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    ENHANCEMENTS TO LASER SPECTROSCOPY MODELING BY MEASUREMENT OF HYDROCARBON FUEL GAS COMPOSITIONS
    3.
    发明公开
    ENHANCEMENTS TO LASER SPECTROSCOPY MODELING BY MEASUREMENT OF HYDROCARBON FUEL GAS COMPOSITIONS 审中-公开

    公开(公告)号：US20230417656A1

    公开(公告)日：2023-12-28

    申请号：US17849360

    申请日：2022-06-24

    Applicant: ABB Schweiz AG

    Inventor： Raphaël Desbiens ,  John Brian Leen ,  Kyle Owen

    IPC: G01N21/31 ,  G01N33/00

    CPC classification number: G01N21/31 ,  G01N33/0044 ,  G01N33/004 ,  G01N2201/0612

    Abstract: The present disclosure relates to measuring chemical constituents and associated properties of hydrocarbon fuel mixtures, and further relates to tunable diode laser absorption spectrometry gas analyzers having improved chemometric models. Methods described herein include setting gas concentration fit coefficients to a chemometric model for the measured gas concentration data for each of one or more background; wherein the chemometric model employs a broadband offset basis to a final basis set spectrum for the one or more gaseous target components; applying an iterative mathematical model to the measured light absorption data by iteratively adjusting target component fit coefficients until the measured light absorption data matches the chemometric model; and, determining a calculated amount of the one or more target components within the sample gas mixture by applying the gas concentration fit coefficients and the target component fit coefficients to the measured light absorption data and to the measured gas concentration data.

    SYSTEMS AND METHODS FOR MEASURING GAS USING LASER SPECTROSCOPY
    4.
    发明申请
    SYSTEMS AND METHODS FOR MEASURING GAS USING LASER SPECTROSCOPY 有权

    公开(公告)号：US20250110046A1

    公开(公告)日：2025-04-03

    申请号：US18477727

    申请日：2023-09-29

    Applicant: ABB Schweiz AG

    Inventor： Sylvio Laplante ,  Kyle Owen

    IPC: G01N21/3504 ,  G01N21/05

    Abstract: A laser spectroscopy assembly for gas measurement is provided. The assembly includes a gas cell. The cell body includes an input optic. The assembly also includes a light source configured to emit laser light into the gas cell. The assembly further includes an optical mask positioned in an optical path of the laser light and positioned between the gas cell and the light source. The optical mask includes a surface forming an angle with the input optic, the angle unequal to zero or 90°. The optical mask also includes an entry defined in the surface and sized to admit the laser light therethrough. The entry is positioned in the optical path. The optical mask is configured to reduce noise from etalons caused by parallel surfaces and/or quasi-parallel surfaces in the optical path.

    Systems and methods for skewed basis set fitting
    5.
    发明授权
    Systems and methods for skewed basis set fitting 有权

    公开(公告)号：US11639892B2

    公开(公告)日：2023-05-02

    申请号：US17221759

    申请日：2021-04-02

    Applicant: ABB Schweiz AG

    Inventor： J. Brian Leen ,  Kyle Owen ,  John Savee ,  Dmitry Skvortsov ,  Paul Hansen ,  Raphael Desbiens

    IPC: G01N21/31

    Abstract: Systems and methods for skewed basis set fitting may include obtaining measured absorption data indicative of an amount of absorption of light by a sample gas at each of multiple frequencies, determining an absorption dependent cavity time constant indicative of a skew to the measured absorption data caused by light reflections within a cavity in which the sample gas is contained, obtaining reference absorption data including basis sets indicative of reference amounts of light absorbed by each of multiple gases at each of the multiple frequencies, skewing the reference absorption data based on the absorption dependent cavity time constant to generate skewed reference absorption data, and fitting the measured absorption data to the skewed reference absorption data to identify an amount of at least one constituent gas within the sample gas.

    PUMP MANIFOLD WITH REDUNDANCY FOR GAS EXTRACTION SYSTEM
    6.
    发明公开
    PUMP MANIFOLD WITH REDUNDANCY FOR GAS EXTRACTION SYSTEM 审中-公开

    公开(公告)号：US20230418314A1

    公开(公告)日：2023-12-28

    申请号：US17849400

    申请日：2022-06-24

    Applicant: ABB Schweiz AG

    Inventor： Alexandre Boivin ,  Marc Burnett ,  Dominic Michaud ,  Kyle Owen ,  Axel Meunier ,  John Brian Leen

    IPC: G05D7/06 ,  F16L41/03

    CPC classification number: G05D7/0682 ,  F16L41/03

    Abstract: The present disclosure relates to systems and methods that include a multiple pump manifold to provide redundancy for use with high availability gas extraction system in industrial instrumentation. A method of operating a redundant pump assembly including operating a first pump of a plurality of pumps for an operation period; validating a second pump of the plurality of pumps at the end of the operation period of the first pump; validating a third pump of the plurality of pumps at the end of the operation period of the first pump; and, operating the third pump for the operation period, where the second pump and third pump are validated as operational.

    SYSTEMS AND METHODS FOR SKEWED BASIS SET FITTING
    7.
    发明申请
    SYSTEMS AND METHODS FOR SKEWED BASIS SET FITTING 有权

    公开(公告)号：US20220317029A1

    公开(公告)日：2022-10-06

    申请号：US17221759

    申请日：2021-04-02

    Applicant: ABB Schweiz AG

    Inventor： J. Brian Leen ,  Kyle Owen ,  John Savee ,  Dmitry Skvortsov ,  Paul Hansen ,  Raphael Desbiens

    IPC: G01N21/31

    Abstract: Systems and methods for skewed basis set fitting may include obtaining measured absorption data indicative of an amount of absorption of light by a sample gas at each of multiple frequencies, determining an absorption dependent cavity time constant indicative of a skew to the measured absorption data caused by light reflections within a cavity in which the sample gas is contained, obtaining reference absorption data including basis sets indicative of reference amounts of light absorbed by each of multiple gases at each of the multiple frequencies, skewing the reference absorption data based on the absorption dependent cavity time constant to generate skewed reference absorption data, and fitting the measured absorption data to the skewed reference absorption data to identify an amount of at least one constituent gas within the sample gas.

    MEASUREMENT OF HYDROCARBON FUEL GAS COMPOSITION AND PROPERTIES FROM TUNABLE DIODE LASER ABSORPTION SPECTROMETRY
    8.
    发明申请
    MEASUREMENT OF HYDROCARBON FUEL GAS COMPOSITION AND PROPERTIES FROM TUNABLE DIODE LASER ABSORPTION SPECTROMETRY 审中-公开

    公开(公告)号：US20180095031A1

    公开(公告)日：2018-04-05

    申请号：US15283965

    申请日：2016-10-03

    Applicant: ABB Schweiz AG

    Inventor： Kyle Owen ,  Manish X. Gupta

    IPC: G01N21/39 ,  G01N21/359 ,  G01N21/3504 ,  G01N33/22

    CPC classification number: G01N21/39 ,  F23N2021/10 ,  G01J3/42 ,  G01N21/031 ,  G01N21/05 ,  G01N21/3504 ,  G01N21/359 ,  G01N33/225 ,  G01N2021/399 ,  G01N2201/129

    Abstract: A tunable diode laser absorption spectrometer and a method of processing absorption spectra is used to measure concentrations of selected fuel gas components and calculate several fuel gas parameters, including heating value, relative density, compressibility, theoretical hydrocarbon liquid content and Wobbe index. In the described incarnation, a tunable laser diode directs near-infrared light into an optical cavity through a sample of fuel gas. A sensor measures intensity of light exiting the cavity as the laser wavelength is tuned over a specified range to construct a cavity-enhanced absorption spectrum for the fuel gas. A set of basis spectra for expected component species is used to analyze the spectrum and determine component concentrations, including methane, ethane, carbon dioxide, and other discrete and structured absorbers. Critically, a generic broadband absorption is used to model higher hydrocarbons that present themselves as nearly featureless absorption spectra. The fuel gas parameters are then calculated directly from determined component concentrations and the broadband absorption representing the higher hydrocarbons.

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