Abstract: A tool, system, and method are disclosed for locating a hidden stud and identifying angles on a finished wall. The tool includes an elongated housing, at least one magnet, and at least one level. The housing has a generally planar contact surface disposed opposite a viewing surface. The at least one magnet is secured to the housing such that a magnetic field from the at least one magnet extends from the contact surface. The level is secured to the housing such that the level is viewable from the viewing surface. The at least one magnet, the level, and the housing are sized relative to each other such that a magnetic attraction between the at least one magnet and a metallic element in the wall is sufficient to maintain the tool on the wall without external support.

Abstract: Provided is a nonlinear oscillation detection method at an electric power system, and a recording medium and apparatus for performing the method. The nonlinear oscillation detection apparatus at the electric power system detects various kinds of nonlinear oscillation occurring at the electric power system by applying a nonlinear oscillation precognition algorithm based on a nonlinear dynamic theory to the time series information measured at the electric power system.

Abstract: An accurate position sensor is presented. The sensor operates over 360-degree motion angular motion and includes a coil structure formed on a substrate and a target mounted to be angularly moved over the coil structure, the target being formed of a conducting material in a shape of a spiral of Archimedes. The coil structure includes coils with an arc sufficient to operate over a 360 degree motion of the target, for example between 120 degrees and 360 degrees. Some embodiments include coils with a 180 degree arc. A method of operating the position sensor includes rotating a target formed of a conducting material in a shape of a spiral of Archimedes over a coil structure and providing a linearized and calibrated response indicating the angular position of the target relative to the coil structure.

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 switch is disclosed. The switch includes a body; and an actuator configured to provide a magnetic force to the body and induce an electrical switching of the body, wherein the body includes a housing with a first surface; and a plurality of hall sensors sequentially disposed adjacent to the first surface, wherein the actuator includes a case with a second surface; and a first magnetic body and a second magnetic body sequentially disposed adjacent to the second surface, wherein the first magnetic body includes a first polarity; and a second polarity opposite to the first magnetic body, wherein the second magnetic body includes a third polarity; and a fourth polarity opposite to the third magnetic body, wherein the first polarity, the second polarity, the third polarity, and the fourth polarity are sequentially disposed along the second surface.

Abstract: System and method for locating a fault on a line comprises a sampler that samples a pulse from the fault, the sampling being carried out at a predetermined sampling rate. A differentiator produces a differential or derivative of the pulse, and an analyzer obtains timing information from the derivative, from which it is possible to locate the fault knowing the total length of the line and the wave propagation rate.

Abstract: A contactless readable programmable transponder to monitor chip join and method of use are disclosed. The method includes reading a frequency of an oscillator associated with a chip module. The method further includes correlating the frequency with a bond quality of the chip module.

Abstract: An electrical-test apparatus is provided, which includes a plurality of tester interconnect structures cantilevered from a first side of a substrate. A base may be coupled to a second side of the substrate via one or more interconnect layers. The tester interconnect structures may contact corresponding interconnect structures of a device under test (DUT). In an example, the substrate is laterally movable relative to the DUT along a plane of the substrate, upon contact between the tester interconnect structures and the interconnect structures of the DUT.

Abstract: An apparatus for burning in electronic components, which includes a plurality of assemblies placed in a holder, each assembly comprising a printed circuit board on which are placed sockets intended to receive electronic components and a burn-in driver. The holder is at room temperature, and each assembly comprises a single chamber that is regulated to a temperature T°>80° C., in which chamber at least four sockets are placed. The printed circuit board forming one wall of the chamber, the burn-in driver is soldered directly to the printed circuit board on the side exterior to the chamber, with a single burn-in driver per chamber, and the assembly furthermore comprises means for dissipating only the thermal energy of operation of the burn-in driver.

Abstract: Methods, systems, and devices for testing a die using a segmented digital die ring are described. A segmented digital die ring may include multiple signal line segments, each coupled with a test segment circuit, and a control circuit. A test segment circuit may generate a digital feedback signal that indicates a condition of a respective signal line segment. The control circuit may generate a single output signal, indicative of the condition of the signal line segments. By utilizing digital testing circuitry and a single digital output signal, a layout area of the segmented digital die ring be minimized and a power consumption associated with the testing operation may be reduced.

Abstract: An electrostatic discharge measuring device includes an integrated circuit including a collector, a discharge pad and an ESD detector circuit coupled to the collector and discharge pad. The ESD detector circuit includes a device that detects occurrence and magnitude of an electrostatic discharge between the collector and the discharge pad. In one embodiment, the device is a metal-oxide-semiconductor capacitor. In another embodiment, the device is a thin film storage bitcell. In one embodiment, the electrostatic discharge measuring device is contained in a test microelectronic package. A method includes running the test microelectronic package through a manufacturing process to determine location during manufacturing at which an electrostatic discharge occurs when an externally-similar production microelectronic packages is run through the same manufacturing process.

Abstract: A fixed latency configurable tap or fixed-tap digital filter may filter a signal in a fixed amount of time, regardless of the number of taps. The filter may include one or more of a clock, a plurality of registers in a shift register, an adder, an accumulator, and/or a scaler. In at least one embodiment, a running average may be maintained as samples are received such that the latency remains fixed with a constant number of clock cycles.

Abstract: The present disclosure proposes a detecting circuit and a display device. The detecting circuit includes a cell test circuit controlling signal line, a cell test circuit data signal line, an array test driving unit and an FET. The cell test circuit controlling signal line is connected to a gate of the FET. The cell test circuit controlling signal line is connected to a drain of the FET. A common signal is further connected to a source of the FET. By using the detecting circuit, a panel with a narrow bezel and low production cost can be realized.

Abstract: A medical system tracks the position of a medical instrument within a body of a patient. The medical instrument includes an electromagnet structure having an inductor coil wound around a core. A control circuit applies a low frequency excitation signal across the inductor coil. The inductor coil and the core generate a magnetic field. A plurality of sensors sense parameters of the generated magnetic field and produce sensor signals. The control circuit calculates the position of the medical instrument based on the produced sensor signals.

Abstract: The present application discloses a magnetic sensor, fabrication process of perforated integrated circuit module and the magnetic sensor; the magnetic sensor comprises: a head cover, a shaft sleeve, a hollow rotating shaft, a ring alnico, a magnetic sensitive chip matrix, a printed circuit board, a device for output signal and a bottom case; all of them have a through hole except said device for output signal, said magnetic sensitive chip matrix is soldered on said printed circuit board, said device for output signal connects to said printed circuit board electrically, said printed circuit board is mounted below said hollow rotating shaft, and said head cover is mounted on said bottom case to form a cavity, said device for output signal passes out of said cavity. This magnetic sensor can be penetrated by an external shaft and has a thin thickness.

Abstract: A reliability determination method, which is configured to test a batch of semiconductor devices, includes: obtaining a Welbull distribution of lifetime of the batch of semiconductor devices; dividing the Welbull distribution into at least a first section and a second section, wherein the first section and the second section meet a confidence interval; generating a first trend line of the first section and a second trend line of the second section according to the first confidence level, in which the first trend line has a first slope and the second trend line has a second slope; determining the first slope exceeds a second slope; and determining a predicted reliability of the batch of the semiconductor device under a target quality level according to the first section.

Abstract: A method of monitoring state of health for an energy generation system includes receiving a measurement of a parameter of an electrical component in the PV energy generation system at an instance in time, referencing a look-up table containing several values of the parameter representing an expected degradation trend across a progression of time for the electrical component, comparing the measurement to an expected value of the expected degradation trend for a period of time corresponding to the instance in time, and initiating a preventative measure based upon the comparison between the measurement and the expected value of the expected degradation trend.

Abstract: A magnetic sensor system may include a first magnetic sensor and a second magnetic sensor. The first magnetic sensor may include a first triplet of sensor elements for measuring a magnetic field. The first triplet of sensor elements may be aligned linearly along a direction of movement. A first pair of differential signals, output by the first magnetic sensor, may indicate a position of the magnetic sensor system, along the direction of movement, relative to a magnetic pole pair. The second magnetic sensor may include a second triplet of sensor elements for measuring the magnetic field. The second triplet of sensor elements may be aligned linearly along the direction of movement. The second magnetic sensor may be positioned relative to the first magnetic sensor such that a second pair of differential signals, output by the second magnetic sensor, indicates a position of the magnetic sensor system across multiple pole pairs.

Abstract: Electrical energy storage system (1), comprising at least two strings (STR1, STR2, STR3) interconnected in parallel connection, wherein the strings each have at least two electrical energy storage units (15) interconnected in series connection, characterized in that at least one first electrically conductive cross-connection (11) between electrical energy storage units (15) at an identical first electrical potential in the strings (STR1, STR2, STR3) interconnected in parallel connection is electrically conductively connected via at least one diode (12) to a means for detecting an electric current (13) and a controllable electrical energy source (14), wherein the diode (12) is not incorporated into the first electrically conductive cross-connection (11).

Abstract: A duty cycle is used in conjunction with a powered oscillator to electronically reduce the current draw by reducing the average current and thus reducing the sensor radiated emissions without altering an inductive position sensor. The duty cycle and the switching of the oscillation drive enable an on and an off cycling of the inductive position sensor such that an oversampling may occur without altering the hardware, but providing the improvements. As such, the inductive position sensor may only have an oscillation signal long enough to capture a stable sample and remain off for the duration of the sampling period. As such, a reduction in radiated emissions is achieved.