Abstract: A high-frequency magnetic field generator 2 applies microwave to a magnetic resonance member 1 capable of an electron spin quantum operation using the microwave. A magnet 3 applies a static magnetic field to the magnetic resonance member 1. An irradiating device 12 irradiates the magnetic resonance member 1 with light of a specific wavelength. A flux transformer 4 senses a measurement target magnetic field using a primary coil 4a and applies an application magnetic field corresponding to the sensed measurement target magnetic field to the magnetic resonance member 1 using a secondary coil 4b. Further, the magnetic resonance member 1 is arranged at a position in a hollow part of the secondary coil 4b of the flux transformer 4 and in a hollow part of the magnet 3.

Abstract: An apparatus including an electrical cable provided with light emitters along its length for visual communication of its position/extent and of statuses of the apparatus, said statuses including at least statuses related an insulation resistance between conductors of the electrical cable. The apparatus is provided with a power unit enabling status updates and light emission also when the electrical cable is disconnected and thus not in use.

Abstract: The disclosure relates to a magnetic resonance imaging device comprising a main magnet, a gradient system including at least one gradient coil, a thermal bus structure, a shield structure arranged between the gradient system and the main magnet and a cryocooler including a cold head, wherein the shield structure is configured to reduce a transport of heat energy to the main magnet and wherein the main magnet comprises a magnet spacer configured for spacing individual coils of the main magnet, wherein the thermal bus structure comprises at least one thermal bus element extending through the magnet spacer for providing a thermal connection between the cold head of the cryocooler and the shield structure.

Abstract: Example devices and techniques are described herein for determining a relative state-of-charge of a battery. An example device includes memory, a battery, a temperature sensor and processing circuitry coupled to the memory and the temperature sensor. The temperature sensor may be configured to sense a battery temperature. The processing circuitry may be configured to estimate an end-of-discharge state-of-charge of the battery. The processing circuitry may be configured to estimate a remaining capacity of the battery. The processing circuitry may be configured to estimate a full charge capacity of the battery. The processing circuitry may be configured to estimate a relative state-of-charge of the battery and generate a representation of the estimate of the relative state-of-charge of the battery for output.

Abstract: A gradient coil system for use in a magnetic resonance device comprises a main coil having at least two main sub-coils for generating a gradient coil magnetic field in a target volume, a shielding coil having at least two shielding sub-coils for shielding the main coil, and a power supply system configured to adjust a plurality of electric currents. The main coil and the shielding coil are arranged coaxially along a z-axis, wherein the gradient coil magnetic field is aligned with the z-axis and varies along a gradient direction. The gradient coil system comprises N sub-coil groups, with N?2, with each of the N sub-coil groups comprising a main sub-coil and a shielding sub-coil (3a-3d) connected in series. The power supply system is configured to adjust the electric current of each of the N sub-coil groups individually. The system provides strong gradient coil magnetic fields with improved switching time.

Abstract: A method for monitoring operation status of an electric motor in real time, including: reading a drive application signal of the electric motor; selecting a frequency to be observed; analyzing the frequency to be observed to obtain a spectrum thereof; analyzing the spectrum; and detecting the operation status of the electric motor on the basis of the spectrum analysis.

Abstract: A method for monitoring hydraulic fracturing range of a surface vertical shaft is provided by the present disclosure, belonging to the technical field of ultrahigh-pressure hydraulic fracturing monitoring of the coal mine vertical shafts.

Abstract: A portable monitor used to measure landfill gas, landfill well parameters, and/or gas from a well, biogas facility, subterranean location, and any other testing location. The portable fluid monitor is particularly useful in measuring gas pressures and compositions of gases.

Abstract: A system and method for measuring chemicals, analytes or other factors in food. The present invention relates to invasive transcutaneous measurement and minimally-invasive or non-invasive transdermal measurement of chemicals and analytes related to spoilage and contamination in a consumable host, primarily seafood and meat as well as other perishable foods. The invention also measures and monitors other factors including temperature, humidity, pH, moisture and location.

Abstract: Various embodiments of the teachings herein include a computer aided method for generating training data for a neural network designed to determine a pollutant concentration at a measurement station from a pollutant emission. The method may include: providing a measurement series of the concentration containing a value above a threshold; providing a measurement series for a variable related to the pollutant concentration; providing a transmission model modelling a relationship between the pollutant emission, the measured variable, and the pollutant immission at the measurement station; computing a first value of the pollutant immission using the transmission model using a value of the measured variable; computing a second value of the pollutant immission using the transmission model by numerically altering the measured value of the measured variable; and generating a synthetic measurement series as training data by an alteration based at least in part on a relative change in computed values.

Abstract: There has been a problem that a rotation second-order angle error due to a phase difference between a sine signal and a cosine signal deviating from ?/2 cannot be reduced. Therefore, provided is an angle detection device that can suppress a second-order angle error caused due to the phase difference between a first sine signal and a second sine signal deviating from ?/2, by calculating a detection angle from a first detection signal based on the sum of two sine signals having different phases and a second detection signal based on the difference of the two sine signals.

Abstract: A testing system for testing an image sensor, includes a probe card, a pogo block receiving output signals of the probe card, an interface board configured to receive output signals of the pogo block, convert the received output signals of the pogo block, and output the converted signals through a cable, and a testing apparatus connected to the interface board through the cable. The testing apparatus is configured to test the device under test through signals received through the cable. The interface board includes an active interface module configured to amplify the received output signals of the pogo block, convert the amplified signals into signals having a same frequency as the received output signals of the pogo block, and transmit the converted signals to the cable.

Abstract: A vehicle monitoring system configured to detect and localise an anomaly in or on a vehicle. The system includes a detector configured to detect an invisible indicator originating from or emitted by the anomaly and generate a detection signal associated with the invisible indicator, a camera configured to capture an image of the vehicle, and a controller configured to process the detection signal generated by the detector and the image of the vehicle captured by the camera. The controller is further configured to, based on processing of the image and the detection signal, generate a visualisation of the detection signal overlaid onto the image of the vehicle for localisation of the anomaly in or on the vehicle.

Abstract: A detection device (100) includes a detection mat (102) having a plurality of detection coils (106), and at least one pair of groups of detection coils (106), the pair of groups of detection coils (106) includes first and second groups of detection coils (106). The first and second group of detection coils (106) comprises first and second first and second impedance values. The detection device (100) includes one or more drive sub-systems (112) and a comparison sub-system (112). The drive sub-systems (112) are operatively coupled to the detection mat (102) and configured to excite at least one pair of groups of detection coils (106). The comparison sub-system (114) is operatively coupled to the detection mat (102) and configured to receive a differential current signal from the pair of groups of detection coils (106), the comparison sub-system (114) is configured to generate a control signal based on the differential current signal.

Abstract: In order to provide a wearable device that enables determining with high accuracy whether the wearable device is mounted on a living body or a fitting to be worn by a living body, the wearable device includes a base member, a receiving quality index acquisition unit, a sensor, and a transmitter. The receiving quality index acquisition unit receives a GPS signal, and acquires a receiving quality index of the GPS signal. The sensor outputs a signal depending on a positional relation of the living body and the sensor or the fitting and the sensor. The transmitter transmits the receiving quality index and the output of the sensor to a mounting determination unit. The determination unit determines whether the wearable device is mounted on the living body or the fitting, based on the receiving quality index and the output of the sensor.

Abstract: A method of predicting a maximum discharge current for a battery cell includes: receiving a discharge time and a discharge limitation voltage; setting a discharge reference voltage; obtaining a proportional constant and an index parameter corresponding to the discharge reference voltage, wherein the proportional constant and the index parameter are applied to a relation between a constant current and a discharge time during a discharge; calculating a constant current for the discharge time by using the proportional constant and the index parameter; and adjusting the discharge reference voltage when a difference between a temporary discharge limitation voltage at which a voltage due to the constant current and an internal resistance of the battery cell is dropped from the discharge reference voltage and the discharge limitation voltage deviates from a predetermined error.

Abstract: A method may include selecting, based on a condition of an electromagnetic load, a selected measurement technique from a plurality of impedance measurement techniques for measuring an impedance of the electromagnetic load and performing the selected measurement technique to generate an estimate of the impedance of the electromagnetic load.

Abstract: Embodiments of a portable verification system can move from one commercial building or residential home gas flow meter location to another and temporarily connect to the building's or home's natural gas piping. The portable verification system may be connected to the gas flow meter by a flexible hose having a lap joint flange at one end. Adaptor fittings can be used to provide additional versatility. When in an intended use, natural gas flows into the reference meter and then into the gas flow meter connected to the commercial building or residential home. Downtime is limited to the time required to complete a circuit between the gas flow meter and the portable verification system.

Abstract: Discussed is a contactor management method and a battery system to perform the method, wherein the battery system includes a contactor connected between a battery pack and an external device; a voltage measurer to measure a first operation voltage supplied to the contactor; and a controller to determine opening or closing of the contactor based on the first operation voltage measured from the voltage measurer, wherein the controller determines the contactor as open in an opened state when the first operation voltage is not supplied to the contactor, determines the contactor as closed in a closed state when the first operation voltage is supplied to the contactor, and counts each openings and closings of the contactor and determines a replacement time of the contactor based on a sum value of the counts exceeding a predetermined reference value.

Abstract: The present disclosure provides systems and methods for removing electromagnetic interference from low-field magnetic resonance images. In one aspect, a method can include projecting a low-field strength magnetic field toward an object of interest located within a field of view and transmitting a radio frequency pulse sequence to a radio frequency coil assembly configured to selectively excite magnetization in the object of interest within the field of view. The method can further include receiving an output signal from the radio frequency coil assembly during a signal acquisition period and receiving a sample signal from the radio frequency coil assembly during an interference period. The method can further include comparing the output signal and the sample signal to identify an interference component and adjusting the output signal based on the interference component.