公开(公告)号：US20230417657A1

公开(公告)日：2023-12-28

申请号：US18253705

申请日：2021-12-01

Applicant: trinamiX GmbH

Inventor： Celal Mohan OEGUEN ,  Sourabh KULKARNI ,  Florian PROELL

IPC: G01N21/31

CPC classification number: G01N21/31 ,  G01N2201/127

Abstract: Described herein is a spectral sensing device that includes



at least one photosensitive detector, where the at least one photosensitive detector has at least one photosensitive region designated for receiving optical radiation, where at least one detector signal as generated by the at least one photosensitive detector is dependent on an illumination of the at least one photosensitive region;
at least one radiation emitting element;
at least one optical element; and
at least one evaluation unit, where the at least one evaluation unit is configured to perform a calibration of the spectral sensing device by using at least one first detector signal as generated by the at least one photosensitive detector upon the illumination of the at least one photosensitive region by a first portion of the optical radiation. Also described herein is a method for measuring optical radiation with a spectral sensing device.

公开(公告)号：US20230408402A1

公开(公告)日：2023-12-21

申请号：US18207189

申请日：2023-06-08

Applicant: Carl Zeiss Spectroscopy GmbH

Inventor： Peter Westphal ,  Daniel Bublitz ,  Karsten Lindig

IPC: G01N21/31

CPC classification number: G01N21/31 ,  G01N2201/127

Abstract: A measurement device for spectroscopic constituent analysis includes a control unit, a light source, a sample holder arranged in the beam path of the light source, and a spectral measurement module. The measurement module comprises at least one photosensor with organic photodiodes arranged on a substrate and a temperature sensor arranged at the photosensor. During a sample measurement, a method using the measurement device comprises: detecting an actual temperature at the photosensor; pivoting-in a dark reference sample and measuring a dark reference value; pivoting-in a bright reference sample and measuring a bright reference value; measuring a spectral value of the sample and correcting the spectral value by means of a correction calculation by way of the control unit using the dark reference value, the bright reference value, the spectral value of the sample, the temperature and using values which were determined in a pre-calibration and stored in the control unit.

公开(公告)号：US11835459B2

公开(公告)日：2023-12-05

申请号：US15733745

申请日：2019-05-02

Applicant: Uster Technologies AG

Inventor： Peyman Dehkordi ,  Kent A. Rinehart ,  David D. McAlister, III

IPC: G01N21/64 ,  G01N21/55 ,  G01N33/36

CPC classification number: G01N21/6456 ,  G01N21/55 ,  G01N33/367 ,  G01N2021/6471 ,  G01N2201/062 ,  G01N2201/127

Abstract: An apparatus (100) for measuring not only the reflected radiation but also the fluorescence emission of a textile sample (106), which includes a presentation subsystem (102) having a viewing window (108). A radiation subsystem (114) has a tunable radiation source (120) for directing a desired radiation (122) having a wavelength range and an intensity through the viewing window (108) toward the sample (106), and thereby causing the sample (106) to produce a fluorescence (124). A sensing subsystem (126) has an imager (130) for capturing the reflected radiation and fluorescence (124) in an array of pixels. A control subsystem (132) has a processor (136) for controlling the presentation subsystem (102), the radiation subsystem (114), and the sensing subsystem (126), and creates a reflected radiation and fluorescence image containing both spectral information and spatial information in regard to the reflected radiation and fluorescence (124) of the sample (106).

公开(公告)号：US11815451B2

公开(公告)日：2023-11-14

申请号：US16316276

申请日：2017-06-27

Applicant: Cytiva Sweden AB

Inventor： Mikael Anders Hornqvist

IPC: G01N21/33 ,  G01N21/05 ,  G01N30/74 ,  G01N21/85 ,  G01N21/31 ,  G01N30/02

CPC classification number: G01N21/33 ,  G01N21/05 ,  G01N21/8507 ,  G01N30/74 ,  G01N2021/3125 ,  G01N2030/027 ,  G01N2201/0624 ,  G01N2201/0625 ,  G01N2201/0691 ,  G01N2201/127

Abstract: Disclosed is a method for measuring the absorbance of light of a substance in a solution in a measuring cell (23; 223′), said method comprising the steps of: transmitting (S1) a first light beam (27; 27′) from a light source (25; 25′) towards a beam splitter (29; 29′); dividing (S3) the first light beam (27; 27′) into a signal light ray (31; 31′) and a reference light ray (33; 33′) by the beam splitter (29; 29′); modulating (S5) the signal light ray (31; 31′); modulating the reference light ray (33; 33′); providing (S9) the measuring cell (23; 23′) such that the signal light ray (31; 31′) passes through the measuring cell; detecting (S11) a signal in a detector (39; 39′), which signal is the combined signal intensity of the signal light ray (31; 31′) and the reference light ray (33; 33′) detected by the detector (39; 39′); performing synchronous detection (S15) of the detected signal in order to reconstruct the intensities of the signal light ray (31; 31′) and the reference light ray (33; 33′) from the combined signal detected by the detector (39; 39′), said synchronous detection being based on the modulation performed to the signal light ray and the reference light ray. Disclosed also is a measuring device for carrying out said method.

公开(公告)号：US20230358668A1

公开(公告)日：2023-11-09

申请号：US18142867

申请日：2023-05-03

Applicant: GIMER MEDICAL. Co. LTD.

Inventor： Chi-Yu HUANG

IPC: G01N21/21 ,  A61B5/1459 ,  A61B5/1495

CPC classification number: G01N21/21 ,  A61B5/1459 ,  A61B5/1495 ,  G01N2201/127 ,  G01N2201/0636 ,  G01N2201/08 ,  A61B2562/0233 ,  G02B27/14

Abstract: An inspection device for inspecting an analyte in a liquid is provided, including a light source module, a first polarizing member, a second polarizing member, a sensing member, and a calibration assembly. The light source module provides a light, and the first polarizing member is disposed between the light source module and the second polarizing member. An accommodating space for accommodating the aforementioned liquid is formed between the first polarizing member and the second polarizing member. The second polarizing member is disposed between the first polarizing member and the sensing member. When the inspection device inspects the liquid, a portion of the light passes through the first polarizing member, the liquid, and the second polarizing member and reaches the sensing member, and another portion of the light enters the calibration assembly.

公开(公告)号：US20230273120A1

公开(公告)日：2023-08-31

申请号：US17682243

申请日：2022-02-28

Applicant: Saudi Arabian Oil Company

Inventor： Mohammad Alharthy ,  Osama Alzahrani ,  Nada Alghamdi ,  NagoorPitchal MeeranPillai ,  Ali Almuhaimeed

IPC: G01N21/33 ,  G01N33/18 ,  G01N1/40

CPC classification number: G01N21/33 ,  G01N33/1833 ,  G01N1/4077 ,  G01N2201/127 ,  G01N2001/4083 ,  G01N2201/12746

Abstract: A method for quantifying a crude oil in water is provided. The method includes selecting an ultraviolet/visible (UV/Vis) wavelength to perform a measurement, preparing calibration solutions in xylene, and preparing a calibration curve from the calibration solutions. A sample is prepared including extracting the crude oil from the water in a two-phase separation with xylene. An absorbance of the sample in the xylene is measured at the UV/Vis wavelength. A concentration of the crude oil in the water is calculated from the absorbance.

公开(公告)号：US20230251240A1

公开(公告)日：2023-08-10

申请号：US18003420

申请日：2020-07-01

Applicant: Chevron U.S.A. Inc.

Inventor： Eliza Mathia ,  Paul Montgomery ,  Kenneth Thomas Ratcliffe

IPC: G01N33/24 ,  G01N23/223 ,  G01N21/3563

CPC classification number: G01N33/24 ,  G01N23/223 ,  G01N21/3563 ,  G01N2201/127 ,  G01N2021/3595

Abstract: A method comprises determining an amount of excess silica and/or an amount of terrigenous silica in a rock sample taking into account a measurement indicative of an amount of silica in the rock sample and a measurement indicative of an amount of zirconium in the rock sample.

公开(公告)号：US20230236120A1

公开(公告)日：2023-07-27

申请号：US18022950

申请日：2021-08-30

Applicant: Senseair AB

Inventor： Yang YOU ,  Tobias OECHTERING ,  Henrik RÖDJEGÅRD

IPC: G01N21/3504

CPC classification number: G01N21/3504 ,  G01N2201/127

Abstract: A method for determining a measure of a gas concentration from a group of at least two non- dispersive infrared, NDIR, gas sensors (S1-SN) is described. The method comprises the steps of obtaining, at a processing unit (1), from each NDIR gas sensor (S1-SN) a measure of a gas concentration as a belief function Pi(x), which provides a probability as a function of the sensed light intensity at a specific wavelength, merging, in the processing unit, the belief functions Pi(x) to a merged belief function P(x). A computer program performing the method is also described.

公开(公告)号：US20230175963A1

公开(公告)日：2023-06-08

申请号：US17994434

申请日：2022-11-28

Applicant: LEICA MICROSYSTEMS CMS GMBH

Inventor： Benjamin DEISSLER ,  Christian SCHUMANN ,  Kai RITSCHEL ,  Mate BELJAN ,  Wernher FOUQUET ,  Gheorghe COJOC

IPC: G01N21/64

CPC classification number: G01N21/64 ,  G01N2201/127

Abstract: A method of analyzing a mixed fluorescence response of a plurality of fluorophores in a microscopic sample includes reconstructing individual fluorescence responses from a mixed fluorescence response using spectral un-mixing based on reference emission spectra for fluorophores to be reconstructed, and a procedure for determining and validating reference emission spectra including providing a plurality of image acquisition settings for a sequence of images of the sample equal to, or greater than, the plurality of fluorophores and including an illumination setting for each image, acquiring the sequence of images using the plurality of image acquisition settings and storing each image together with the corresponding illumination setting, determining candidate reference emission spectra for the fluorophores to be reconstructed from the sequence of images of the sample using one or more reference emission spectra determination algorithms, and conditionally using the candidate reference emission spectra as the reference emission spectra in the spectral un-mixing.

公开(公告)号：US20180356335A1

公开(公告)日：2018-12-13

申请号：US15617438

申请日：2017-06-08

Applicant: Rosemount Inc.

Inventor： Calin I. Ciobanu ,  Hoang M. Nguyen ,  Jung S. Hwang ,  Jeffrey L. Lomibao ,  Behzad Rezvani

IPC: G01N21/25 ,  G01N21/31

CPC classification number: G01N21/251 ,  G01N21/255 ,  G01N21/31 ,  G01N2201/127

Abstract: A colorimetric analyzer includes a reaction chamber configured to receive a sample and at least one reagent. A measurement cell is operably coupled to the reaction chamber. The colorimetric analyzer has an illumination source configured to emit illumination at a first wavelength during a first absorbance measurement and at a second wavelength during a second absorbance measurement. The colorimetric analyzer also includes an illumination detector spaced from the illumination source such that illumination from the illumination source passes through the measurement cell to the illumination detector. A controller is coupled to the illumination source and the illumination detector. The controller is configured to detect an obstruction of light between the illumination source and the illumination detector based on the first and the second absorbance measurements.