Abstract: An FET-characteristic measuring system applies a pulse output from a pulse generator to the gate of an FET in order to measure drain current flowing through the FET. The pulse has a voltage based on a set voltage. The measuring system includes a divider for dividing the pulse output from the pulse generator into a first pulse applied to the gate of the FET and a second pulse for voltage measurement; a voltage measuring device for measuring a voltage of the second pulse; and a set-voltage adjusting device for determining, based on the voltage of the second pulse, a target set voltage for the pulse generator to apply a pulse having a desired gate application voltage to the FET and for adjusting the set voltage to the target set voltage so that a voltage of the first pulse is equal to the desired gate application voltage.

Abstract: An apparatus and method for stabilizing a fuser in an imaging apparatus. The apparatus includes a hub having a body. The body comprises an outside diameter configured to be at least partially disposed inside an end of a fuser core. The apparatus also includes an elastomeric collar having an inside diameter, wherein the inside diameter is at least partially disposed over the outside diameter of the hub.

Abstract: Provided is an apparatus for concurrently detecting a defect occurring in a heat exchanger tube and a geometric transition of the heat exchanger tube. The apparatus for detecting the state of a heat exchanger tube, including: the first detection unit detecting a defect of the heat exchanger tube; and the second detection unit detecting a geometric transition of the heat exchanger tube, in which the first detection unit and the second detection unit are disposed at the same circumferential position of a cylindrical body separately, installed to have a certain distance in the lengthwise direction of the cylindrical body, and inserted inside the heat exchanger tube. According to the present invention, not only a defect but also the type of geometric transition, which may accelerate the initiation and growth of a defect, is identified and the size of the geometric transition is concurrently measured, thereby improving the reliability in early detection of a defect.

Abstract: A digital sensing circuit capable of sensing bit information stored in a bit cell of an organic memory is provided. The digital sensing circuit includes a current-to-voltage converter, a reset block circuit, and a sensing block circuit. The current-to-voltage converter converts a conduction current into a voltage signal. The sensing block circuit buffers and outputs the bit information according to the voltage signal. Therefore, the challenge of design and layout of the present invention is very low so that the yield rate will be improved. Hence, a practical memory device suitable for mass-production is achieved.

Abstract: This disclosure describes a Soil Penetrating Electrode with Conical Taper for use with instrumentation for measurement of the electrical properties of soil in situ. The Electrode shape and configuration solves problems of stable and reliable contact with the soil, repeatable contact area, and ease of use by the operator.

Abstract: Embodiments of the present invention include a method for quantitatively detecting embedded particles of a disk spacer ring comprising. The method includes dissolving a layer of a disk spacer ring into a liquid solution, the disk spacer ring layer comprising embedded particles. The method further includes filtering the solution to capture the embedded particles. The method further includes counting the particles.

Abstract: In a surface potential distribution measurement method and device, a sample having a surface with a surface potential distribution is scanned using a charged particle beam in a two-dimensional manner. A detection signal caused by the two-dimensional scanning is obtained to measure the surface potential distribution. Charged particles, other than charged particles of the charged particle beam incident to the sample surface by the two-dimensional scanning, with which components of an incidence velocity vector of the charged particles in a direction perpendicular to the sample surface are reversed, are detected so that a detection signal indicating an intensity according to the detected charged particles is obtained in correspondence with a position on the sample surface.

Abstract: Low power corrosion measurement devices are described with programmable configuration for implementing one or more advanced corrosion measurement types to provide conductivity, general corrosion, and/or localized corrosion values in a field transmitter for online corrosion monitoring or off-line corrosion data logging.

Abstract: A method for testing a precursor of a secondary cell with high reliability and high efficiency to judge the precursor to be acceptable or defective. The current flowing when a test voltage is applied between a pair of electrodes is measured before an electrolyte is placed between the electrodes. If a current the current value of which exceeds a predetermined reference current value (13) is detected during the time from the start of application of a voltage to a normal secondary cell precursor until the current becomes constant, the precursor is determined to be defective.

Abstract: A radiometer system includes a housing and an RF board contained within the housing. Balanced radiometer channels receive an unknown signal and known reference. Each balanced radiometer channel includes at least one quadrature hybrid and amplifier circuit to provide distributed gain and an amplified output signal. A detection circuit receives and detects the amplified output signal forming a detected signal. A controller board is contained within the housing and has an integration circuit and microcontroller that receives the detected signal and performs video signal digitization and conditioning and real-time corrections on any radiometer channels to account for changes in temperature or gain.

Abstract: Apparatus and systems, as well as methods and articles, may operate to transmit an initial pulse to a directional coupler, where the initial pulse has an initial amplitude and a timed overshoot of a selected duration. Further activities may include stepping down the initial amplitude to an amplitude approximately equal to the initial amplitude times a mode reflection coefficient squared. A tuning stub may be coupled to a charge line to transmit the initial pulse, and decoupled from the charge line to refrain from receiving an echo pulse associated with the initial pulse.

Abstract: Disclosed is a method and apparatus for an electrochemical impedance measurement, and in particular circuitry and components employed for such measurements. The system employs an injected broadband AC signal to produce an associated response signal. The subsequent analysis of injected and response signals, considering both magnitude and phase, gives broadband impedance and therefore fluid characteristic information. An embodiment described is relative to a smart oil sensor system suitable for sensing, analyzing and reporting the condition of oil or other liquids used in equipment and machinery.

Abstract: This invention relates to a sensor module for measuring structures in a surface, especially in a finger surface being moved over the sensor module, that includes a number of sensor elements, and an outer electrode located aside the sensor elements, the sensor elements being coupled to at least one AC drive circuit providing a varying current or voltage, thus coupling a signal through the sensor elements to the outer electrode. The sensor elements are also coupled to an electronic circuit positioned on a substrate, the substrate includes conductor leads coupling the sensor elements to the electronic circuit, and the electronic circuit being adapted to measure the magnitude of the capacitance or AC impedance.

Abstract: An impedance conversion circuit including: a first voltage-to-current converter and a second voltage-to-current converter supplied with differential input signal voltages; an inverting amplifier; and a third voltage-to-current converter for feedback; wherein a first resistance and a second resistance are connected in series with each other between an input terminal and an output terminal of the inverting amplifier, an output terminal of the first voltage-to-current converter is connected to the input terminal of the inverting amplifier, an output terminal of the second voltage-to-current converter is connected to a connection node of the first resistance and the second resistance, the output terminal of the inverting amplifier is connected to an input terminal of the third voltage-to-current converter, an output terminal of the third voltage-to-current converter is connected to an input terminal of the first voltage-to-current converter, and an impedance is connected between the connection node and a ground.

Abstract: The hand-held portable tester provides an improved system and method for testing storage batteries, vehicle starting systems and vehicle charging systems. The system and method more accurately calculates tests results for multiple types of storage batteries. The system and method provides a convenient charging system test that is completed at a single engine speed. In addition, the hand-held portable tester provides a coded or encrypted output for battery tests that can be identified with the battery to ensure compliance with battery return policies and detour fraud. A system and method of decoding or decrypting the output is also provided.

Abstract: A device measures an impedance of an electronic component with using an impedance measuring apparatus. The impedance measuring device includes first and second probes to be connected to measuring terminals of the impedance measuring apparatus, an anisotropic conductive sheet, and a pressing member for pressing the electronic component toward the first and second probes. The first probe has a first contact surface. The second probe has a second contact surface flush with the first contact surface. The anisotropic conductive sheet has a first surface contacting the first and second contact surface, and a second surface opposite to the first surface. The pressing member causes first and second external terminals of the electronic component to contact the anisotropic conductive sheet. The conductive sheet includes an insulating elastic sheet and plural conductive wires penetrating the elastic sheet to expose from the first surface and the second surface.

Abstract: A one terminal capacitor interface circuit for sensing the capacitance of a capacitor includes a differential integrating amplifier having an input common mode voltage and two summing nodes whose voltage is substantially equal to the input common mode voltage, a switching circuit for charging the capacitor to a first voltage level in a first phase, connecting, in a second phase, the capacitor to one of the summing nodes of the differential amplifier to provide a first output change substantially representative of the difference between the first voltage level and the input common mode voltage, and also representative of the capacitor; charging the capacitor to a second voltage level in a third phase, and connecting, in a fourth phase, the capacitor to the other summing node of the differential amplifier to provide a second output change substantially representative of the difference between the second voltage level and the input common mode voltage, and also representative of the capacitor; the combined first

Abstract: A cable detection apparatus is disclosed having a filter, the filter transmitting components of a signal detected substantially at certain harmonics of a first frequency. The filter may also attenuate the signal at certain even harmonics thereof. A method of detecting and/or locating cables in the same manner is also disclosed.

Abstract: A circuit and method for judging a latent short-circuit defect, also known as a short-circuit defect with time passing, in the case of a high voltage system. A detection-dedicated wiring for detecting a short-circuit defect is provided between a first high voltage system wiring and a second high voltage wiring. A power supply and an ammeter is connected in series and one end of it is connected to the high voltage system wiring and the other end of it is connected to the detection-dedicated wiring. If a current value us higher than a predetermined value when the power supply is turned on, one can judge that the circuit has a high possibility of the latent short-circuit defect.

Abstract: Novel system and methodology for distinguishing a Network Interface Card (NIC) from a short circuit condition in a Power over Ethernet (PoE) system. A system for providing power to a powered device (PD) includes a PD probing circuit that generates a detection signal supplied to a device being probed and determines a response signal produced in response to the detection signal, and a control circuit that determines a detection value based on the response signal. The control circuit detects a short circuit if the detection value is in a first predetermined range, and detects a NIC if the detection value is in a second predetermined range outside of the first predetermined range.