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公开(公告)号：US10591427B2
公开(公告)日：2020-03-17
申请号：US16406478
申请日：2019-05-08
发明人： Tomonori Nakamura , Nobuyuki Hirai
IPC分类号： G01N25/72 , G01N17/00 , G01J5/00 , G01R31/265 , G01R31/02 , G01R31/311
摘要： A heat source position inside a measurement object is identified with high accuracy by improving time resolution.An analysis system according to the present invention is an analysis system that identifies a heat source position inside a measurement object, and includes a condition setting unit that sets a measurement point for one surface of the measurement object, a tester that applies a stimulation signal to the measurement object, a light source that irradiates the measurement point of the measurement object with light, a photo detector that detects light reflected from a predetermined measurement point on the surface of the measurement object according to the irradiation of light and outputs a detection signal, and an analysis unit that derives a distance from the measurement point to the heat source position based on the detection signal and the stimulation signal and identifies the heat source position.
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公开(公告)号：US10571415B2
公开(公告)日：2020-02-25
申请号：US15652910
申请日：2017-07-18
发明人： Jun Shi
摘要： Methods and apparatuses for evaluating ceramic matrix composite components are provided. In one example, a method for evaluating a ceramic matrix composite (CMC) component includes applying an electrical voltage to the CMC component at conditions to heat and cause a temperature increase in at least a portion of the CMC component. The temperature increase is sensed for detecting a presence of a defect in the CMC component.
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公开(公告)号：US10539380B2
公开(公告)日：2020-01-21
申请号：US15473961
申请日：2017-03-30
发明人： Paul Phillips
摘要： A method for thermographic analysis of a heat exchanger comprises: applying vibrations to the heat exchanger as a part of a vibration testing process; capturing a thermographic image of at least a portion of the heat exchanger whilst the heat exchanger is undergoing vibrations; analysing the thermographic image; and determining a status of the heat exchanger based on the analysis of the image.
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公开(公告)号：US20190353605A1
公开(公告)日：2019-11-21
申请号：US16524308
申请日：2019-07-29
申请人： Caterpillar Inc.
摘要： A method for detecting status information about a track pin of a track chain for heavy equipment includes disposing a track pin sensor within a void of the track pin; sensing with the track pin sensor a temperature characteristic of the track pin; determining status information based on the temperature characteristic; and wirelessly communicating the status information to a remote device. A method for detecting status information about a mechanical system that generates heat energy includes generating electrical energy based on the heat energy; providing the electrical energy to a control unit; sensing with the control unit a temperature characteristic of the mechanical system based on a voltage of the electrical energy; determining status information of the mechanical system based on the temperature characteristic; and wirelessly communicating the status information to a remote device.
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45.发明授权公开(公告)号：US10473603B2
公开(公告)日：2019-11-12
申请号：US15490578
申请日：2017-04-18
摘要： 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.
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公开(公告)号：US10473009B2
公开(公告)日：2019-11-12
申请号：US15874024
申请日：2018-01-18
IPC分类号： F01M11/00 , F01M11/12 , G01N25/72 , G01N33/28 , G01F23/00 , G07C5/00 , G01K13/02 , F01M11/10
摘要： Systems and methods are described for predicting a remaining oil life in an engine of a vehicle. One or more parameters of the engine can be monitored over a period of time. A hot compartment temperature can be determined from the parameter. A condition of the oil can be determined based on the hot compartment temperature, and the condition of the oil can be displayed.
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公开(公告)号：US10444173B2
公开(公告)日：2019-10-15
申请号：US15216221
申请日：2016-07-21
申请人： Leonardo S.p.A.
发明人： Giacomo Maione , Ciro Incarnato , Antonio Ciliberto , Umberto Galietti , Davide Palumbo , Gianpiero Cerrone
摘要： A thermographic non-destructive inspection method of a structure, comprising the steps of: generating a modulated thermal wave in the direction of the structure; generating a temperature signal identifying a phase shift between the modulated thermal wave and a return thermal wave emitted from the structure; processing the temperature signal to obtain a first sub-signal related to the phase of the first harmonic of the temperature signal; identifying a first dimension of said defect as a function of the phase of the first harmonic of the temperature signal; calculating a first and a second intermediate parameter by calculating the difference between the phase value inside the zone with a defect and the phase value, absolute or mean of a plurality of points, of the undamaged zone close to the defect; and identifying a second dimension of the defect as a function of the first dimension and of the intermediate parameters.
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公开(公告)号：US20190291897A1
公开(公告)日：2019-09-26
申请号：US15927777
申请日：2018-03-21
摘要： In accordance with at least one aspect of this disclosure, a structure can include a body, and one or more thermal sheet sensors disposed on or within the body. The one or more thermal sheet sensors can be configured to receive heat from the body to allow sensing of thermal flux through the body to monitor and/or determine a condition of the structure.
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公开(公告)号：US20190265178A1
公开(公告)日：2019-08-29
申请号：US15904966
申请日：2018-02-26
摘要： A nondestructive multispectral vibrothermography inspection system includes a fixture to retain a component, an ultrasonic excitation source directed toward the component retained within the fixture, a laser Doppler vibrometer directed toward the component retained within the fixture, and a multispectral thermography system directed toward the component retained within the fixture. A method for nondestructive multispectral vibrothermography inspection of a component, includes generating ultrasonic excitations in a component over a broad range of frequencies; determining a spectral signature in the component from the excitations; comparing the spectral energy signature against database 270 of correlations between vibrational frequencies of a multiple of components and the spectral energy distribution thereof, and classifying the component based on the database data.
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公开(公告)号：US10371746B2
公开(公告)日：2019-08-06
申请号：US15402590
申请日：2017-01-10
发明人： Tomonori Nakamura
IPC分类号： H01L23/34 , G01R31/311 , G01N25/72
摘要： A heat generation point detection method comprises steps S01, S02 of applying a low frequency bias voltage to an integrated circuit S and acquiring a heat generation detection signal detected from the integrated circuit S in response thereto, steps S03, S04 of supplying a high frequency bias voltage to the integrated circuit S and acquiring a heat generation detection signal detected from the integrated circuit S in response thereto, steps S05 to S07 of detecting a phase shift between the low frequency bias voltage and the heat generation detection signal and a phase shift between the high frequency bias voltage and the heat generation detection signal, and a step S08 of calculating a change rate of the phase shift against a square root of the frequency of the bias voltage, based on those phase shifts, and acquiring depth information of a heat generation point from the change rate.
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