公开(公告)号：US4054390A

公开(公告)日：1977-10-18

申请号：US686029

申请日：1976-05-13

Applicant: Carl-Roland Rabl

Inventor： Carl-Roland Rabl

IPC: G01N21/03 ,  G01N21/27 ,  G01N21/59 ,  G01N21/64 ,  G01N21/24

CPC classification number: G01N21/6445 ,  G01N21/272 ,  G01N21/645 ,  G01N2021/0389 ,  G01N2021/0392 ,  G01N2021/1738 ,  G01N2021/6491 ,  G01N21/0332 ,  G01N21/59 ,  G01N2201/1226 ,  G01N2201/127

Abstract: An apparatus for investigating the course of fast chemical reactions, which are initiated in a liquid chemical system under investigation by an external perturbation, e.g. a steep temperature rise (temperature jump). The apparatus comprises first and second light paths conveying a probing light beam and a sense light beam, respectively, and an optical system of extremely high aperture which allows a wide variety of types of measurements, including absorption, fluorescence, fluorescence polarization, and the like with a high signal-to-noise ratio even if small sample concentrations are used.

Abstract translation: 一种用于调查快速化学反应过程的装置，其在通过外部扰动研究的液体化学系统中开始，例如， 温度升高（温度上升）。 该装置包括分别传送探测光束和感测光束的第一和第二光路以及极高孔径的光学系统，其允许多种类型的测量，包括吸收，荧光，荧光偏振等 即使使用小的样品浓度，也具有高的信噪比。

公开(公告)号：US20240264078A1

公开(公告)日：2024-08-08

申请号：US18569746

申请日：2022-06-17

Applicant: REPSOL, S.A.

Inventor： MIGUEL RUBIO MORENO ,  FRANCISCO JAVIER CARVAJAL GONZÁLEZ ,  SONIA SEGURA FERNÁNDEZ ,  ENRIQUE DOMÍNGUEZ RAMOS

IPC: G01N21/3563 ,  B07C5/342 ,  B29B17/02 ,  B29K75/00 ,  B29K105/04 ,  B29K105/06

CPC classification number: G01N21/3563 ,  B07C5/342 ,  B29B17/02 ,  B29B2017/0203 ,  B29B2017/0279 ,  B29K2075/00 ,  B29K2105/04 ,  B29K2105/065 ,  G01N2201/127 ,  G01N2201/129

Abstract: A method for sorting flexible polyurethane foams including: a) providing two or more calibration samples of conventional flexible polyurethane foams, two or more calibration samples of high resilience (HR) flexible polyurethane foams, and two or more calibration samples of viscoelastic flexible polyurethane foams, and obtaining a mid-infrared (MIR) spectrum of each calibration sample; b) carrying out a spectral pre-processing of the spectra of all the calibration samples and, then a first PCA to define a first library; c) carrying out a spectral pre-processing of the infrared spectra of conventional and HR calibration samples and, then a second PCA to define a second library; d) obtaining the MIR spectrum of a sample of polyurethane foam and, based on the first and second libraries, classifying the sample of polyurethane foam as a conventional, HR or viscoelastic polyurethane foam, or as a foam that is neither a conventional, a HR or a viscoelastic polyurethane foam.

公开(公告)号：US11986295B1

公开(公告)日：2024-05-21

申请号：US18455492

申请日：2023-08-24

Applicant: Apollon Inc.

Inventor： Miyeon Jue ,  Young Kyu Kim ,  Aram Hong

IPC: A61B5/1455 ,  A61B5/00 ,  A61B5/145 ,  G01N21/65 ,  G01N33/49

CPC classification number: A61B5/14532 ,  A61B5/0002 ,  A61B5/1455 ,  G01N21/65 ,  G01N33/49 ,  A61B5/6801 ,  G01N2201/061 ,  G01N2201/127

Abstract: Disclosed is a blood glucose level measuring apparatus utilizing a Raman spectrum includes a housing defining an interior accommodation space, a light source part disposed in the housing, and that irradiates light to a subject, a light receiving part disposed in the housing, and that receives the reflected and scattered light from the subject and acquires a Raman spectrum, and a processor disposed in the housing, and that extracts information on glucose, proteins, and fats of the subject by utilizing an area of a peak included in the Raman spectrum. The processor performs a calibration by controlling the light source part and the light receiving part when the blood glucose level measuring apparatus starts to be driven or is mounted on a body of a user.

公开(公告)号：US11975988B2

公开(公告)日：2024-05-07

申请号：US16963125

申请日：2019-01-17

Applicant: THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO

Inventor： Ronald Hofmann ,  Chengjin Wang ,  Erik Rosenfeldt

IPC: C02F1/32 ,  C02F1/00 ,  C02F1/72 ,  G01N21/31 ,  G01N21/85 ,  G01N31/22 ,  G01N33/18

CPC classification number: C02F1/008 ,  C02F1/32 ,  C02F1/722 ,  G01N21/31 ,  G01N21/85 ,  G01N31/22 ,  G01N33/1893 ,  C02F2305/023 ,  G01N2201/127

Abstract: The determination of hydroxyl radical scavenging capacity of contaminated water can be achieved by developing an external calibration model. The model can be prepared using standard solutions where scavenging capacities are determined, and then the solutions are treated with addition of an oxidant and a dye, followed by UV treatment to form hydroxyl radicals that are scavenged by species in the standard solution. The residual dye content can then be measured using absorbance. The absorbance and the scavenging capacity data for the standard solutions are used to build the model, which can then be implemented to determine scavenging capacity of contaminated water. Water samples can be subjected to the same treatment as the standard solutions, the absorbance of the water sample is then obtained, and then the model is used to determine the corresponding scavenging capacity. Determining scavenger capacity of contaminated water can aid in advanced oxidation processing (AOP).

公开(公告)号：US11879840B2

公开(公告)日：2024-01-23

申请号：US15734120

申请日：2019-11-27

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：US11860069B2

公开(公告)日：2024-01-02

申请号：US17988210

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：US20230417660A1

公开(公告)日：2023-12-28

申请号：US18039316

申请日：2021-11-22

Applicant: HORIBA STEC, Co., Ltd. ,  HORIBA, LTD.

Inventor： Yuhei SAKAGUCHI ,  Masakazu MINAMI ,  Kyoji SHIBUYA ,  Motonobu TAKAHASHI

IPC: G01N21/3504 ,  G01N21/03 ,  G01N21/39

CPC classification number: G01N21/3504 ,  G01N21/0332 ,  G01N21/39 ,  G01N2201/127

Abstract: The present invention is a gas analysis device that measures a concentration or partial pressure of a halide contained in a material gas used in semiconductor manufacturing process or a by-product gas generated in semiconductor manufacturing process with good accuracy, the device being for analyzing a concentration or partial pressure of a halide contained in a material gas used in a semiconductor manufacturing process or a by-product gas generated in a semiconductor manufacturing process, the device including a gas cell into which the material gas or the by-product gas is introduced, a laser light source that irradiates the gas cell with laser light whose wavelength is modulated, a light detector that detects the laser light transmitted through the gas cell, and a signal processing unit that calculates the concentration or partial pressure of the halide by using a light absorption signal obtained from an output signal of the light detector.

公开(公告)号：US20230304935A1

公开(公告)日：2023-09-28

申请号：US18015007

申请日：2021-06-24

Applicant: Agilent Technologies LDA UK Limited

Inventor： Pavel Matousek ,  Julia Griffen ,  Andrew Owen ,  Lee Dowden

IPC: G01N21/65 ,  G01N33/15 ,  G01N21/95

CPC classification number: G01N21/65 ,  G01N21/9508 ,  G01N33/15 ,  G01N2201/127

Abstract: Methods and apparatus (10) for Raman spectral analysis of a sample (12), such as a pharmaceutical dosage form, are disclosed. Delivery optics (16) are used to deliver probe light to a delivery region (13) on the sample, and collection optics (20) are used to collect, from a collection region (17) on the sample spaced from the delivery region, the probe light following scattering through the sample. Each of a plurality of target Raman spectral features are measured in the collected light, and a spectral distortion of the collected light arising during scattering through the sample is determined. A property of the sample is then quantified using the target Raman spectral features in combination with the determined spectral distortion, such that the quantified property is compensated for the spectral distortion.

公开(公告)号：US20230304925A1

公开(公告)日：2023-09-28

申请号：US17705095

申请日：2022-03-25

Applicant: TruTag Technologies, Inc.

Inventor： Guocai Shu ,  Alexandre Fong

IPC: G01N21/35

CPC classification number: G01N21/35 ,  G01N2201/127

Abstract: A system includes a tunable Fabry-Perot etalon, a detector, and a processor. The tunable Fabry-Perot etalon has a settable gap. The detector measures light intensity transmitted through the tunable Fabry-Perot etalon. The processor is configured to determine the calibrated spectral measurement, wherein the calibrated spectral measurement is based at least in part on a measurement set of detected light intensities for a selected set of settable gaps and a reconstruction matrix. The reconstruction matrix is based at least in part on calibration measurements using one or more field material targets, prior stored full calibrations for each of the one or more field material targets, and the selected set of settable gaps.

公开(公告)号：US20230288340A1

公开(公告)日：2023-09-14

申请号：US17386723

申请日：2021-07-28

Applicant: Harry Owen

Inventor： Harry Owen

IPC: G01N21/65

CPC classification number: G01N21/65 ,  G01N2201/127 ,  G01N2201/06113

Abstract: A Raman calibration standard incorporated within an optical Raman sampling accessory facilitates wavelength calibration in real time. The accessory may be a microscope objective, immersion probe, non-contact probe optic or flow cell utilizing laser light from the UV to the NIR, and the calibration standard material may comprise calcium fluoride, sapphire, diamond, magnesium fluoride or silicon. The calibration standard material may be disposed in a collimated light space within the accessory, and/or may function as a lens, sealed window, reflector or a combination thereof. A plurality of calibration standard materials may be incorporated into the accessory and used for independent calibration verification. The accessory may include a single lens or an achromatic focusing lens. The system may further include features to improve curve fitting and generate a more precise wavenumber value for the position of a reference Raman band generated by the calibration standard material.