Abstract: The present invention relates to a system for analysis of partial discharge defects of a gas insulated switchgear capable of allowing a user to precisely analyze a defect of a gas insulated switchgear due to a partial discharge, by providing both partial discharge signal information on a partial discharge signal sensed by a detecting sensor, and detection signal information on a detection signal sensed by one or more neighboring sensors adjacent to the detecting sensor, to a monitor.

Abstract: A method of measuring an output resistance of a DUT includes determining an initial output resistance of an n-type transistor, thereby determining an initial gate voltage for the n-type transistor, and determining an initial output resistance of a p-type transistor, thereby determining an initial gate voltage for the n-type transistor. A resistance for a cascode arrangement of the n-type transistor and the p-type transistor is determined, and the output resistance of the DUT using the cascode arrangement is measured by biasing the n-type transistor with the initial gate voltage for the n-type transistor and biasing the p-type transistor with the initial gate voltage for the p-type transistor.

Abstract: The invention relates to the technical field of oilfield exploration and development, and particularly relates to a method for characterizing the rock physical characteristics of deeply buried carbonate rocks, comprising the following steps: determining a rock type of a rock thin section by identifying the surface structure characteristics of the rock thin section corresponding to a core plunger sample; performing a normal pressure nuclear magnetic resonance test and rock physical characteristic tests on the core plunger sample; establishing an identification plate, a first relation, a second relation and a third relation; characterizing the rock physical characteristics of a target rock sample under normal pressure and its buried depth according to the normal pressure nuclear magnetic resonance test result and the overburden pressure nuclear magnetic resonance test result of the target rock sample respectively.

Abstract: An embodiment of a capacitance sensing circuit includes a set of bridge switches coupled with a reference cell and a sensor cell. The set of bridge switches is configured to, over a first phase, increase a voltage difference between a first modulation capacitor and a second modulation capacitor, and over a second phase, decrease the voltage difference at a rate corresponding to a difference between a capacitance of the sensor cell and a capacitance of the reference cell. The capacitance sensing circuit also includes a comparator configured to generate an output based on comparing a first voltage of the first modulation capacitor with a second voltage of the second modulation capacitor, and initiate a transition between the first phase and the second phase in response to the comparing.

Abstract: Methods of extracting complex impedance from selected subsurface volumes of a material under test (MUT) using various embodiments of electrode sensor pairs are provided. The electrode pairs can penetrate into a subsurface of the MUT, and operate below the surface of the MUT. Configurations of electrode pair sensors provide measured data of complex impedance of selected subsurface volumes of the MUT using electromagnetic spectrographic signals over a frequency range. The complex impedance characteristics of the subsurface volumes may be used to identify variations in the properties of the MUT, or be correlated to physical properties of the MUT.

Abstract: An A/D conversion device acquires an inter-terminal signal of one or more battery cells when detecting a voltage across the battery cells. The A/D conversion device acquires a failure diagnosis signal during a failure diagnosis. A control unit causes the A/D conversion device to perform A/D conversion processing in a ?? mode or a hybrid mode, in which acquiring remaining bits of higher bits after subjecting the higher bits to a ?? type A/D conversion processing, when detecting the inter-terminal signal of the battery cells. The control unit causes the A/D conversion device to perform the A/D conversion processing in a cyclic mode or a hybrid mode, when detecting the failure diagnosis signal during the failure diagnosis.

Abstract: An imaging system comprises determination of a charge block for each building block of an MRI pulse sequence and for each readout event of the MRI pulse sequence, determination, for each charge block, of a charge per request associated with the charge block, determination, for each charge block, of an associated charge reduction based on a charge per request associated with the charge block and on a charge available to the charge block after execution of a previous charge block of the MRI pulse sequence, determination, for each charge block associated with a non-zero charge reduction, of a flip angle of a corresponding building block of the MRI pulse sequence based on a charge per request and a charge reduction associated with the charge block, and control of a radio frequency system to deliver the MRI pulse sequence based on the determined flip angles of each building block of the MRI pulse sequence corresponding to a charge block associated with a non-zero charge reduction.

Abstract: A system activates a switch between a disengaged state and an engaged state, receives, via the second optical excitation source, a light signal includes a high intensity signal provided by the second optical excitation source, and causes at least one of the photocomponent or the optical detection circuit to operate in a non-saturated state responsive to the activation of the switch.

Abstract: Disclosed is a magnetic sensor for measuring flux density. The sensor comprises at least one tunnelling magnetoresistor, supporting circuitry and an output for outputting a signal from the tunnelling magnetoresistor. In another aspect, there is also provided a sensor probe comprising at least one magnetic sensor. A magnetic probe system is also described, comprising the probe sensor and processing circuitry. Methods of processing the output signal from the magnetic sensor are also described. In one application, the system and method allow for detection of tissue such as lymph nodes that have taken up small quantities of magnetic particles upon injection of a magnetic tracer containing the magnetic particles into a patient, and can be used to identify such tissue that could be affected by certain forms of cancer.

Abstract: A device for contactless actuation of an adjustable vehicle part. The device has a capacitive proximity sensor having a first elongated sensor electrode and a second elongated sensor electrode, as well as a carrier component for fastening the proximity sensor. The carrier component has a curved mounting surface on which the sensor electrodes are placed in such a way that the horizontal distance between the two sensor electrodes over the length of the sensor electrodes is exactly or at least approximately constant, the vertical distance between the sensor electrodes varying over the length of the sensor electrodes.

Abstract: Systems and methods are provided for investigating a downhole formation using a nuclear magnetic resonance (NMR) tool having two or more radio frequency receiving coils. While the tool is moving through the borehole, the formation is magnetized and resulting signals are obtained. In accordance with the present approach, the acquired signals can be resolved azimuthally and can be reconstructed to obtain an indication of a parameter of the formation at multiple locations along the length of the borehole.

Abstract: A nuclear magnetic resonance (NMR) apparatus includes at least one solenoid configured to induce a radio frequency magnetic field in a sample. The sample is located inside the solenoid. At least one cylindrical magnet is arranged to induce a static magnetic field in the sample, wherein the magnet is located inside the sample.

Abstract: The present disclosure generally provides for a method of managing semiconductor manufacturing defects. The method includes: determining a cumulative aging parameter for each of a plurality of first IC products produced with a particular manufacturing line, the cumulative aging parameter being dependent on a product operating condition; calculating an observed defect rate for the plurality of first IC products based on a difference between a predicted value of the aging parameter and the cumulative aging parameter for each of the plurality of first IC products; and adjusting a manufacturing reliability model for the particular manufacturing line in response to the observed defect rate being different from a predicted defect rate for the plurality of first IC products.

Abstract: Various downhole logging tools and methods of using and making the same are disclosed. In one aspect, a downhole logging tool for inspecting a well casing is provided that includes a housing adapted to be supported in the well casing by a support cable. A transmitter is positioned in the housing and operable to generate a magnetic field. Plural receivers are positioned in the housing in circumferentially-spaced apart relation and are operable to sense the magnetic field with azimuthal sensitivity. Electronic circuitry is operatively coupled to the receivers to determine a parameter of the sensed magnetic field and determine a characteristic of the well casing based on the parameter.

Abstract: A latch assembly comprising: a latch operative to adopt a latched condition and an unlatched condition; a magnet imparting a magnetic field; a sensor adapted to sense the magnetic field; the latch, magnet and sensor being configured such that a change in the condition of the latch effects a variance in the magnetic field sensed by the sensor such that the sensor is able to distinguish between the latched condition and the unlatched condition.

Abstract: Nuclear magnetic resonance apparatuses and methods for estimating properties of an earth formation are provided. An apparatus includes a carrier configured to be deployed in a borehole, at least one transmitting assembly configured to generate an oscillating magnetic field in a volume of interest within the earth formation, at least one receiving assembly configured to detect a nuclear magnetic resonance (NMR) signal originating in the volume of interest; and a magnet assembly configured to generate a static magnetic field in the formation from a primary side of the magnet assembly. The magnet assembly includes an array of longitudinally elongated magnets having a rotating pattern of magnetic orientations, the array configured to generate the static magnetic field in the volume of interest, and the static magnetic field strength is higher at the primary side than the field strength at a side of the magnet assembly that is opposite the primary side.

Abstract: A handler includes a loading unit transporting substrates and sockets coupled to the substrates, a test unit including a printed circuit board, the sockets being mounted on the printed circuit board, and latches fixing the sockets to the printed circuit board, and an unloading unit unloading the substrates and the sockets from the test unit.

Abstract: A non contact sensor for use in magnetostrictive testing of a solid ferrous structure. In its simplest form, the sensor has a set of permanent magnets arranged in a row with their poles in the same direction, an electrical coil wrapped around the set of magnets, wrapped in direction parallel to the common poles of the magnets, thereby forming a top portion above the set of magnets and a bottom portion below the set of magnets, and a metal shield interposed between the top portion of the coil and the set of magnets. The sensor is operable such that a time varying current in the coil causes guided waves to travel to the structure and to be reflected from anomalies in the structure even when there is no ferromagnetic coupling material between the sensor and the structure.

Abstract: In a magnetic resonance (MR) apparatus and method to evaluate the consistency of a signal model used to generate a quantitative parameter map, the residual of the quantitative parameter map is calculated and a residual map is generated. The residual map is displayed together with the quantitative parameter map, with the residual map serving as an indicator of the quality of fit of the signal model.

Abstract: A magnetic resonance imaging apparatus includes a static magnetic field magnet and a gradient coil. The static magnetic field magnet generates a static magnetic field. The gradient coil is provided on an inside of the static magnetic field magnet and includes an X coil, a Y coil and a Z coil. The X coil generates a gradient magnetic field along a horizontal axis of a substantially circular cylinder, the horizontal axis being perpendicular to a long axis. The Y coil generates a gradient magnetic field along a vertical axis of the substantially circular cylinder. The Z coil generates a gradient magnetic field along the long axis of the substantially circular cylinder. In the gradient coil, coils are laminated in such a manner that the X coil is positioned more distant from a magnetic field center than the Y coil is.