Abstract: A technique utilizes spatially resolved temperature measurements to infer the temperature of a subsea infrastructure. According to an embodiment, temperature data, e.g. a temperature map, is determined for the subsea infrastructure and comprises performing remote temperature measurements of water surrounding the subsea infrastructure. Additionally, a metrological scan of the subsea structure may be obtained. Furthermore, a simulation or simulations may be run for an assumed temperature profile along a surface of the subsea infrastructure. The data obtained from the remote temperature measurements, the metrological scan, and the simulation is processed to determine a temperature profile of the subsea infrastructure. This temperature profile can then be used to facilitate a variety of subsea infrastructure management decisions.

Abstract: A method for determining a quality of a friction stir welded seam is described. The method involves applying an impact to a welded plate and comparing its damping capacity with the damping capacity of a geometrically equivalent defect-free plate. Damping capacities that differ by a small percent difference indicate that the welded plate is also defect-free. This method is particularly advantageous when dealing with small defects, which produce miniscule changes in natural frequency which may not be measureable.

Abstract: A lens allows infrared light to pass therethrough. An infrared sensor includes infrared detection elements arranged in two or more columns. The infrared sensor is rotated around a scan rotation axis that passes through part of the lens to scan a detection range, and outputs an output signal indicating a thermal image of the detection range. At least two infrared detection elements in the infrared sensor are located at positions displaced from each other with respect to the scan rotation axis. Among the infrared detection elements, the number of first infrared detection elements having a smaller half-width of a point spread function in a scan direction than that in the direction of the scan rotation axis is larger than the number of second infrared detection elements having a larger half-width of a point spread function in the scan direction than that in the direction of the scan rotation axis.

Abstract: A brake temperature sensing system for an aircraft including a sensor apparatus and an interrogation apparatus. The sensor apparatus includes a temperature sensor for attachment to a brake disc of an aircraft brake, and a relay for attachment to the brake. The temperature sensor is configured to wirelessly transmit a measurement signal containing information relating to a temperature of the brake disc, responsive to receiving a wireless interrogation signal. The relay is configured to receive an interrogation signal from the interrogation apparatus; wirelessly transmit the interrogation signal to the temperature sensor; receive the wireless measurement signal from the temperature sensor; and transmit the received measurement signal. The interrogation apparatus comprises a controller configured to generate an interrogation signal; and a transceiver configured to transmit the generated interrogation signal to the sensor apparatus; and receive the measurement signal transmitted by the sensor apparatus.

Abstract: A microelectronic chip device includes a semiconductor substrate and multiple on-chip strain sensors (OCSSs) constructed on the substrate at various locations of the substrate. The OCSSs may each include multiple piezoresistive devices configured to sense a strain at a location of the various locations and produce a strain signal representing the strain at that location. A strain measurement circuit may also be constructed on the semiconductor substrate and configured to measure strain parameters from the strain signals produced by the OCSSs. The strain parameters represent the strains at the various location. Values of the strain parameters can be used for analysis of mechanical stress on the chip device.

Abstract: Methods and apparatus are disclosed for detecting a rate of change of temperature in the environment around a sensing optical fibre at a position along the fibre, in which a time varying coherent Rayleigh backscatter interference signal is detected using probe light backscattered within the sensing fibre from the position. A spectral density profile is calculated which represents frequency components in time variations of the interference signal. One or more properties of a feature of the spectral density profile are then used to determine the rate of change of temperature. The feature may be, for example, a decline in the spectral density profile with increasing frequency, or a peak in the spectral density profile.

Abstract: Methods and systems for analyzing a field. The methods and systems acquire a thermal image indicative of thermal energy emitted by the soil and/or plants in the field and process the thermal image to assess variations in certain characteristics of the soil and/or plants.

Abstract: Actuator bracket having a sensor is disclosed. An example apparatus includes a bracket to couple a controller to an actuator. The bracket has a first end, a second end opposite the first end, and a first side extending from the first end to the second end. The first end is to couple to an actuator and the second end is to couple to a controller. The apparatus also includes a first sensor coupled to the first side at the first end of the bracket. The first sensor is to measure a characteristic of the first end when the bracket is coupled to the actuator.

Abstract: An air temperature sensor for use on an aircraft can include a housing defining an interior and having a trailing edge, a temperature sensor having a distal end and located within the interior, a support tube surrounding at least a portion the temperature sensor, an element shroud surrounding at least a portion of support tube, and a bushing isolating the trailing edge of the housing from the distal end of temperature sensor.

Abstract: An electronics device includes a power semiconductor device including a temperature detection diode, a first semiconductor integrated circuit device including a detection circuit for detecting VF from the temperature detection diode and a second semiconductor integrated circuit device. The second semiconductor integrated circuit device includes, an outside air temperature acquisition unit which acquires outside air temperature information, a storage which stores temperature characteristic data of the temperature detection diode and a first value based on a signal from the detection circuit at a first temperature and a temperature arithmetic processing unit which calculates a temperature of the power semiconductor device from a third value based on a signal from the detection circuit, the temperature characteristic data, the first temperature acquired by the outside air temperature acquisition unit and the first value.

Abstract: A method for determining a quality of a friction stir welded seam is described. The method involves applying an impact to a welded plate and comparing its damping capacity with the damping capacity of a geometrically equivalent defect-free plate. Damping capacities that differ by a small percent difference indicate that the welded plate is also defect-free. This method is particularly advantageous when dealing with small defects, which produce miniscule changes in natural frequency which may not be measureable.

Abstract: The present invention is directed to a temperature detecting element including base materials provided with substrates and electrodes arranged on the substrates, and a temperature detector arranged to electrically contact the electrodes on the substrates, in which a change in an electromagnetic wave absorbing property (light-absorbing property) and a change in an electrical property (resistance value) corresponding to a temperature change of the temperature detector are reversible. The temperature detecting element is easily stored and managed before use, and a temperature change in a temperature management environment can be accurately detected.

Abstract: A system, method, and computer program product for verifying a purported composition of material in a solid metal object based on heat transfer characteristics. Embodiments include determining, using a group of temperature sensors included in a heat sink, a heat transfer profile for the heat sink when connected to the solid metal object. One or more embodiments include comparing the heat transfer profile for the solid metal object to a baseline heat transfer profile determined based on dimensions of the solid metal object and the purported composition. One or more embodiments include determining, based on the comparing, a difference between the heat transfer profile and the baseline heat transfer profile. And one or more embodiments include indicating that the purported composition is verified in response to determining that the difference between the heat transfer profile and the baseline heat transfer profile is within a threshold.

Abstract: Dilatometer systems for measuring characteristics of material samples are disclosed. In one embodiment, a dilatometer system includes a reactor adapted to receive the test sample, a density trap in fluid communication with the reactor, a first fluid selectively filling the reactor and a portion of the density trap, and a second fluid selectively filling a portion of the density trap. The first fluid and the second fluid are immiscible with one another and selectively form an immiscible fluid boundary in the density trap. The dilatometer system further includes a heater that selectively heats the first fluid.

Abstract: A method for determining a quality of a friction stir welded seam is described. The method involves applying an impact to a welded plate and comparing its damping capacity with the damping capacity of a geometrically equivalent defect-free plate. Damping capacities that differ by a small percent difference indicate that the welded plate is also defect-free. This method is particularly advantageous when dealing with small defects, which produce miniscule changes in natural frequency which may not be measureable.

Abstract: An acoustic volume sensing device is disclosed. The device includes a housing comprising a reference volume chamber and a variable volume chamber, the reference volume chamber and the variable volume chamber connected by a resonant port, a first MEMS microphone located in acoustic relation to the variable volume chamber, a second MEMS microphone located in acoustic relation to the reference volume chamber, a MEMS speaker located in acoustic relation to the reference volume chamber, and a circuit board in electric connection with the first and second MEMS microphones and the MEMS speaker.

Abstract: A temperature measuring device includes at least one first distance sensing unit and a second distance sensing unit for outputting first and second distance sensing signals, respectively; a temperature sensing unit for outputting a temperature sensing signal; a display unit for displaying the temperature measurement value; and a micro processing unit for receiving the first and the second distance sensing signals, and then determining, according to the first and the second distance sensing signals, whether the display unit displays the temperature measurement value calculated according to the temperature sensing signal. As a result, the at least two distance sensing units are used to prevent the temperature measuring device from executing the temperature measurement when the sensing unit of the thermometer obliquely points to a to-be-sensed part of a to-be-measured target to cause a large measurement angle.

Abstract: A sensor circuit includes a bandgap reference circuit (BGREF) that produces two outputs, a temperature dependent output and a reference voltage, which does not change with temperature. The temperature dependent output includes a PTAT (proportional to absolute temperature, rising with increased temperature) portion and a CTAT (complementary to absolute temperature, falling with increased temperature) portion. Circuitry is provided that calculates the reference voltage by adding the PTAT portion and a divided version of the CTAT portion in which the CTAT portion has been divided by a divisor.

Abstract: Using various embodiments, an autonomous robot using data captured from a living subject are disclosed. In one embodiment, an autonomous robot can be trained using previously captured sensor data by receiving the sensor data, processing the sensor data and transmitting control signals to cause a movement in at least one portion of the autonomous robot. The movement can be related to an interaction of the autonomous robot with its surroundings, wherein the movement generates movement data. Thereafter, a predictive analysis can be performed on the movement data to learn a capability of generating actions that are spontaneous and adaptive to an immediate environment of the autonomous robot.

Abstract: A conduit can include a sidewall and at least a first cavity can be disposed in the sidewall. The first cavity may include a first base surface portion and an opposing first cover surface portion disposed radially between the first base surface portion and the first inner surface so that a first portion of the sidewall is provided radially between the first cover surface portion and the inner surface. A first aperture may be in communication with the first cavity and may be axially spaced apart from the first cover surface portion. A first sensor may have a transducer portion insertable through the first aperture and positioned within the first cavity. The transducer portion may be disposed radially between the first base surface portion and the first cover surface portion and being axially spaced apart from the first aperture.