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Patent Agency Ranking
公开(公告)号：US20240222836A1
公开(公告)日：2024-07-04
申请号：US18148550
申请日：2022-12-30
Applicant: Endress+Hauser Optical Analysis, Inc.
Inventor： Joseph B. Slater , Marc Winter
Abstract: A 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 filaments, wherein an arrangement of the plurality of filaments defines the cross-sections at the input and output ends, wherein each filament includes a core and a reflective coating covering a lateral area of the core, wherein the core includes an optically transparent material.
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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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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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公开(公告)号：US20240175804A1
公开(公告)日：2024-05-30
申请号：US18522602
申请日：2023-11-29
Applicant: Endress+Hauser Optical Analysis, Inc.
Inventor： Tobias Meinert , Benjamin Scherer , Marc Winter , Valentin Wittstock
CPC classification number: G01N21/1702 , G01N33/0027 , G01N2021/1704
Abstract: A gas sensor for determining a concentration of at least one gas in a gas mixture includes: at least one intensity modulatable light source; a measuring section, into which the gas mixture to be investigated can be allowed to flow; and an essentially gas-sealed detection cell, wherein the gas sensor is embodied such that light emitted from the light source is radiated into a measuring section, wherein the intensity of the emitted light is modulated with a modulation frequency, which differs from the resonant frequency of a mode of the acoustic resonance of the detection cell by less than 0.5 times, especially less than 0.25 times, the half-width of the mode. Further, a method for determining the concentration of the at least one gas in the gas mixture uses the gas sensor.
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