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151.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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公开(公告)号：CA2929171A1
公开(公告)日：2015-05-14
申请号：CA2929171
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：CA2893089A1
公开(公告)日：2014-06-19
申请号：CA2893089
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：AU2009333000B2
公开(公告)日：2014-05-22
申请号：AU2009333000
申请日：2009-12-24
Applicant: SPECTRASENSORS INC
Inventor： HU XUEJIAO , FEITISCH ALFRED
Abstract: Thermally controlled enclosures that can be used with gas analyzers are described. The enclosures incorporate one or more phase changing materials that buffer ambient and internal heat loads to reduce the power consumption demand of mechanical or electronic heating apparatus. Maintenance of gas analyzer equipment at a consistent temperature can be important to achieving stable and reproducible results. Related systems, apparatus, methods, and/or articles are also described.
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Patent Agency Ranking
公开(公告)号：CA2887911A1
公开(公告)日：2014-05-01
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：AU2011316820A1
公开(公告)日：2013-05-09
申请号：AU2011316820
申请日：2011-10-21
Applicant: SPECTRASENSORS INC
Inventor： LIU XIANG , LEWISON JOHN , JI WENHAI , FEITISCH ALFRED
Abstract: A reference harmonic absorption curve of a laser absorption spectrometer, which can include a tunable or scannable laser light source and a detector, can have a reference curve shape and can include a first, second, or higher order harmonic signal of a reference signal generated by the detector in response to light passing from the laser light source through a reference gas or gas mixture. The reference gas or gas mixture can include one or more of a target analyte and a background gas expected to be present during analysis of the target analyte. The reference harmonic absorption curve can have been determined for the laser absorption spectrometer in a known or calibrated state. A test harmonic absorption curve having a test curve shape is compared with the reference harmonic absorption curve to detect a difference between the test curve shape and the reference curve shape that exceeds a predefined allowed deviation and therefore indicates a change in an output of the laser light source relative to the known or calibrated state. One or more operating and/or analytical parameters of the laser absorption spectrometer are adjusted to correct the test curve shape to reduce the difference between the test curve shape and the reference curve shape.
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公开(公告)号：CA2540395C
公开(公告)日：2012-08-28
申请号：CA2540395
申请日：2004-02-11
Applicant: SPECTRASENSORS INC
Inventor： MAY RANDY
Abstract: A technique is disclosed for the detection of water vapor in a natural gas background. The system includes a light source (519) emitting light approximately within wavelength ranges such as 920- 960 nm, 1.877 - 1.901, or 2.711 - 2.786 . The light source emits light through a sample of natural gas that is detected by a detector (523). In one embodiment, the light source is a tunable diode laser and the moisture level is determined by harmonic spectroscopy. In other embodiments, a VCSEL, a color center laser, or a quantum cascade laser is utilized.
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公开(公告)号：CA2831773A1
公开(公告)日：2012-04-26
申请号：CA2831773
申请日：2011-10-21
Applicant: SPECTRASENSORS INC
Inventor： LIU XIANG , LEWISON JOHN , JI WENHAI , FEITISCH ALFRED
Abstract: A reference harmonic absorption curve of a laser absorption spectrometer, which can include a tunable or scannable laser light source and a detector, can have a reference curve shape and can include a first, second, or higher order harmonic signal of a reference signal generated by the detector in response to light passing from the laser light source through a reference gas or gas mixture. The reference gas or gas mixture can include one or more of a target analyte and a background gas expected to be present during analysis of the target analyte. The reference harmonic absorption curve can have been determined for the laser absorption spectrometer in a known or calibrated state. A test harmonic absorption curve having a test curve shape is compared with the reference harmonic absorption curve to detect a difference between the test curve shape and the reference curve shape that exceeds a predefined allowed deviation and therefore indicates a change in an output of the laser light source relative to the known or calibrated state. One or more operating and/or analytical parameters of the laser absorption spectrometer are adjusted to correct the test curve shape to reduce the difference between the test curve shape and the reference curve shape.
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公开(公告)号：AU2008292847B2
公开(公告)日：2012-04-12
申请号：AU2008292847
申请日：2008-08-29
Applicant: SPECTRASENSORS INC
Inventor： BAUM MARC M , ZHOU XIN , KWAN ALEX , LIU XIANG , MOSS JOHN , FEITISCH ALFRED
Abstract: Scrubber media for reactive gases, that can include but are not necessarily limited to hydrogen chloride (HCl), hydrogen sulfide (H2S), hydrogen fluoride (HF), and ammonia (NH3), can include reactive particles, potentially as small as nano-scale, that can optionally be suspended on macro-scale carrier particles. Reactive gases can be converted to non-volatile compounds by being passed through a bed of such scrubber media. Such scrubber media can be used to remove reactive gases from gas mixtures. Potential applications include differential absorption spectroscopy, air pollutant emission controls, and the like. Methods of preparing scrubber media are also described.
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