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公开(公告)号：CA2683802C
公开(公告)日：2017-09-05
申请号：CA2683802
申请日：2008-04-11
Applicant: SPECTRASENSORS INC
Inventor： ZHOU XIN , LIU XIANG , FEITISCH ALFRED , SANGER GREGORY M
IPC: G01N21/25 , G01N21/3504 , G01N21/39
Abstract: A differential absorption spectrum for a reactive gas in a gas mixture can be generated for sample absorption data by subtracting background absorption data set from the sample absorption data. The background absorption data can be characteristic of absorption characteristics of the background composition in a laser light scan range that includes a target wavelength. The differential absorption spectrum can be converted to a measured concentration of the reactive gas using calibration data. A determination can be made whether the background composition has substantially changed relative to the background absorption data, and new background absorption data can be used if the background composition has substantially changed. Related systems, apparatus, methods, and/or articles are also described..
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62.发明专利
公开(公告)号：CA2865649C
公开(公告)日：2017-07-18
申请号：CA2865649
申请日：2013-03-21
Applicant: SPECTRASENSORS INC
Inventor： FEITISCH ALFRED , LIU XIANG , HUANG HSU-HUNG , JI WENHAI , CLINE RICHARD L
IPC: G01N21/35
Abstract: Validation verification data quantifying an intensity of light reaching a detector of a spectrometer from a light source of the spectrometer after the light passes through a validation gas across a known path length can be collected or received. The validation gas can include an amount of an analyte compound and an undisturbed background composition that is representative of a sample gas background composition of a sample gas to be analyzed using a spectrometer. The sample gas background composition can include one or more background components. The validation verification data can be compared with stored calibration data for the spectrometer to calculate a concentration adjustment factor, and sample measurement data collected with the spectrometer can be modified using this adjustment factor to compensate for collisional broadening of a spectral peak of the analyte compound by the background components. Related methods, articles of manufacture, systems, and the like are described.
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公开(公告)号：CA2887911C
公开(公告)日：2017-06-27
申请号：CA2887911
申请日：2013-10-23
Applicant: SPECTRASENSORS INC
Inventor： FEITISCH ALFRED , NEUBAUER GABI , SCHREMPEL MATHIAS
Abstract: A first contact surface (310) of a semiconductor laser chip (302) can be formed to a first target surface roughness and a second contact surface (312) of a carrier mounting (304) can be formed to a second target surface roughness. A first bond preparation layer (306) comprising a first metal can optionally be applied to the formed first contact surface, and a second bond preparation layer (308) comprising a second metal can optionally be applied to the formed second contact surface. Both preparation layers may be made of gold and diffusion bonding results from a heating of device under pressure. The first contact surface can be contacted with the second contact surface, and a solderless securing process can secure the semiconductor laser chip to the carrier mounting. Related systems, methods, articles of manufacture, and the like are also described.
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公开(公告)号：HUE029267T2
公开(公告)日：2017-02-28
申请号：HUE12193089
申请日：2008-08-29
Applicant: SPECTRASENSORS INC
Inventor： BAUM MARC M , MOSS JOHN , FEITISCH ALFRED , ZHOU XIN , LIU XIANG , KWAN ALEX
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公开(公告)号：AU2013334609B2
公开(公告)日：2016-12-01
申请号：AU2013334609
申请日：2013-10-23
Applicant: SPECTRASENSORS INC
Inventor： FEITISCH ALFRED , NEUBAUER GABI , SCHREMPEL MATHIAS
Abstract: A first contact surface (310) of a semiconductor laser chip (302) can be formed to a first target surface roughness and a second contact surface (312) of a carrier mounting (304) can be formed to a second target surface roughness. A first bond preparation layer (306) comprising a first metal can optionally be applied to the formed first contact surface, and a second bond preparation layer (308) comprising a second metal can optionally be applied to the formed second contact surface. Both preparation layers may be made of gold and diffusion bonding results from a heating of device under pressure. The first contact surface can be contacted with the second contact surface, and a solderless securing process can secure the semiconductor laser chip to the carrier mounting. Related systems, methods, articles of manufacture, and the like are also described.
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Patent Agency Ranking
公开(公告)号：AU2013359242B2
公开(公告)日：2016-09-22
申请号：AU2013359242
申请日：2013-12-12
Applicant: SPECTRASENSORS INC
Inventor： KELLER LUTZ , FEITISCH ALFRED , SCOTT PETER , SCHREMPEL MATHIAS , ST JOHN NATHAN
Abstract: A spectrometer cell can include a spacer, at least one end cap, and at least one mirror with a reflective surface. The end cap can be positioned proximate to a first contact end of the spacer such that the end cap and spacer at least partially enclose an internal volume of the spectrometer cell. The mirror can be secured in place by a mechanical attachment that may include attachment materials that are chemically inert to at least one reactive gas compound, be thermally stable above at least 120 °C, and be capable of holding an optical axis of the reflective surface in a fixed orientation relative to other components of the spectrometer cell and or a spectrometer device that comprises the spectrometer cell. The mirror can optionally be constructed of a material such as stainless steel, copper, aluminum, alumino-silicate, ceramic, or the like. Related methods, articles of manufacture, systems, etc. are described.
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公开(公告)号：AU2014346660A1
公开(公告)日：2016-05-19
申请号：AU2014346660
申请日：2014-11-06
Applicant: SPECTRASENSORS INC
Inventor： SCOTT PETER , FEITISCH ALFRED , DORN PETER , CHAIMOWITZ ADAM S , HUANG HSU-HUNG , SCHREMPEL MTHIAS , KELLER LUTZ
Abstract: A sample cell (100) can be designed to minimize excess gas volume. Described features can be advantageous in reducing an amount of gas required to flow through the sample cell during spectroscopic measurements, and in reducing a time (e.g. a total volume of gas) required to flush the cell (100) between sampling events. In some examples, contours of the inner surfaces (202) of the sample cell that contact the contained gas can be shaped, dimensioned, etc. such that a maximum clearance distance (120) is provided between the inner surfaces (202) at one or more locations. A device, method and an apparatus are described.
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公开(公告)号：CA2956395A1
公开(公告)日：2016-02-25
申请号：CA2956395
申请日：2015-07-09
Applicant: SPECTRASENSORS INC
Inventor： FEITISCH ALFRED , LIU XIANG , CHANG CHIH-HUSAN , HUANG HSU-HUNG
Abstract: At least one light source is configured to emit at least one beam into a sample volume of an absorbing medium. In addition, at least one detector is positioned to detect at least a portion of the beam emitted by the at least one light source. Further, at least one beam modification element is positioned between the at least one detector and the at least one light source to selectively change at least one of (i) a power intensity of, or (ii) a shape of the beam emitted by the at least one light source as detected by the at least one detector. A control circuit is coupled to the beam modification element. Related apparatus methods, articles of manufacture, systems, and the like are described.
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69.发明专利
公开(公告)号：AU2013234971B2
公开(公告)日：2015-06-25
申请号：AU2013234971
申请日：2013-03-21
Applicant: SPECTRASENSORS INC
Inventor： FEITISCH ALFRED , LIU XIANG , HUANG HSU-HUNG , JI WENHAI , CLINE RICHARD L
IPC: G01N21/35
Abstract: Validation verification data quantifying an intensity of light reaching a detector of a spectrometer from a light source of the spectrometer after the light passes through a validation gas across a known path length can be collected or received. The validation gas can include an amount of an analyte compound and an undisturbed background composition that is representative of a sample gas background composition of a sample gas to be analyzed using a spectrometer. The sample gas background composition can include one or more background components. The validation verification data can be compared with stored calibration data for the spectrometer to calculate a concentration adjustment factor, and sample measurement data collected with the spectrometer can be modified using this adjustment factor to compensate for collisional broadening of a spectral peak of the analyte compound by the background components. Related methods, articles of manufacture, systems, and the like are described.
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公开(公告)号：AU2013359242A1
公开(公告)日：2015-06-18
申请号：AU2013359242
申请日：2013-12-12
Applicant: SPECTRASENSORS INC
Inventor： KELLER LUTZ , FEITISCH ALFRED , SCOTT PETER , SCHREMPEL MATHIAS , ST JOHN NATHAN
Abstract: A spectrometer cell can include a spacer, at least one end cap, and at least one mirror with a reflective surface. The end cap can be positioned proximate to a first contact end of the spacer such that the end cap and spacer at least partially enclose an internal volume of the spectrometer cell. The mirror can be secured in place by a mechanical attachment that may include attachment materials that are chemically inert to at least one reactive gas compound, be thermally stable above at least 120 °C, and be capable of holding an optical axis of the reflective surface in a fixed orientation relative to other components of the spectrometer cell and or a spectrometer device that comprises the spectrometer cell. The mirror can optionally be constructed of a material such as stainless steel, copper, aluminum, alumino-silicate, ceramic, or the like. Related methods, articles of manufacture, systems, etc. are described.
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