Abstract: A fluid sensor and method for determining at least one parameter of a fluid of a wellbore is provided. The fluid sensor has a base positionable on a downhole tool and a pair of electrodes. The base is provided with insulation. The pair of electrodes is operatively positioned in the insulation. The pair of electrodes has a space therebetween for passage of the wellbore fluid therethrough. A first of the pair of electrodes is interlaced with a second of the pair of electrodes such that at least a portion of the second of the pair of electrodes is surrounded by the first of the pair of electrodes. A voltage applied across the pair of electrodes generates a current therebetween whereby at least one parameter of the wellbore fluid may be determined. The fluid sensor is deployable into the wellbore via the downhole tool.

Abstract: A magnetic field sensor for measuring a magnetic field at a sensor location has a printed circuit board, including electrically insulating material; a magnetic field sensor element situated on the printed circuit board and connected via electrical contacts to first printed conductors provided on the printed circuit board; and at least one second printed conductor for generating a test magnetic field, the second printed conductor being provided on the printed circuit board and generating a predetermined test magnetic field when a calibration current is applied at the sensor location.

Abstract: A flexible magnetic coil for determining ion migration rates inside a vacuum device can include a plurality of insulated copper wires held together as a bundle. A positive pole can be connected to a first end of the bundle for receiving a positive DC voltage. A negative pole can be connected to a second end of the bundle for completing a circuit with the positive pole. A DC voltage ranging from ten volts to four thousand volts from a power supply can be connected to the positive pole, the negative pole, or combinations thereof. The bundle can be a loop and can form a circuit when the DC voltage is applied to the loop. The bundle can create a flexible electromagnetic field of at least one Gauss around the vacuum device using a calculation of a number of turns of insulated copper wire multiplied by applied DC current.

Abstract: Presented herein is a magnetic field sensor architecture that uses outputs of a peak detector and threshold detector operating in parallel to detect magnetic anomalies that may be associated with the target being sensed, e.g., a rotational ferromagnetic object such as a toothed gear, and use such detection to prevent sensor malfunction. The sensor includes an edge detection circuit and an error detection circuit. In one embodiment, the edge detection circuit includes circuits to detect edges (or transitions) of the threshold and peak detector output signals and the error detection circuit includes circuits, responsive to the edge detection circuit, to indicate an error when a “missed transition” occurs or a peak-to-peak value of an input signal as detected by the peak detector for a current cycle differs from an expected peak-to-peak value by a predetermined amount.

Abstract: Disclosed is a touch panel. The touch panel includes an insulating layer, first sensing electrode patterns provided on one surface of the insulating layer, and second sensing electrode patterns provided on another surface opposite to the one surface of the insulating layer such that the second sensing electrode patterns are insulated from the first sensing electrode patterns. A bridge electrode is prevented from being viewed by the eyes of a user by removing the bridge electrode from the touch panel. The touch panel is constructed in a simpler structure, so that the production cost of the touch panel is reduced.

Abstract: An external operation detection structure body including: a sensor casing having an aperture window; an external operation detection sensor arranged at a formation zone of the aperture window; a sheet-like interface member that covers a front face of the detection sensor and closes the aperture window; an outer peripheral wall protruding out from a rear face of an outer periphery of the interface member and penetrating into the aperture window so as to be arranged between the detection sensor and the sensor casing; and front and rear face seal protrusions extending respectively from front and rear edges of the outer peripheral wall toward an outer peripheral side so as to be superposed respectively with front and rear faces of a peripheral edge of the aperture window of the sensor casing.

Abstract: A method measures a capacitance. According to the method, a first detection measurement for the capacitance which is to be measured is detected by a first measurement method during a first measurement phase. In this case, a second measurement phase is started when the first detection measurement satisfies a transition criterion. A second detection measurement for the capacitance which is to be measured is detected during the second measurement phase by a second measurement method which differs from the first measurement method. The second measurement method has higher measurement accuracy than the first measurement method but also greater energy expenditure.

Abstract: A dosimeter includes a platinum-ruthenium (PtRu) nanoparticle-decorated, -coated, or -deposited carbon nanostructure element. The PtRu nanoparticle-decorated carbon nanostructure element is foulably sensitive to a gas.

Abstract: The invention relates to a printed circuit board (10), with conductor tracks (11, 11a), which are arranged at least on a surface of the printed circuit board (10) and serve for the electrical contacting of components, and with at least one testing zone (12), which is formed by a portion of the conductor track (11) and serves for the electrical contacting of a testing element (20), in particular a testing head, wherein the surface of the printed circuit board (10) is provided with a protective layer (14), which is formed in the testing zone (12) such that it is interrupted in the region of a contact zone (15), and wherein the contact zone (15) is provided with a layer (18), which establishes an electrical contacting of the testing element (20) with the layer (18). According to the invention, it is provided that the contact zone (15) is arranged at least partially at a lateral distance from the edges of the conductor track (11) in the region of the testing zone (12).

Abstract: A cassette detecting device and a medium processing device using the same are provided. The cassette detecting device comprises: a main board comprising a first input unit and detecting and outputting at least one of whether at least one cassette connected to the first input unit is mounted and its mounting position; and a plurality of cassettes storing a medium, comprising a second input unit connected to the main board, and determining the mounting position of a corresponding cassette according to a signal from the second input unit, each of the plurality of cassettes and the main board comprises a comparing unit for determining the mounting position of a cassette.

Abstract: A magnetic field measurement apparatus includes an irradiation portion, a gas cell, a measurement unit (polarization separation unit, light receiving portion, signal processing circuit), and a magnetic shield. The magnetic shield is formed in a elongated hollow shape having openings at both sides thereof. The gas cell, in which gaseous atoms are sealed, is disposed in a hollow area of the magnetic shield. The irradiation portion irradiates irradiation light including linearly polarized light adjusted so that the vibration direction of an electric field coincides with the axis direction of the magnetic shield onto the gaseous atoms sealed in the gas cell along a direction perpendicular to the axis of the magnetic shield. The measurement unit measures a rotational angle of a polarization plane of the irradiation light that has been irradiated by the irradiation portion and passed through the gaseous atoms.

Abstract: A method for estimating fracture aperture from multi-axial electromagnetic induction measurements made in a wellbore includes determining a fracture indicator and a fracture orientation indicator. The value of the fracture indicator is determined from components of the measurements made transverse to the tool axis. A relationship between the value of the fracture indicator and the fracture aperture for the subsurface formation is determined by estimating the fracture indicator using a plurality of values of fracture aperture and a resistivity of drilling fluid in the wellbore over a background formation with estimated horizontal resistivity and vertical resistivity. The fracture aperture is determined using the determined fracture indicator and the determined relationship.

Abstract: The invention relates to a method and an apparatus (100) for the enrichment of magnetic particles (1) in a sample fluid. The sample fluid is provided in a sample cartridge (2) between a first pole (111) and a second pole (112) of an actuator magnet (110). A minimal magnetic flux as well as a minimal magnetic gradient are then established inside the sample fluid, wherein their values depend on the particular magnetic particles (1) and the sample fluid under consideration. In a preferred embodiment, the first pole (111) has a single tip (T).

Abstract: The apparatus for detecting a foreign object mounted in the near range of an input means used for identification and/or authentication includes at least a coupler. The coupler is arranged to supply an oscillating signal to two input terminals of an antenna for generating a standing wave, to supply the oscillating signal with a predetermined level to a detection device, and to couple out, for the detection device, a reflection signal received by the antenna. Furthermore, the coupler is arranged to detect a phase difference between the supplied oscillating signal with the predetermined level and the reflection signal that is coupled out, in order to detect the foreign object.

Abstract: Various embodiments include apparatus and methods of operation with respect to well logging. Apparatus and methods include a tool having an arrangement of transmitters and receivers to capture a signal from a first region relative to the tool such that signal contributions from a second region relative to the tool are cancelable, based on placement of the transmitters and receivers with respect to each other. Additional apparatus, systems, and methods are disclosed.

Abstract: A testing system for testing semiconductor package stacking chips is disclosed. The system includes a testing socket, a testing arm, and a testing mechanism. The testing mechanism includes a probe testing device. The probe testing device has a testing chip inside and a plurality of testing probes electrically connected to the testing chip. The plurality of testing probes extends toward the testing socket for contacting a chip-under-test loaded on the testing socket. When the testing mechanism moves to an upper position between the testing socket and the testing arm, the testing arm moves downward in the vertical direction and presses down the testing mechanism thereby coercing the plurality of testing probes in the testing mechanism to closely abut against the chip-under-test, so that the testing chip inside the testing mechanism can electrically connect to the chip-under-test for forming a test loop.

Abstract: An inspecting device serves to inspect a solar cell. The inspecting device includes an irradiation part for irradiating with pulsed light and a detection part having a detector for detecting an electromagnetic wave pulse radiated from the solar cell depending on the irradiation with the pulsed light. The detector detects an electric field intensity of the electromagnetic wave pulse depending on irradiation with probe light emitted from a light source (a femtosecond laser) of the pulsed light. Moreover, the inspecting device includes a delay part for delaying a timing for detecting the electromagnetic wave pulse in the detector. Furthermore, the inspecting device includes an electromagnetic wave pulse analysis part for detecting a negative peak of the electric field intensity in a temporal waveform of the electromagnetic wave pulse.

Abstract: A miniature oxygen sensor makes use of paramagnetic properties of oxygen gas to provide a fast response time, low power consumption, improved accuracy and sensitivity, and superior durability. The miniature oxygen sensor disclosed maintains a sample of ambient air within a micro-channel formed in a semiconductor substrate. O2 molecules segregate in response to an applied magnetic field, thereby establishing a measureable Hall voltage. Oxygen present in the sample of ambient air can be deduced from a change in Hall voltage with variation in the applied magnetic field. The magnetic field can be applied either by an external magnet or by a thin film magnet integrated into a gas sensing cavity within the micro-channel. A differential sensor further includes a reference element containing an unmagnetized control sample. The miniature oxygen sensor is suitable for use as a real-time air quality monitor in consumer products such as smart phones.

Abstract: To accurately measure a frequency characteristic of a waveform generating apparatus, provided is a measurement apparatus that measures a frequency characteristic of a waveform generating apparatus generating a signal having a waveform corresponding to waveform data, comprising a control section that causes a plurality of sine wave signals having different frequencies to be sequentially output from the waveform generating apparatus; a measuring section that measures each of the sine wave signals output from the waveform generating apparatus; and a calculating section that calculates a frequency characteristic of the waveform generating apparatus based on the measurement results of the measuring section. The control section causes trigger signals to be output from the waveform generating apparatus and causes the sine wave signals to be output in synchronization with the trigger signals, and the measuring section measures a phase of each sine wave signal with the corresponding trigger signal as a reference.

Abstract: A testing apparatus for testing a number of different characteristics of a circuit board includes at least two probes, at least one measuring meter, and a storage device. After a circuit schematic diagram of the circuit board and a circuit wiring diagram of the circuit board have been compared, the location of each electric contact is determined. The probes necessary for testing particular characteristics are connected in turn to the measuring meter. The circuit board is moved to align the electric contacts with the probes, and bring the probes into electrical contact with the electric contacts for testing.