Abstract: Systems for MRI and MEG detection with a single optically pumped magnetometer are provided herein. In one example, a system comprises a chip-scale device including a RF atomic magnetometer, which includes a laser configured to emit laser light, a photodetector, a vapor cell between the laser and photodetector, and a circular polarizer configured to circularly polarize the laser light emitted by the laser. A circularly polarized laser beam is configured to pump into an oriented state, spins of atoms in the vapor cell and to probe the atoms in the vapor cell, wherein probing includes detecting a local RF field. The chip-scale device further includes flux transformer coil(s) configured to couple RF signals from a source to the RF atomic magnetometer and DC coil(s) configured to generate a DC magnetic field oriented at 45 degrees relative to an optical axis of the laser light emitted by the laser.

Abstract: A testing device and a testing system are provided. The testing device includes a circuit mainboard. One side of the circuit mainboard includes a plurality of chip sockets, a plurality of power connectors, and a plurality of signal output connectors. A chip under test is detachably fixed on a chip carrier board. An external power supply can provide power to the chip under test on the chip carrier board through the power connectors and the circuit mainboard. Another side of the circuit mainboard a plurality of carrier board connectors. Each of signal carrier boards can be detachably disposed on the circuit mainboard through the carrier board connectors. Each of the signal carrier boards has a signal input connector and a connector at one end of a signal input line plugs into the signal input connectors.

Abstract: An insulation monitoring device is provided with a signal generation unit generating a measurement signal having a preset voltage and applying the measurement signal to the ground; a signal detection unit including a coupler resistor connected to a transmission line and a detection resistor provided between the coupler resistor and the other end of the signal generation unit, and detecting the voltage of the measurement signal distributed to the internal resistance of the insulation monitoring device according to the voltage difference across the detection resistor; and a control unit detecting a transient voltage, due to the charging and discharging of a system capacitor and generated by parasitic capacitance between the transmission line and ground, from the voltage detected by the signal detection unit, and checking the connection state of the insulation monitoring device to the transmission line and ground based on the result of detecting the transient voltage.

Abstract: Automated processing and radiomic analysis of magnetic resonance imaging (“MRI”), such as multi-contrast MR images, and magnetic resonance fingerprinting (“MRF”) data, such as quantitative parameter maps, are integrated into a single workflow.

Abstract: Systems and methods are provided for monitoring of blood flow using a dynamic phantom that incorporates optical properties and mechanical properties of the tissue surrounding an artery (e.g., the radial artery at the wrist). The phantom can include: a body with optical properties representative of surrounding skin layers; a vessel chamber with mechanical properties representative of the artery; and a pulsatile pump that cycles a blood-mimicking fluid (BMF) to maintain physiologically accurate pressure fluctuations typically seen at the artery. The phantom can be fabricated through the combination of rapid prototyping using both stereolithography (SLA) and fused deposition modeling (FDM) methods to develop mold casting to control geometric properties. Photoplethysmography (PPG) signals for different properties representing varying skin tone and obesity can be collected using a pulse oximeter device.

Abstract: A structure and method of operating an optical step-up transformer are described. The optical step-up transformer has at least one photodiode and at least one photoreceiver. The photoreceiver receives light emitted from the photodiode and generates a voltage proportional to the number of series-connected photoreceivers. The photodiode and photoreceiver may be electrically isolated or may share a common anode or cathode. The voltage applied to the photodiode may be a DC or PWM signal.

Abstract: A magnetic resonance imaging (MRI) apparatus that includes a multi-resonance transmit/receive (T/R) switch, one switch design having a top side and a bottom side of a microstripline based hybrid coupler, a first pin diode, a second pin diode, four vertical transmission lines and six horizontal transmission lines arranged in a bended manner on the microstripline. The top side is associated with a first port and a second port, and electrically connected to the first pin diode and the second pin diode. The bottom side is associated with a third port and a fourth port, and electrically connected with the first pin diode and the second pin diode. The switch receives radio frequency (RF) pulses of different frequencies transmitted to and received from an MRI RF coil where the different frequencies are received concurrently and without tuning by the multi-resonance T/R switch from the MRI RF coil.

Abstract: There is provided a determination apparatus including: a result acquisition unit configured to acquire test results of tests on a plurality of items which are performed on a device under measurement; and a first determination unit configured to determine whether to retest a device under measurement that has failed the test, in which the first determination unit is configured to perform the determination based on reproducibility of the test results in a case where the tests have been performed on a plurality of devices under measurement multiple times in advance.

Abstract: A method for detecting a short circuit in a wiring harness that contacts an electric device. The method includes: carrying out a first and second test measurements, in which a first and second predefined electric current is applied to an electric device connected to a line to be monitored of the wiring harness and resulting first and second electric voltages are detected, the second electric current being greater than the first electric current; ascertaining a measurement current based on a predefined target electric voltage by interpolation from the first and second electric currents and the first and second electric voltages; and carrying out a measurement in which the measurement current is applied to the electric device connected to the line and a resulting electric measurement voltage is detected; wherein a short circuit is detected based on a comparison of the measurement voltage and the target voltage.

Abstract: A tester board system that includes a frame upon which a plurality of motherboards can be inserted for the purposes of BI and other types of component testing. Each motherboard has memory channels that can accommodate a plurality of memory components for testing, and the memory channels are connected to a CPU. In preferred embodiments, the CPU is on the underside of the motherboard and the memory channels on the top side of the motherboard.

Abstract: Disclosed is a probe including a first transmitter provided to generate a first transmission signal, a second transmitter provided to generate a second transmission signal, a receiver provided to receive the first transmission signal generated from the first transmitter or the second transmission signal generated from the second transmitter, a signal attenuator provided to attenuate the first transmission signal or the second transmission signal, a first switching element provided to transmit the first transmission signal to the signal attenuator or to transmit the second transmission signal transmitted through the signal attenuator to the receiver, a second switching element provided to transmit the second transmission signal to the signal attenuator or to transmit the first transmission signal transmitted through the signal attenuator to the receiver, a first node provided between a first transducer and the first switching element, a second node provided between a second transducer and the second switching

Abstract: Methods of, inter alia, detecting the presence of one or more analytes in one or more query samples include providing one or more sensor that each include biomolecules disposed on a functionalized surface of one or more giant magnetoresistance (GMR) sensors. Modes of operation remove or add magnetic beads from the vicinity of sensor surfaces by interactions with the biomolecules. The methods feature, inter alia, detecting the presence of one or more analytes in one or more query samples by measuring magnetoresistance change of the one or more GMR sensors based on determining magnetoresistance before and after passing magnetic particles over the one or more sensors.

Abstract: A diagnostic apparatus includes a first array of superconducting quantum interference devices (SQUIDs). Each SQUID of the first array is configured to be coupled respectively to a test circuit of a second array of test circuits such that an electronic noise present in the test circuit induces a first current that flows through the SQUID. The diagnostic apparatus also includes a current source configured to provide a second current for each SQUID of the first array such that the second current flows through the SQUID. Each SQUID of the first array is configured to generate an output in a form of: a first voltage in response to a sum of the first current and the second current being less than a threshold current, and a second voltage in response to the sum of the first current and the second current being greater than the threshold current.

Abstract: Aspects of the present disclosure describe distributed fiber optic sensing (DFOS)/distributed acoustic sensing (DAS) systems, methods, and structures that employ machine learning and provide for the automatic remote inspection and condition evaluation of wooden utility poles. Operationally, audio (acoustic) signals are obtained using DFOS/DAS when a service technician/inspector strikes the wooden utility poles with an impact tool such as a hammer. Historical audio DFOS/DAS signals that include signals resulting from hollow (decayed) utility poles and solid (good) poles are used to train one or more machine learning models and the trained machine learning models are subsequently used to evaluate real-time impact data collected from DFOS/DAS and determine utility pole condition in real-time.

Abstract: A qubit interaction circuit includes a first qubit device, a second qubit device, a first resonator, a second resonator, a first capacitor coupling the first qubit device to the first resonator and a second capacitor coupling the second qubit device to the second resonator. An rf-SQUID circuit includes an rf-SQUID loop, an rf-SQUID controller, and a dc-SQUID loop. The rf-SQUID controller is configured to influence a first flux of the rf-SQUID loop and the dc-SQUID loop, the rf-SQUID circuit coupling the first resonator with the second resonator. A dc-SQUID controller is configured to influence a second flux of the rf-SQUID loop and the dc-SQUID loop.

Abstract: A diffraction system for determining a crystalline structure of a sample collects a series of diffraction frames from a crystal sample illuminated by a beam of photonic or particulate radiation, such as X-rays. A plurality of software modules for processing the detected diffraction frames perform different tasks in refining the collected diffraction data, such as harvesting, indexing, scaling, integration, and structure determination. Output parameters from certain modules are used as input parameters in others, and are exchanged between the modules as they become available. The modules operate simultaneously, and generate successive versions of output parameters as corresponding input parameters are changed until a final result is achieved. This provides a system of structure determination that is fast and efficient.

Abstract: A position detection device for detecting a position of a rack shaft having a rack teeth portion that meshes with a pinion gear in a part in an axial direction, is provided with a capacitance member that is arranged around a periphery of the rack shaft and forms a capacitive load together with the rack shaft, and a calculation unit that calculates the position of the rack shaft based on a capacitance between the rack shaft and the capacitance member. The capacitance member is arranged to face at least a part of the rack teeth portion. The capacitance changes in accordance with the position of the rack shaft.

Abstract: A fuse monitoring device for monitoring a fuse is disclosed. The fuse monitoring device includes at least one sensor, at least one processor and a housing. The sensor is configured to be operably connected to the fuse and configured to measure fuse data associated with the fuse. The sensor includes a current sensor that includes a frame and a core. The at least one processor is communicatively coupled to the at least one sensor and is configured to transmit the fuse data. The housing includes a mounting block that includes an inner opening. The frame of the current sensor is configured within the inner opening of the mounting block.

Abstract: In one embodiment, an electromagnetic imaging method, comprising: determining electromagnetic resonance data based on interrogating a stored commodity; and estimating features of the stored commodity based on the electromagnetic resonance data.

Abstract: Provided is a technique of identifying fluorescence emitted from a measurement target, the measurement accuracy of the technique being improved by processing data also including background light. A fluorescence detection device includes: a first generating section that generates excitation light whose intensity is modulated and which excites a phosphor that emits fluorescence whose intensity varies according to magnetic resonance; and a second generating section that generates a magnetic field or an electromagnetic wave each of which causes the magnetic resonance so that the intensity of the fluorescence emitted from the phosphor is changed.