A system includes a memory component and a processing device, operatively coupled with the memory component, to receive a request to perform a first test of memory components at a test platform, identify test resources of the test platform that are associated with the memory components, identify, among the test resources, a subset of test resources that are not being used by a second test of the memory components at the test platform, and assign, based on the subset of the test resources, a test resource of the test resources to obtain an assigned test resource for use by the test.

Abstract: A direct-current power supply applies a DC voltage to test semiconductor devices. A current detection unit detects a leakage current of a test circuit in which test semiconductor devices are included. A measuring instrument records a pulse waveform of the leakage current. An analyzer analyzes reliability of test semiconductor devices included in the test circuit based on the recorded pulse waveform.

Abstract: A method for testing at least one single chip in a wafer probing system, at least comprising: providing an adapter plate having an interface surface for contacting a vacuum chuck of the wafer probing system, the adapter plate being configured to accommodate the at least one single chip in a cutout with a chip rear surface being flush with the interface surface; loading the adapter plate with the at least one single chip into the wafer probing system; determining an exact position of the at least one single chip in the adapter plate in the search area; and testing the at least one single chip with test routines stored in a controller of the wafer probing system. A device and an adapter plate for testing at least one single chip in a wafer probing system.

Abstract: An oxygen concentration meter includes a zirconia sensor, a resistor, a constant-current circuit, a resistance detection section, and an oxygen concentration detection section. The resistor is connected in parallel to the zirconia sensor. The constant-current circuit is connected in parallel to the zirconia sensor and the resistor, and supplies an electric current. The resistance detection section detects the resistance of the zirconia sensor on the basis of the voltage of the zirconia sensor in accordance with the supplied electric current. The oxygen concentration detection section detects the oxygen concentration of gas to be measured that is supplied to the zirconia sensor, on the basis of the voltage of the zirconia sensor resulting from an oxygen concentration difference between the gas to be measured and reference gas.

Abstract: A circuit and method for detecting crack damage of a die are provided. The circuit comprises: a test circuit located within a seal ring of the die for outputting a pulse detection signal; a crack detection loop arranged outside a guard ring of an internal processing circuit of the die, having an input end connected to an output end of the test circuit and an output end connected to an output pin of the die; and a relay driving unit arranged between the input end and output end for increasing a capability of transmission of the pulse detection signal, wherein the seal ring surrounds the whole die; in a test mode, the test circuit outputs the pulse detection signal to the crack detection loop, and a test machine determines whether the die is damaged by a crack by reading a signal on the output pin of the die.

Abstract: A sensing apparatus in the present disclosure is configured to measure magnetic flux of a magnetic field generated by a magnetic source and flowing through a sample slurry to determine magnetic permeability of the sample slurry. The sensing apparatus comprises a magnetic sensor inside a sensor housing that measures magnetic flux through a sensor housing made of a ferromagnetic material. The magnetic sensor sends measurements of the magnetic flux to a computing device that determines the presence of cementing fluids in the slurry based on the magnetic flux measurements.