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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：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：US20220018767A1
公开(公告)日：2022-01-20
申请号：US17413820
申请日：2019-11-28
Applicant: ArcelorMittal
Inventor： Nathalie LABBE , Morgan FERTE
IPC: G01N21/55 , G01N21/84 , G01N21/3563 , G01N21/89
Abstract: A method and a measuring equipment of the degree of crystallinity of a polymer coating on a metallic substrate using a hyperspectral camera as well as representing or mapping the degree of crystallinity is provided. An equipment for online measurement of crystallinity of polymers, including at least one hyperspectral camera, at least one lighting source, a polymer layer deposited on a substrate and means to convey the substrate, the lighting source and the hyperspectral camera being set-up in specular reflection towards the polymer layer.
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