中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

80 records (took 0.023 seconds)

    OPTICAL REFLECTORS FOR SPECTROMETER GAS CELLS
    72.
    发明专利
    OPTICAL REFLECTORS FOR SPECTROMETER GAS CELLS 未知

    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

    IPC: G01N21/03 ,  G01N21/09

    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.

    Analytical equipment enclosure incorporating phase changing materials
    73.
    发明专利
    Analytical equipment enclosure incorporating phase changing materials 未知

    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

    IPC: G01N21/39 ,  G01N21/53

    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.

    SOLDERLESS MOUNTING FOR SEMICONDUCTOR LASERS
    74.
    发明专利
    SOLDERLESS MOUNTING FOR SEMICONDUCTOR LASERS 未知

    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

    IPC: H01S5/022 ,  B23K20/02 ,  H01S5/024 ,  H01S5/042

    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.

    Dynamic reconstruction of a calibration state of an absorption spectrometer
    75.
    发明专利
    Dynamic reconstruction of a calibration state of an absorption spectrometer 未知

    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

    IPC: G01N21/35 ,  G01N21/31 ,  G01N21/39 ,  G01N21/61

    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.

    DYNAMIC RECONSTRUCTION OF A CALIBRATION STATE OF AN ABSORPTION SPECTROMETER
    76.
    发明专利
    DYNAMIC RECONSTRUCTION OF A CALIBRATION STATE OF AN ABSORPTION SPECTROMETER 未知

    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

    IPC: G01N21/35 ,  G01N21/31 ,  G01N21/39 ,  G01N21/61

    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.

    Scrubber for reactive gasses
    77.
    发明专利
    Scrubber for reactive gasses 未知

    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

    IPC: B01D53/52 ,  B01D53/58 ,  B01D53/68 ,  G01N30/02

    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.

    OPTICAL ABSORBANCE MEASUREMENTS WITH SELF-CALIBRATION AND EXTENDED DYNAMIC RANGE
    78.
    发明专利
    OPTICAL ABSORBANCE MEASUREMENTS WITH SELF-CALIBRATION AND EXTENDED DYNAMIC RANGE 未知

    公开(公告)号：CA2765280A1

    公开(公告)日：2010-12-16

    申请号：CA2765280

    申请日：2010-06-11

    Applicant: SPECTRASENSORS INC

    Inventor： LIU XIANG ,  FEITISCH ALFRED ,  ZHOU XIN

    IPC: G01J3/42 ,  G01N21/25

    Abstract: Detector data representative of an intensity of light that impinges on a detector after being emitted from a light source and passing through a gas over a path length can be analyzed using a first analysis method to obtain a first calculation of an analyte concentration in the volume of gas and a second analysis method to obtain a second calculation of the analyte concentration. The second calculation can be promoted as the analyte concentration upon determining that the analyte concentration is out of a first target range for the first analysis method.

Patent Agency Ranking