公开(公告)号：US20240094119A1

公开(公告)日：2024-03-21

申请号：US18128572

申请日：2023-03-30

Applicant: Continuus Materials Intellectual Property, LLC

Inventor： Brady Samuelson ,  Brian McQuerrey

IPC: G01N21/3563 ,  G01N21/359

CPC classification number: G01N21/3563 ,  G01N21/359 ,  G01N2201/127

Abstract: A method may include measuring, by an NIR device, a first near-infrared (NIR) spectrum at an edge of a composite panel formed using a blend of paper fragments and plastic fragments, measuring, by the NIR device, a second NIR spectrum at the edge of the composite panel, aggregating, by a controller of the NIR device, the first and second spectra to obtain an aggregated spectrum, and comparing the aggregated spectrum to calibration data to determine a plastic composition of the composite panel.

公开(公告)号：US20240085314A1

公开(公告)日：2024-03-14

申请号：US18262361

申请日：2022-01-19

Applicant: ELICHENS

Inventor： Pierre Jallon

IPC: G01N21/31 ,  G01N33/00

CPC classification number: G01N21/31 ,  G01N33/0006 ,  G01N2201/127

Abstract: In a method for calibrating a gas sensor—for determining a gaseous species concentration in a gas, which species absorbs light in an absorption spectral band—the gas sensor includes a chamber for containing the gas; a light source through which a supply electrical current is passable to raise the light source to a temperature; a measurement photodetector for measuring—in a measurement spectral band comprising the absorption spectral band—a measured intensity of a light beam emitted by the light source and transmitted by the gas in the chamber; and a reference photodetector for measuring a reference intensity of a reference light beam emitted by the light source in a reference spectral band. A non-linear calibration function is determined to estimate an intensity, measured in the measurement spectral band by the measurement photodetector in the absence of gaseous species, from a reference intensity measured in the reference spectral band.

公开(公告)号：US11885739B2

公开(公告)日：2024-01-30

申请号：US17988239

申请日：2022-11-16

Applicant: MARATHON PETROLEUM COMPANY LP

Inventor： Roy Roger Bledsoe, Jr. ,  Lance T. Campbell ,  Randy N. Ridge ,  Brian K. Wilt

IPC: G01N21/31 ,  G01J3/28

CPC classification number: G01N21/31 ,  G01J3/28 ,  G01J2003/2866 ,  G01N2201/127

Abstract: Methods and assemblies may be used for determining and using standardized spectral responses for calibration of spectroscopic analyzers. The methods and assemblies may be used to calibrate or recalibrate a spectroscopic analyzer when the spectroscopic analyzer changes from a first state to a second state, the second state being defined as a period of time after a change to the spectroscopic analyzer causing a need to calibrate or recalibrate the spectroscopic analyzer. The calibration or recalibration may result in the spectroscopic analyzer outputting a standardized spectrum, such that the spectroscopic analyzer outputs a corrected material spectrum for an analyzed material, and defining the standardized spectrum. The corrected material spectrum may include signals indicative of material properties of an analyzed material, the material properties of the material being substantially consistent with material properties of the material output by the spectroscopic analyzer in the first state.

公开(公告)号：US20230417666A1

公开(公告)日：2023-12-28

申请号：US18464598

申请日：2023-09-11

Applicant: Carrier Corporation

Inventor： Urcan Guler ,  David L. Lincoln

IPC: G01N21/53 ,  G01N21/05

CPC classification number: G01N21/53 ,  G01N21/05 ,  G01N2201/127

Abstract: A method of calibrating an optical detector includes installing a calibration system within at least one sensing volume of the optical detector, filling a chamber of the calibration system with a material to achieve a known obscuration, and measuring an obscuration of the material within the chamber.

公开(公告)号：US20230401405A1

公开(公告)日：2023-12-14

申请号：US18320539

申请日：2023-05-19

Applicant: Rie Suzuki ,  Tatsuya Ishii

Inventor： Rie Suzuki ,  Tatsuya Ishii

IPC: G06K15/02 ,  G01N21/25 ,  B41J2/21 ,  G03G15/01

CPC classification number: G06K15/027 ,  G01N21/251 ,  B41J2/2103 ,  G03G15/0105 ,  G01N2201/127

Abstract: A colorimetric device includes: a white reference portion having: a first irradiation area; and a second irradiation area different from the first irradiation area; a light emitter including: a first light source configured to emit visible light to the first irradiation area; and a second light source configured to emit ultraviolet light to the second irradiation area; a sensor configured to detect the visible light reflected from the first irradiation area and the ultraviolet light reflected from the second irradiation area; and a processor configured to: measure colorimetric information of an object; and calibrate the colorimetric information of the object based on the visible light and the ultraviolet light detected by the sensor.

公开(公告)号：US11692937B2

公开(公告)日：2023-07-04

申请号：US17269098

申请日：2019-08-09

Applicant: HITACHI HIGH-TECH CORPORATION

Inventor： Yohei Kawaguchi ,  George Chalkidis ,  Tomohiro Yasuda

IPC: G01N21/64

CPC classification number: G01N21/6408 ,  G01N21/6428 ,  G01N2021/6439 ,  G01N2201/127

Abstract: Provided are a spectral calibration apparatus and a spectral calibration method capable of performing spectral calibration with high accuracy even when peaks appear simultaneously between fluorescent dyes.
The spectral calibration apparatus for calculating a color conversion matrix used in color conversion processing, includes a spectral signal acquisition unit that acquires a spectral signal of fluorescence detected over time, a candidate calculation unit that calculates a candidate of the color conversion matrix for each value of a parameter, which depends on a frequency at which fluorescence peaks of fluorescent dyes appear at the same time, based on the spectral signal, and a selection unit that selects a color conversion matrix based on an evaluation value calculated for each candidate.

公开(公告)号：US20230194346A1

公开(公告)日：2023-06-22

申请号：US18084249

申请日：2022-12-19

Applicant: THERMO ELECTRON SCIENTIFIC INSTRUMENTS LLC

Inventor： Alexander GRENOV ,  Min Yan ,  Mike Bradley

IPC: G01J3/28 ,  G01J3/02 ,  G01N21/359

CPC classification number: G01J3/2823 ,  G01J3/0237 ,  G01N21/359 ,  G01N2201/127 ,  G01N2021/3595

Abstract: Methods and systems for automatically adjusting a sample position in a spectrometer, such as a Fourier-transform infrared (FTIR) spectrometer, are described. The sample may be automatically positioned using an auto-focusing procedure. For example, images including an aperture marker are acquired by directing light towards the sample via an aperture. The sample position may be adjusted based on features extracted from the aperture marker images.

公开(公告)号：US11668647B2

公开(公告)日：2023-06-06

申请号：US17647984

申请日：2022-01-14

Applicant: Siemens Healthcare Diagnostics Inc.

Inventor： Jeffrey R. Jasperse

IPC: G01N21/25 ,  G01N21/31 ,  G01N33/49

CPC classification number: G01N21/255 ,  G01N21/31 ,  G01N33/491 ,  G01N2201/061 ,  G01N2201/062 ,  G01N2201/0636 ,  G01N2201/127

Abstract: An illumination unit is described that includes a first light source positioned on a first axis and a second light source on a second axis that intersects and is angularly offset with respect to the first axis. The illumination unit includes a reflector having an aperture through which the first axis extends and a reflective surface angled with respect to the first axis and second axis.

公开(公告)号：US20230168186A1

公开(公告)日：2023-06-01

申请号：US18070022

申请日：2022-11-28

Applicant: CORNING INCORPORATED

Inventor： Rostislav Vatchev Roussev ,  Nathaniel David Wetmore

IPC: G01N21/31

CPC classification number: G01N21/31 ,  G01N2201/127 ,  G01N2201/0634

Abstract: Methods and apparatus for obtaining a corrected digital mode spectrum for a chemically strengthened (CS) substrate having a curved surface are disclosed. The methods include digitally capturing transverse magnetic (TM) and transverse electric (TE) mode spectra of the CS substrate to form a digital mode spectrum image using an evanescent prism coupling system having a system calibration for measuring flat CS substrates. The method further includes establishing a calibration correction based on the difference in the digitally captured TM and TE mode spectra as compared to a reference TM and TE mode spectra for a reference CS substrate. The calibration correction is applied to the digital mode spectrum image to form the corrected digital mode spectrum image, which can be processed using the system calibration for measuring flat CS substrates to determine a refractive index profile and stress characteristics for the curved CS substrate.

公开(公告)号：US20180209903A1

公开(公告)日：2018-07-26

申请号：US15880033

申请日：2018-01-25

Applicant: Noel Dean Putaansuu

Inventor： Noel Dean Putaansuu

IPC: G01N21/53 ,  F24B1/187 ,  F24B1/189 ,  F24B1/19 ,  G01K7/02

CPC classification number: G01N21/534 ,  F24B1/028 ,  F24B1/187 ,  F24B1/1895 ,  F24B1/19 ,  G01K7/02 ,  G01K13/00 ,  G01N2021/536 ,  G01N2201/127

Abstract: A wood stove monitoring and control device can include a mounting flange mountable to a chimney exhaust pipe of a wood stove. The device can include a ring removably mountable on top of the mounting flange, where the flange is suitably positioned vertically along the exhaust pipe so that the ring is positioned at least partially above an end of the exhaust pipe. The device includes an optical beam source disposed on the ring, and which generates and outputs an optical beam. The device includes an optical sensor positioned on the ring opposite the optical beam source to detect the optical beam output by the optical beam source as the optical beam passes through smoke exhausted by the wood stove through the exhaust pipe. The device can include a temperature probe disposed on the ring to measure a temperature of heat exhausted by the wood stove through the exhaust pipe.