Abstract: A measuring device having a configurable measuring and operating electronics for delivering a measurement signal, includes a measurement transmitter with an electrical current control circuit for outputting a controlled electrical current, wherein in a first manner of operation an electrical current is set in a first range, and in a second manner of operation an electrical current is set in a second range having a greater interval than the first range; the measuring device further having a microcontroller circuit is connected with the electrical current control circuit for delivering a digital signal for operating the electrical current control circuit, wherein the digital signal has a LOW state and a HIGH state and wherein by operating the electrical current control circuit an output current can be set with an electrical current level in a first interval for the LOW state and in a second interval for the HIGH state.

Abstract: An assembly providing a bearing, a lubricant and a contamination sensor for determining a level of contamination in the lubricant. The sensor includes an EM wave generator for generating an EM signal, and an EM sensing element arranged in contact with the lubricant. The EM sensing element receives the generated EM signal and transmits an output signal whose properties are responsive to real and imaginary parts of a complex relative permittivity of the lubricant. The output signal is received by an EM measuring device that measures first and second parameters of the output signal, which are respectively representative of the real and imaginary parts of the complex relative permittivity. The EM measuring device determines a level of water contamination in the lubricant, based on the measured first parameter alone and determines a level of metal particle contamination in the grease, based on the measured first and second parameters.

Abstract: An integrated ion-sensitive probe is provided. In an example, an ion-sensitive probe can include a semiconductor substrate and a first passive electrode attached to the semiconductor substrate. The first passive electrode can be configured to contact a solution and to provide a first electrical voltage as function of a concentration of an ion within the solution. In certain examples, a passive reference electrode can be co-located on the semiconductor substrate. In some examples, processing electronics can be integrated on the semiconductor substrate.

Abstract: The present disclosure teaches a sensor system comprising at least two sensor elements causing increased reliability of individual sensor signals due to increased diagnostic coverage using diverse signal paths, diverse signal representations of sensor signals, merging of individual sensor signals maintaining independence of individual sensor signals comprised in protocol representations thereof.

Abstract: A flow cell includes a first layer, a second layer, and a third layer. The first layer includes a first flow path and a first electrode. The second layer includes a second flow path and a second electrode. The third layer is formed between the first layer and the second layer, and includes a first connection hole connecting the first flow path and the second flow path. The first electrode is disposed in the first flow path at a first side opposite to a second side where a sample is provided to the first flow path with respect to the first connection hole. The second electrode is disposed in the second flow path at a third side opposite to a fourth side where a fluid is discharged from the second flow path with respect to the first connection hole.

Abstract: A fiber optic sensor and related method are described, with the sensor including a cross-coupling element in the optical path between a polarizing element and a sensing element, but separated from the sensing element itself; with the cross-coupling element generating a defined cross-coupling between the two orthogonal polarization states of the fundamental mode of a polarization maintaining fiber guiding light from the light source to the sensing element thus introducing a wavelength-dependent or temperature-dependent sensor signal shift to balance wavelength-dependent or temperature-dependent signal shifts due to other elements of the sensor, particularly signal shifts due to the wavelength dependence of the Faraday effect or the electro-optic effect constant.

Abstract: An object of the invention is to reduce 1/f noise and white noise at the same time by integrally reducing noise of an MR sensor and noise of an operation circuit part. A magnetoresistive sensor according to the invention includes a plurality of magnetoresistive sensor parts each having a bridge circuit in which four magnetoresistive elements are connected, and outputs of the respective magnetoresistive sensor parts are connected in parallel to one another to an input of an amplifier circuit (see FIG. 2).

Abstract: An encoder includes a scale unit having a substrate configured of a metal material and in which a pattern is formed on a first surface of the substrate and a passive state member is formed on a second surface different from the first surface in the substrate, and a detection unit that is configured to move relative to the scale unit and detects the pattern.

Abstract: A water in fuel (WIF) sensor is disclosed, and comprises a main body defining a surface, a pair of electrical contacts, and a third electrical contact assembly. The pair of electrical contacts each have a first end portion that is located along the surface of the main body. A predetermined resistance flows between the electrical contacts when the first end portions of the electrical contacts are submerged in water. The third electrical contact assembly has a first end portion and a second end portion. The first end portion of the third electrical contact assembly is located along the surface of the main body and the second end portion of the third electrical contact assembly is connectable to a ground.

Abstract: A surface marking tool, comprising a housing a sensor coupled in the housing to identify a specific location on a surface a marker having a back end and an engaging end, whereby the back end is coupled to the underside of the housing and the engaging end extends beyond the underside of the housing to engage with the target surface; and at least one foot coupled to the underside of the housing. Another aspect of the present invention includes a surface marking tool, comprising a housing, a sensor coupled in the housing to identify a specific location on a surface, a marker having an engaging end, whereby the marker is housed in an open faced cartridge with a back end, whereby the engaging end of the marker extends beyond the cartridge to engage with the target surface, and the back end of the cartridge is coupled to the underside of the housing and extends beyond the underside of the housing, and at least one foot coupled to the underside of the housing.

Abstract: An electronic circuit and method for measuring currents during charging and discharging of a secondary battery are disclosed having a secondary battery, at least one shunt for determining the electrical current during charging and/or discharging of the secondary battery by measuring the voltage drop over the shunt, a switchable electrical load, two connectors for connecting a preferably switchable power supply to the electronic circuit for charging the secondary battery and a voltage measuring device.

Abstract: An equipment testing apparatus may include one or more test connections. The equipment testing apparatus may also include a power cable and/or power supply in electrical communication with the one or more test connections. The power cable and/or power supply may be configured to provide electrical energy to the one or more test connections to verify the performance of various components of the equipment to be tested. In particular, an equipment testing apparatus may be configured to verify the performance of various components of drill pipe inspection equipment. Components of drill pipe inspection equipment that are tested may include a drive motor, an electromagnetic coil, and a signal cable.

Abstract: The present invention discloses a stud sensor, which is used for detecting the object hidden behind a surface, including a first capacitor plate, a second capacitor plate, a first detection circuit coupled to the first capacitor plate, a second detection circuit coupled to the second capacitor plate and a micro control unit. The first detection circuit processes the voltage signal corresponding to the first capacitance of the first capacitor plate and outputs a first voltage signal to the micro control unit. The second detection circuit processes the voltage signal corresponding to the second capacitance of the second capacitor plate and outputs a second voltage signal to the micro control unit. The micro control unit compares the first voltage signal and the second voltage signal to determine the position information including the central position of the object.

Abstract: It is proposed a system for condition monitoring electric machine and the method thereof. The system includes a portable unit, being adapted for free movement around said electric machine; a magnetic field sensor, being adapted for measuring magnetic field intensity at at least one of a plurality points of a path of said free movement; a processing unit, being adapted for receiving at least one corresponding magnetic field intensity signal from said magnetic field sensor, comparing at least one magnetic field intensity value to at least one corresponding expected value, and determining, based on the comparison, if a fault is present in the electric machine; wherein: said magnetic field sensor and said processing unit are integrated into said portable unit.

Abstract: A system and method for effective estimation of properties of a formation using acoustic array processing is disclosed. An acoustic tool is directed to a zone of interest in the formation and generates a first signal. Real data corresponding to the first signal is then received. One or more basic parameters are provided as input. The basic parameters may include parameters relating to the acoustic tool or parameters relating to the zone of interest. A time semblance shear slowness and a frequency semblance shear slowness are determined using the basic parameters. A mask is then selected using the determined time semblance and frequency semblance shear slowness values and used to isolate a dispersion curve. A shear slowness value is selected from the dispersion curve and quality control is performed on the selected shear slowness value.

Abstract: In order to obtain highly accurate images with a high SNR without extending measurement time or increasing hardware costs and software processing costs, the present invention narrows a dynamic range (amplitude) of an NMR signal to be received by a reception coil (reception NMR signal) in an MRI apparatus. In order to narrow the amplitude of the reception NMR signal, according to the position of an imaging region, a peak position of the reception NMR signal is shifted from the said position in the present embodiment. The shift is achieved by applying frequency encoding gradient magnetic field pulses whose application amount in the time direction is different according to the position. This is realized by a plurality of gradient magnetic field generating systems that can be driven independently.

Abstract: A temperature control system and method are provided. The system includes a first channel, a second channel, a heating element, a DUT chamber, a converter, a first PID controller, and at least one switching regulator. The heating element is disposed downstream of the first and the second channels to heat the first air from the first channel or the second air from the second channel according to an input power so as to provide mixing air with a temperature into the DUT chamber. The converter converts an AC power to a DC power. The first PID controller provides a first input signal according to a first set point and an amount of power consumed by the heating element. The input power is adjusted by the switching regulator to drive the heating element according to the first input signal. Thus, the use of electrical power is more efficient.

Abstract: A method for detecting an electrical current longitudinal variation in a power transmission system including a power cable. Electric losses and their location along the cable length can be detected. Current variation in a grounded metallic layer of a power cable is measured from Faraday rotation of polarised light travelling in a single-mode optical fiber wound in a radially external position with respect to the grounded metallic layer. Measurements of the Faraday rotation are carried out by means of polarization-sensitive optical time domain reflectometry (POTDR) or by polarization-sensitive optical frequency domain reflectometry (POFDR) while a direct current is injected in the metallic layer.

Abstract: Systems and methods for measuring alternating current (AC) voltage of an insulated conductor (e.g., insulated wire) are provided, without requiring a galvanic connection between the conductor and a test electrode or probe. A non-galvanic contact (or “non-contact”) voltage measurement system includes a conductive sensor, an internal ground guard and a reference shield. A common mode reference voltage source is electrically coupled between the internal ground guard and the reference shield to generate an AC reference voltage which causes a reference current to pass through the conductive sensor. At least one processor receives a signal indicative of current flowing through the conductive sensor due to the AC reference voltage and the AC voltage in the insulated conductor, and determines the AC voltage in the insulated conductor based at least in part on the received signal.

Abstract: A system for mapping a depth of an aquifer and determining the presence and salinity of water from the aquifer and methods for using the making/using the same includes a central processor. One or more horizontal loop transmitters can be coupled to the central processor, wherein said one or more horizontal loop transmitters produce a first half-sine pulse of magnetic field at a first pulse duration for measuring the resistivity of a ground surface. The one or more horizontal loop transmitters can produce a second sequence of half-sine pulses at a second frequency for creating an excitation field for magnetic resonance sounding. A multi-turn receiver loop antenna can also be coupled to the central processor, wherein said multi-turn receiver loop antenna receives an induced magnetic field from said one or more horizontal loop transmitters that is representative of the depth of an aquifer and the salinity of the water.