Abstract: Systems and methods for analyzing physical characteristics of a battery include arrangements of two or more transducers coupled to the battery. A control module controls one or more of the two or more transducers to transmit acoustic signals through at least a portion of the battery, and one or more of the two or more transducers to receive response acoustic signals. Distribution of physical properties of the battery is determined based at least on the transmitted acoustic signals and the response acoustic signals.

Abstract: A pressurizing short-circuit inspection apparatus, which includes compression plates arranged with a predetermined separation distance therebetween so that at least one of secondary battery cells is inserted therein, the compression plates being moved in ±X-axis direction to adjust the separation distance; and a pressurizing short-circuit inspection assembly having a cell pressing unit configured to press a predetermined region of a body of the secondary battery cell and a power supply unit provided in contact with an electrode lead of the secondary battery cell to apply a test voltage, the pressurizing short-circuit inspection assembly being respectively mounted to the compression plates to be movable along ±Y-axis direction, is provided.

Abstract: A method for non-destructive testing of a quality of an ultrasonic weld from a welding process includes detecting of a time-dependent measurement value over a period of time, where the measurement value is characteristic of a mechanical or electrical vibration behavior of a welding process to be tested. The method includes evaluating a measurement-value course of the detected time-dependent measurement value by using a Fourier analysis. The method further includes comparing a result of the evaluation to a reference value in order to test the quality of the weld. A measuring device and an ultrasonic welding system are also included.

Abstract: A cantilever (30) for an ultrasound acoustic microscopy device is provided comprising a transmission tip (31) to contact a sample (11) to therewith transmit an ultrasound acoustic signal as an ultrasound acoustic wave into the sample. The cantilever further comprises a reception tip (32) separate from the transmission tip (31) to contact the sample to receive an acoustic signal resulting from reflections of the ultrasound wave from within the sample.

Abstract: A device and method used for inspecting and measuring coiled tubing, production tubing or drill pipe as it enters the well. Defects such as internal and external wall loss, cracking and deformation can be detected and quantified. The axial motion of the tubing can be measured allowing for depth measurements that are more accurate and reliable than what can be obtained using an encoder wheel system.

Abstract: One illustrative integrated electromagnetic-acoustic sensor includes: a ground plane; a patch antenna above the ground plane to send or receive an electromagnetic (EM) signal having an EM signal frequency; and an array of capacitive micromachined acoustic transducers formed by cavities between the patch antenna and a base electrode to send or receive an acoustic signal having an acoustic signal frequency. One illustrative sensing method includes: driving or sensing a EM signal between a ground plane and a patch antenna; and driving or sensing an acoustic signal between the patch antenna and a base electrode, the base electrode and the patch antenna having an array of capacitive micromachined acoustic transducer cavities therebetween.

Abstract: A calibration apparatus for calibrating a laser Doppler vibrometer includes: a frequency shifter stage that: receives, from the laser Doppler vibrometer, primary laser light; produces frequency shifted light; communicates the frequency shifted light to a reflector; receives frequency shifted light reflected by the reflector; produces secondary light; and communicates the secondary light to the laser Doppler vibrometer, such that the laser Doppler vibrometer receives the secondary light from the frequency shifter stage and produces a synthetic velocity shift from the secondary light; and the reflector that receives and reflects the frequency shifted light back to the frequency shifter stage.

Abstract: A measurement method performed by a semiconductor manufacturing apparatus including a chamber is provided. In the measurement method, first measurement data including a signal of a resonance frequency of the chamber is acquired as reference data, in response to transmitting an electrical signal into the chamber while a jig capable of performing wireless communication is not placed in the chamber. Subsequently, second measurement data including the signal of the resonance frequency of the chamber and including a signal of a resonance frequency of a sensor installed in the jig is acquired, in response to transmitting an electrical signal into the chamber while the jig is placed in the chamber. By subtracting the reference data from the second measurement data, third measurement data is calculated.

Abstract: Test procedures and equipment for the test and calibration of ultra-small thermal imaging cores, or micro-cores are disclosed. Test fixtures for calibration and adjustment that allow for operation and image acquisition of multiple cores at a time may also be provided. Test procedures and fixtures that allow for full temperature calibration of each individual core, as well as providing data useful for uniformity correction during operation, may also be provided as part of the test and manufacture of the core.

Abstract: A method of imaging a turbine engine component with a first surface and a second surface that is spaced from the first surface. The turbine engine component includes a plurality of holes with inlets formed in the second surface or interior that are fluidly coupled to outlets formed in the first surface or exterior. The method includes determining at least one fluid frequency, determining at least one sampling frequency, and pulsing fluid through at least a portion of the interior of turbine engine component while imaging the turbine engine component.

Abstract: A multi-frequency wireless sensor for non-destructive testing of a test object, the sensor comprising: an ultrasound transducer having a plurality of operating frequencies; a first induction coil electrically coupled to the ultrasound transducer; a second induction coil; and a capacitance, connected in parallel with the second induction coil, such that the wireless sensor can operate at a first operating frequency or a second operating frequency when the sensor is excited by a remote device.

Abstract: A sensor device includes a substrate having a substrate surface, a first IDT electrode positioned on the substrate surface, a second IDT electrode positioned on the substrate surface, a waveguide, and a protective film. The waveguide is positioned on the substrate surface and between the first IDT electrode and the second IDT electrode. The waveguide includes a first immobilized layer positioned on the substrate surface and a second immobilized layer positioned on the first immobilized layer. The second immobilized layer is positioned inside an outer edge of the first immobilized layer as seen in a plan view.

Abstract: A method includes imaging a first graybody with a focal plane array (FPA), wherein the first graybody has a first emissivity, and imaging a second graybody having a lower emissivity than the first graybody. The method includes using data captured while imaging the first and second graybodies to perform non-uniformity correction (NUC) of the FPA.

Abstract: The present invention belongs to the technical field of oil field drilling, and relates to a ground testing device for a stabilized platform of a rotary steerable drilling tool. The ground testing device includes: a first supporting member and a second supporting member that are oppositely arranged, where the second supporting member is provided with a first mounting hole; a drill collar and a drill collar motor mounted outside the first supporting member, where a motor shaft of the drill collar motor penetrates the first supporting member and is connected to the drill collar, and a stabilized platform mounting assembly is arranged inside the drill collar; and a first vibration member connected to the drill collar and a second vibration member arranged in the first mounting hole in a sleeved manner, where an elastic member is arranged between the second vibration member and the second supporting member, and the elastic member is arranged on the second vibration member in a sleeving manner.

Abstract: An optical spectrometer uses broadband radiation detectors to measure thermal radiation generated by the varied heating of an object without complex mechanical mechanisms, narrowband filters, or the like. The received thermal radiation is used to deduce spectral qualities of either the thermal radiation emitter or a second object reflecting or transmitting this thermal radiation.

Abstract: A vehicle can comprise a battery cell, a monitoring device, and a controller. The monitoring device can comprise an ultrasound source and an ultrasound sensor. The ultrasound source can direct ultrasound at the battery cell, and the ultrasound sensor can detect ultrasound transmitted through or reflected from at least a portion of an interior of the battery cell. The ultrasound sensor can generate one or more signals responsive to the detected ultrasound. The controller can process the one or more signals from the ultrasound sensor and can output an indication of an internal state of the first battery cell.

Abstract: Example apparatuses and systems for a combined temperature and pressure sensing device with improved electronic protection are provided. An example apparatus includes a media isolation chamber assembly having a sleeve member and a bellows member, a first circuit board element disposed in the bellows member and encapsulated by insulator media in the bellows member, a pressure sensing element disposed in the bellows member and electrically coupled to the first circuit board element; and a temperature sensing element disposed in the sleeve member and electrically coupled to the first circuit board element.

Abstract: A measurement device includes a sensor that detects a particular substance, a storage unit that stores calibration data that indicate a relationship between a measurement value of the particular substance and an output of the sensor, and a calculation unit that calculates the measurement value of the particular substance from the calibration data based on the output of the sensor. The calculation unit produces a first waveform where a plurality of first outputs of the sensor are normalized, produces a plurality of second waveforms where a plurality of second outputs of the sensor that are included in the calibration data are normalized. The calculation unit calculates a measurement value of the particular substance based on the first waveform and the plurality of second waveforms.

Abstract: A defect inspection apparatus (100) is provided with and an excitation unit (1) for exciting elastic waves, an irradiation unit (2) for emitting laser light, a measurement unit (3) for measuring interference light, and a control unit (4). The control unit is configured to acquire an image (61) representing a vibration state of an inspection target object (7) in a measurement area based on a measurement result of the measurement unit (3), detect a discontinuous portion in a vibration state in the measurement area from the image representing the vibration state as a defect (73), and identify a type of the defect based on at least one of a shape (62) of the detected defect and the vibration state of a defective portion.

Abstract: The fixing force evaluation method of the present embodiment includes the natural frequency measurement step of measuring the natural frequency of the stator in which the tooth portions and the stator coil are fixed by the insulating paper, and the fixing force evaluation step of evaluating that the fixing force of the insulating paper is larger, when the natural frequency of the stator measured in the natural frequency measurement step is equal to more than a predetermined determination frequency, compared to when the natural frequency is lower than the determination frequency. Thus, since the fixing force of the insulating paper is evaluated in the fixing force evaluation step based on the natural frequency of the stator measured in the natural frequency measurement step, the fixing force of the insulating paper can be evaluated by measuring the natural frequency of the stator without destroying the stator.