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1.发明公开公开(公告)号：US20240219298A1
公开(公告)日：2024-07-04
申请号：US18532680
申请日：2023-12-07
Applicant: Endress+Hauser Optical Analysis, Inc.
Inventor： Xiang Liu , Kuan-Ting Yeh , Chih-Husan Chang
CPC classification number: G01N21/3103 , G01N21/274
Abstract: A method of spectroscopic analysis includes: collecting a set of calibration spectra for calibration gas samples by scanning a sample range of wavelengths; calculating a first concentration of a target analyte and first concentrations of background components for each calibration spectrum using a multivariant algorithm; modeling an ideal concentration of the target analyte as a function of the first concentrations using a correlative model; collecting a field spectrum for an unknown field gas sample, wherein the field gas sample includes the target analyte and at least some of the background components; calculating a second concentration of the target analyte and second concentrations the background components for the field spectrum using the multivariant algorithm; correcting the second concentration of the target analyte using the correlative model and second concentrations of the background components; and determining a corrected target analyte concentration in the field gas sample based on the corrected second concentration.
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公开(公告)号：US20240151584A1
公开(公告)日：2024-05-09
申请号：US18053246
申请日：2022-11-07
Applicant: Endress+Hauser Optical Analysis, Inc.
Inventor： Nicholas Skriba , James Tedesco , Joseph Slater
CPC classification number: G01J3/4412 , G01N21/65 , G01N2021/0346
Abstract: Flowcells and Raman analysis systems provide improved signal collection dynamics through increased solid-angle geometries and improved numerical aperture for near-diffraction-limited performance. A combined excitation/collection beam passes through a first optical material, a sample conduit and a second optical material. A concave reflective aspheric surface focuses and re-collimates the combined beam to and from a region of the sample within the conduit. The optical materials may comprise separate windows or may integrally form sidewalls the conduit. The reflective surface may be spaced apart from the second window or may be integrally formed with the second optical material. The focused region in the sample may approximate a point or a line, and at least a portion of the interior wall of the conduit may be reflective, causing the combined beam to pass through the sample region more than once to enhance collection efficiency.
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公开(公告)号：US11940464B2
公开(公告)日：2024-03-26
申请号：US17431850
申请日：2020-02-14
Applicant: Kaiser Optical Systems Inc.
Inventor： Carsten Uerpmann , Michael Gordon Stidham
CPC classification number: G01R1/06755 , G01N21/65
Abstract: One aspect of the present disclosure discloses a probe, including a probe body having a center axis defining a proximal end and a distal end and including an aperture in the distal end; a window affixed in the aperture, wherein the window is substantially optically transparent; and a flange adjoining the proximal end of the probe body, the flange including a sealing surface and a sealing edge, wherein the flange separates an in-process portion of the probe from an ex-process portion of the probe, the in-process portion including at least the probe body, the sealing surface and the sealing edge, where at least the in-process portion of the probe consists essentially of an austenitic stainless steel material. Further aspects include a computer product configured to execute a method employing the probe.
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公开(公告)号：US11874230B2
公开(公告)日：2024-01-16
申请号：US17806134
申请日：2022-06-09
Applicant: Endress+Hauser Optical Analysis, Inc.
Inventor： Joseph B. Slater , Marc Winter , Oliver Link
CPC classification number: G01N21/65 , G01N9/24 , G01N33/0027
Abstract: A method for determining an amount of a Raman-invisible gas in a multi-component gas stream includes performing a first and second absolute Raman analysis on the gas stream. A decrease in the absolute Raman bands from the first analysis to the second analysis is attributed to an increase of the Raman-invisible gas in the gas stream. The amount of the Raman-invisible gas is calculated from the difference between the first and second sets of Raman bands. The calculation of the Raman-invisible gas is verified via a measurement and a calculation of a secondary property of the gas stream such as the thermal conductivity of the gas stream or the density of the gas stream.
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公开(公告)号：US20230400413A1
公开(公告)日：2023-12-14
申请号：US17806134
申请日：2022-06-09
Applicant: Endress+Hauser Optical Analysis, Inc.
Inventor： Joseph B. Slater , Marc Winter , Oliver Link
CPC classification number: G01N21/65 , G01N33/0027 , G01N9/24
Abstract: A method for determining an amount of a Raman-invisible gas in a multi-component gas stream includes performing a first and second absolute Raman analysis on the gas stream. A decrease in the absolute Raman bands from the first analysis to the second analysis is attributed to an increase of the Raman-invisible gas in the gas stream. The amount of the Raman-invisible gas is calculated from the difference between the first and second sets of Raman bands. The calculation of the Raman-invisible gas is verified via a measurement and a calculation of a secondary property of the gas stream such as the thermal conductivity of the gas stream or the density of the gas stream.
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Patent Agency Ranking
公开(公告)号：US11754539B2
公开(公告)日：2023-09-12
申请号：US16842849
申请日：2020-04-08
Applicant: SpectraSensors, Inc.
Inventor： Kevin Ludlum , Marc Winter , Benjamin Scherer , Xiang Liu
CPC classification number: G01N33/0006 , G01N21/31 , G01N33/0036 , G06N3/08 , G06N20/00
Abstract: The present disclosure relates to a computer-implemented method for forecasting calibration spectra including a step of providing a machine learning model trained using historical calibration data corresponding to different gas species at different pressures. The computer-implemented method also includes steps of performing a calibration scan of one gas species at one pressure using an analyzer and generating calibration curves for the analyzer corresponding to one or multiple gas species at multiple pressures using the machine learning model and the calibration scan. Thereafter, a spectrum is obtained using the analyzer, and a concentration measurement is generated using the spectrum and at least one of the calibration curves.
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7.发明授权公开(公告)号：US11598726B2
公开(公告)日：2023-03-07
申请号：US17405536
申请日：2021-08-18
Applicant: Endress+Hauser Optical Analysis, Inc.
Inventor： Sean J. Gilliam
Abstract: A method of characterizing and monitoring a pressing process includes acquiring online Raman spectra of a juice pressing process within a vessel at different times during the pressing process to generate a training data set; acquiring physical samples from pressing process near in time to the acquired Raman spectra; performing offline measurements of the target analyte properties and/or compositions using an assay measurement technique; generating a correlative model of the target analyte such that spectral changes in the training data set correlate with the offline measurements of the target analyte properties and/or compositions; acquiring online Raman spectra of a subsequent run of the pressing process within the vessel at different times during the run to generate a process data set; and applying the correlative model to the process data set to qualitatively and/or quantitatively predict a value of a property and/or composition of the target analyte.
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8.发明申请公开(公告)号：US20250052668A1
公开(公告)日：2025-02-13
申请号：US18446801
申请日：2023-08-09
Applicant: Endress+Hauser Optical Analysis, Inc.
Inventor： Joseph B. Slater
Abstract: A calibration material for calibrating a Raman spectrometer includes: a reference material configured to emit a broadband spectrum of luminescence light in response to receiving excitation light; and an additional material exhibiting a distinct Raman band within a spectral measurement range of the Raman spectrometer. A method of calibrating at least one Raman spectrometer using the disclosed calibration material includes: determining emission spectra of the calibration material at multiple temperatures; and calibrating each Raman spectrometer based on a calibration spectrum of the calibration material determined by the Raman spectrometer; determining a temperature of the calibration material by Raman thermometry; and adjusting a determination of spectral intensity values of intensity spectra performed by the respective Raman spectrometer based on the calibration spectrum, the temperature of the calibration material during calibration, and the emission spectra of the calibration material.
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公开(公告)号：US20240247980A1
公开(公告)日：2024-07-25
申请号：US18159216
申请日：2023-01-25
Applicant: Endress+Hauser Optical Analysis, Inc.
Inventor： Nicholas J. Croglio, JR. , Peter Scott , Douglas H. Beyer
Abstract: The present disclosure includes an optical head for a spectroscopic device configured to produce a beam of light, a reference signal detector, and a signal detector. A mirror reflects the beam of light from the light source toward a multi-sectioned window having a top side and a bottom side. The bottom side includes an AR coating and the top side has a first section including an AR coating and a second section including a beam splitter with transmittance and reflectance. A first beam path for the beam of light is defined by the mirror, the second section of the multi-sectioned window, and the reference signal detector. A second beam path for the beam of light is defined by the mirror, the second section of the multi-sectioned window, a medium contained in the spectroscopic device, an additional mirror, the first section of the multi-sectioned window, and the signal detector.
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公开(公告)号：US20240219231A1
公开(公告)日：2024-07-04
申请号：US18148564
申请日：2022-12-30
Applicant: Endress+Hauser Optical Analysis, Inc.
Inventor： Marc Winter , Joseph B. Slater
CPC classification number: G01J3/0294 , G01J3/0208 , G01J3/0221 , G01J3/024 , G01J3/18 , G02B6/02295
Abstract: A photonic crystal waveguide for conveying light with an input end and an output end to supply for an electromagnetic spectrometer includes: an input end having a convex envelope of a cross-section of the waveguide at the input end, which envelope defines a circular shape or a shape of a regular polygon with n1 corners, wherein n1 is a natural number bigger than 3; an output end having a cross-section that defines a slit shape; and a plurality of photonic crystal fibers, wherein an arrangement of the plurality of photonic crystal fibers defines the cross-sections at the input and output ends.
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