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公开(公告)号：US20230375412A1
公开(公告)日：2023-11-23
申请号：US18031217
申请日：2021-10-15
Applicant: ArcelorMittal
Inventor： Gwenaël LE NOC , Morgan FERTE
CPC classification number: G01J5/0022 , G01B21/08 , G01J5/026 , G01J5/602 , G01J5/802
Abstract: A method for estimating the oxide thickness and the temperature of a heated steel strip, undergoing a heat treatment performed at a temperature from 100° C. to 1100° C., including the steps of 1. measuring at least two radiation intensities at different wavelengths, in a range from 1 to 5 μm, emitted by the heated steel strip, 2. estimating the temperature of the heated steel strip, TESTIMATED, based on the at least two measured radiation intensities and a reference radiation intensity for at least a reference wavelength, emitted by a reference steel strip having a determined oxide layer thickness, estimating the emissivity coefficient of the heated steel strip, εESTIMATED, using at least one of the measured radiation intensities and the estimated temperature, TESTIMATED, 4. estimating the oxide thickness, OxESTIMATED, of the heated steel strip using the estimated emissivity, εESTIMATED.
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公开(公告)号：US20240328864A1
公开(公告)日：2024-10-03
申请号：US18739783
申请日：2024-06-11
Applicant: Syght, Inc.
Inventor： Charles Partee
CPC classification number: G01J5/53 , G01J5/026 , G01J5/041 , G01V8/005 , H04N5/33 , G01J2005/0077 , G01J5/48 , G01J5/802
Abstract: The disclosed MMW wave sensing camera calibration arrangement that generally includes a millimeter wave camera that uses an energy emission calibration panel as a calibration standard. The MMW camera is positioned opposite the calibration panel in the MMW camera's field-of-view. The calibration panel is held at a constant temperature to provide a standard emission of millimeter waves that is sensed by an MMW sensor to set or otherwise calibrate the MMW camera to a baseline emissivity value corresponding to the panel. The MMW camera is linked to a microprocessor and non-transient computer memory containing a calibration routine that is configured to reset the baseline only when nothing obstructs the calibration panel's field-of-view. A visual display is linked to the MMW camera and configured to display an MMW signature of a metal object that is disposed on a person's body when the person's body is in the field-of-view, the metal object concealed by clothing worn over the person's body.
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Patent Agency Ranking
公开(公告)号：US20240118139A1
公开(公告)日：2024-04-11
申请号：US18265806
申请日：2021-12-08
Applicant: ArcelorMittal
Inventor： Noëlle MICQUE , Gwenaël LE NOC , Morgan FERTE
CPC classification number: G01J5/0003 , G01J5/0022 , G01J5/10 , G01J5/52 , G01J5/802 , G01J2005/0029 , G01J2005/0074
Abstract: A method for estimating the temperature of a steel product including a calibration step wherein the intensities at 5 wavelengths ranging from 0.9 to 2.1 μm are recorded for several measurement condition and spectral attenuation coefficients are computed, a measurement step wherein the intensities at said 5 wavelengths are recorded and spectral attenuation coefficients are computed for several temperatures and a comparison step wherein a probability test is performed to estimate the steel product temperature.
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公开(公告)号：US20240337538A1
公开(公告)日：2024-10-10
申请号：US18036396
申请日：2022-11-17
Applicant: China University of Mining and Technology
Inventor： Huaichun ZHOU , Kuangyu LI , Bo YU , Xianyong PENG , Han GUO , Kun YANG , Zhuoran JING
CPC classification number: G01J5/485 , G01J5/0044 , G01J5/0802 , G01J5/0887 , G01J5/10 , G01J5/602 , G01J5/802 , G01J5/804 , G01J2005/0074 , G01J2005/0077 , G01J2005/604 , G01J2005/607
Abstract: Disclosed in the present invention is a visual monitoring method for cross-section temperature fields and radiation characteristics of boiler furnaces by combining radiation images and spectra. Image detectors can be directly inserted into observation holes of a boiler to acquire flame image data, so that when the detection system is applied to a power station boiler, extra holes are not required to be drilled, and therefore, there is no risk that the strength of a furnace wall of the boiler is reduced by drilling holes. According to cross-section temperature fields of a furnace measured by the detection system, the state of combustion in the furnace can be accurately judged, which can play an accurate and effective guiding role in boiler combustion control, and reduce the temperature deviation in each combustion area of the boiler so as to keep the boiler running smoothly, thereby improving the combustion efficiency of the boiler.
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公开(公告)号：US12050136B2
公开(公告)日：2024-07-30
申请号：US17203295
申请日：2021-03-16
Applicant: Charles Partee
Inventor： Charles Partee
CPC classification number: G01J5/53 , G01J5/026 , G01J5/041 , G01V8/005 , H04N5/33 , G01J2005/0077 , G01J5/48 , G01J5/802
Abstract: The disclosed MMW wave sensing camera calibration arrangement that generally includes a millimeter wave camera that uses an energy emission calibration panel as a calibration standard. The MMW camera is positioned opposite the calibration panel in the MMW camera's field-of-view. The calibration panel is held at a constant temperature to provide a standard emission of millimeter waves that is sensed by an MMW sensor to set or otherwise calibrate the MMW camera to a baseline emissivity value corresponding to the panel. The MMW camera is linked to a microprocessor and non-transient computer memory containing a calibration routine that is configured to reset the baseline only when nothing obstructs the calibration panel's field-of-view. A visual display is linked to the MMW camera and configured to display an MMW signature of a metal object that is disposed on a person's body when the person's body is in the field-of-view, the metal object concealed by clothing worn over the person's body.
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公开(公告)号：US11913839B2
公开(公告)日：2024-02-27
申请号：US16876725
申请日：2020-05-18
Inventor： Samantha Taylor , Eric Christopher Forrest
CPC classification number: G01J5/00 , B22F10/00 , B33Y10/00 , B33Y30/00 , B33Y50/02 , G01J5/802 , B22F10/10 , G01J2005/0077
Abstract: Embodiments of the present disclosure provide an improved method and apparatus for thermal monitoring for a metal additive manufacturing system. An emissivity value of a top surface of an object to be manufactured is determined based, at least in part, on an arithmetic product of a predetermined roughness value and a predetermined slope-related value. The predetermined roughness value and slope-related values are predetermined based, at least in part, on measurements of a previously manufactured object. The system sinters a metal to form the top surface of the object to be manufactured. An infrared sensor detects radiation from at least a portion of the top surface of the object to be manufactured. A temperature is generated based, at least in part, on the detected infrared radiation and the emissivity value and the generated temperature is applied to a temperature utilization component of the system.
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公开(公告)号：US11835390B2
公开(公告)日：2023-12-05
申请号：US17230498
申请日：2021-04-14
Applicant: Alfonso Torres-Rua
Inventor： Alfonso Torres-Rua
CPC classification number: G01J5/007 , B64C39/024 , G06T5/005 , G06T7/40 , G06V20/188 , H04N23/11 , B64U2101/30 , G01J5/802 , G01J2005/0077 , G06T2207/10036 , G06T2207/10048
Abstract: A technology is described for spatially estimating thermal emissivity. A method can include obtaining spectral emissivity data and satellite imaging data for a geographic area. A weighted emissivity model of emissivity values may be generated for surfaces included in the geographic area from the spectral emissivity data and the satellite imaging data, wherein the spectral emissivity data is mapped to the satellite imaging data to generate the weighted emissivity model. Thermal imaging data for the geographic area may be received from an airborne thermal imaging sensor and a thermal emissivity map can be generated for the geographic area using the thermal imaging data and the weighted emissivity model. The emissivity values from the weighted emissivity model can be used to estimate thermal emissivity values.
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