G01K1/00

Voltage and temperature monitoring in power supplies
10908029 · 2021-02-02 · ·

A device for measuring voltage and temperature in a power supply is disclosed. The device includes a pin to be coupled to a temperature measuring circuit and power inputs of the power supply. The device is configured to measure a voltage at the power inputs and when the voltage changes are within a predetermined threshold for a predetermined time period, the device is configured to measure the temperature.

Thermally isolated thermocouple

A thermocouple assembly may feature a plurality of temperature sensors formed by thermocouple junctions. The sensors may be disposed within an inner diameter of the tubular element and sealed within the tubular element by thermally conductive material. An air gap may be defined by the thermally conductive material and the interior diameter of the tubular element between each pair of adjacent temperature sensors to improve thermal isolation.

Method for inspecting composite structures using quantitative infra-red thermography

A system and method for inspecting a surface of a structure for defects includes an inspection apparatus having a heating device for heating a section of the surface of the structure, an infrared camera for receiving infrared radiation from the surface in response to heating, a controller configured to generate thermographs from the received infrared radiation, and a communication device. A training system includes an expert system module configured to determine correlations between a set of thermographs generated by a thermal simulation of modeled structural elements with defects, and parameters of the modeled structural elements. A computer system communicatively coupled to the training system and the inspection apparatus, is adapted to receive thermographs received from the inspection apparatus and to detect quantitative parameters of defects in the structure using the correlations obtained from the training system.

Temperature detection device
11054316 · 2021-07-06 · ·

A temperature detection device includes a thermistor element that includes a thermosensitive body configured to sense heat of a coil element and an electric wire electrically connected to the thermosensitive body, and a holder assembling the thermistor element to the coil element. The holder includes a thermosensitive body holder that holds a reinforcing portion of the thermosensitive body disposed sideways along a front surface of the coil element and is provided with a first resin reservoir enclosing a thermosensitive body contact portion of the thermosensitive body, and an electric wire holder holding the electric wire. The thermosensitive body contact portion is in contact with the coil element while being enclosed with the first resin reservoir. According to the temperature detection device, it is possible to more accurately detect temperature of a coil with high responsiveness while promoting miniaturization of the temperature detection device.

Tubular wire shielding for an exhaust gas temperature sensor arrangement, exhaust gas temperature sensor arrangement and method for assembling an exhaust gas temperature sensor arrangement
11054314 · 2021-07-06 · ·

The present invention relates to a tubular wire shielding (9) for an exhaust gas temperature sensor arrangement (1), the tubular wire shielding (9) comprising a first shielding tube (13) comprising one or more through channels for accommodating one or more wires (6a, 6b, 8a, 8b, 11a, 11b) and/or for accommodating one or more temperature measurement sensors (7), the tubular wire shielding (9) furthermore comprising a second shielding tube (14) radially surrounding the first shielding tube (14). It is an object of the invention to provide a tubular wire shielding (9) and an exhaust temperature sensor arrangement (1) which are of good mechanical stability. The object is solved in that the tubular wire shielding (9) comprises a first tube adhesive layer (15) arranged interposed between the first shielding tube (13) and the second shielding tube (14), the first tube adhesive layer (15) fixing the first shielding tube to the second shielding tube (14). Furthermore, the object is solved by an exhaust gas temperature sensor arrangement (1), preferably comprising such a wire shielding (9), and a method for assembling the exhaust gas temperature sensor arrangement (1).

Dual wavelength distributed temperature sensing with built-in fiber integrity monitoring
11860041 · 2024-01-02 · ·

In some examples, a temperature distribution sensor may include a laser source to emit a laser beam that is tunable to a first wavelength and a second wavelength for injection into a device under test (DUT). A first wavelength optical receiver may convert a return signal corresponding to the first wavelength with respect to Rayleigh backscatter or Raman backscatter Anti-Stokes. A second wavelength optical receiver may convert the return signal corresponding to the second wavelength with respect to Rayleigh backscatter or Raman backscatter Stokes. Bending loss associated with the DUT may be determined by utilizing the Rayleigh backscatter signal corresponding to the first wavelength and the Rayleigh backscatter signal corresponding to the second wavelength. Further, temperature distribution associated with the DUT may be determined by utilizing the Raman backscatter Anti-Stokes signal corresponding to the first wavelength and the Raman backscatter Stokes signal corresponding to the second wavelength.

Dual wavelength distributed temperature sensing with built-in fiber integrity monitoring
11860041 · 2024-01-02 · ·

In some examples, a temperature distribution sensor may include a laser source to emit a laser beam that is tunable to a first wavelength and a second wavelength for injection into a device under test (DUT). A first wavelength optical receiver may convert a return signal corresponding to the first wavelength with respect to Rayleigh backscatter or Raman backscatter Anti-Stokes. A second wavelength optical receiver may convert the return signal corresponding to the second wavelength with respect to Rayleigh backscatter or Raman backscatter Stokes. Bending loss associated with the DUT may be determined by utilizing the Rayleigh backscatter signal corresponding to the first wavelength and the Rayleigh backscatter signal corresponding to the second wavelength. Further, temperature distribution associated with the DUT may be determined by utilizing the Raman backscatter Anti-Stokes signal corresponding to the first wavelength and the Raman backscatter Stokes signal corresponding to the second wavelength.

Test system of thermoelectric module and test method for thermoelectric module
10900918 · 2021-01-26 · ·

A test system and method for thermoelectric module. The test system includes an electrical performance test unit, a heat flux detection unit, and a processor. The electrical performance test unit connects with the thermoelectric module under power generation state to test output power of the thermoelectric module and working current and internal resistance under this output power. The heat flux detection unit includes a heat flux sensor installed at a cold-end of the thermoelectric module to detect the heat flux. The processor electrically connects with the electrical performance test unit and the heat flux detection unit to calculate the thermoelectric conversion efficiency of thermoelectric module. By using the technical scheme of the invention, the detection of the thermoelectric conversion efficiency of the thermoelectric module is accomplished.

Method for spatially-localized gas-phase temperature measurements through ceramic materials

A method of measuring a temperature of a thermally-insulated, high temperature system. The method includes directing a first electromagnetic energy into the high temperature system so that the first electromagnetic energy may cause multi-photon ionization of a molecular or atomic species within the high temperature system. A second electromagnetic energy resulting from the multi-photon ionization is detected through a thermally-insulating wall of the high temperature system. The detected second electromagnetic energy is related to a temperature within the high temperature system.

Sensor insert

A sensor insert for positioning a temperature sensor within a glycol bottle. The sensor insert may be transparent and in the general shape of a tube, and is adapted for insertion in a bottle having an upper opening and a bottom. The sensor insert can also comprise an insert body having a first end, a second end and an inner surface. The insert body may be tapered from the first end toward the second end, for easy insertion into the bottle. The sensor insert can hold a temperature sensor away from the bottom and sides of the bottle to enable more accurate temperature readings. The insert also allows fluid within the bottle to be in contact with the temperature sensor due to fluid openings in the insert body.