公开(公告)号：CA2956394A1

公开(公告)日：2016-02-25

申请号：CA2956394

申请日：2015-07-09

Applicant: SPECTRASENSORS INC

Inventor： FEITISCH ALFRED ,  LIU XIANG ,  HELBLEY KEITH BENJAMIN ,  BEYER DOUGLAS

IPC: G01J3/02

Abstract: A spectrometer includes a light source that emits a beam into a sample volume comprising an absorbing medium. Thereafter, at least one detector detects at least a portion of the beam emitted by the light source. It is later determined, based on the detected at least a portion of the beam and by a controller, that a position and/or an angle of the beam should be changed. The beam emitted by the light source is then actively steered by an actuation element under control of the controller. In addition, a concentration of the absorbing media can be quantified or otherwise calculated (using the controller or optionally a different processor that can be local or remote). The actuation element(s) can be coupled to one or more of the light source, a detector or detectors, and a reflector or reflectors intermediate the light source and the detector(s).

公开(公告)号：CA2966470A1

公开(公告)日：2012-04-26

申请号：CA2966470

申请日：2011-02-15

Applicant: SPECTRASENSORS INC

Inventor： FEITISCH ALFRED ,  KELLER LUTZ ,  LIU XIANG ,  SCHREMPEL MATHIAS ,  HELBLEY KEITH BENJAMIN

IPC: G01J3/42 ,  G01J3/02

公开(公告)号：AU2015303969A1

公开(公告)日：2017-02-16

申请号：AU2015303969

申请日：2015-07-09

Applicant: SPECTRASENSORS INC

Inventor： FEITISCH ALFRED ,  LIU XIANG ,  HELBLEY KEITH BENJAMIN ,  BEYER DOUGLAS

IPC: G01J3/02 ,  G01J3/42

Abstract: A spectrometer includes a light source that emits a beam into a sample volume comprising an absorbing medium. Thereafter, at least one detector detects at least a portion of the beam emitted by the light source. It is later determined, based on the detected at least a portion of the beam and by a controller, that a position and/or an angle of the beam should be changed. The beam emitted by the light source is then actively steered by an actuation element under control of the controller. In addition, a concentration of the absorbing media can be quantified or otherwise calculated (using the controller or optionally a different processor that can be local or remote). The actuation element(s) can be coupled to one or more of the light source, a detector or detectors, and a reflector or reflectors intermediate the light source and the detector(s).

公开(公告)号：AU2011318585A1

公开(公告)日：2013-05-09

申请号：AU2011318585

申请日：2011-02-15

Applicant: SPECTRASENSORS INC

Inventor： FEITISCH ALFRED ,  KELLER LUTZ ,  LIU XIANG ,  SCHREMPEL MATHIAS ,  HELBLEY KEITH BENJAMIN

IPC: G01N21/35 ,  G01N21/61

Abstract: A valid state of an analytical system that includes a light source (102) and a detector (106) can be verified by determining that deviation of first light intensity data quantifying a first intensity of light received at the detector from the light source after the light has passed at least once through each of a reference gas in a validation cell (114) and a zero gas from a stored data set does not exceed a pre-defined threshold deviation. The stored data set can represent at least one previous measurement collected during a previous instrument validation process performed on the analytical system. The reference gas can include a known amount of an analyte. A concentration of the analyte in a sample gas in a measurement cell (112) can be determined by correcting second light intensity data quantifying a second intensity of the light received at the detector after the light passes at least once through each of the reference gas in the validation cell and a sample gas containing an unknown concentration of the analyte compound. Related systems, methods, and articles of manufacture are also described.

公开(公告)号：CA2815323A1

公开(公告)日：2012-04-26

申请号：CA2815323

申请日：2011-02-15

Applicant: SPECTRASENSORS INC

Inventor： FEITISCH ALFRED ,  KELLER LUTZ ,  LIU XIANG ,  SCHREMPEL MATHIAS ,  HELBLEY KEITH BENJAMIN

IPC: G01N21/35 ,  G01N21/61

Abstract: A valid state of an analytical system that includes a light source (102) and a detector (106) can be verified by determining that deviation of first light intensity data quantifying a first intensity of light received at the detector from the light source after the light has passed at least once through each of a reference gas in a validation cell (114) and a zero gas from a stored data set does not exceed a pre-defined threshold deviation. The stored data set can represent at least one previous measurement collected during a previous instrument validation process performed on the analytical system. The reference gas can include a known amount of an analyte. A concentration of the analyte in a sample gas in a measurement cell (112) can be determined by correcting second light intensity data quantifying a second intensity of the light received at the detector after the light passes at least once through each of the reference gas in the validation cell and a sample gas containing an unknown concentration of the analyte compound. Related systems, methods, and articles of manufacture are also described.

公开(公告)号：CA2815323C

公开(公告)日：2017-06-13

申请号：CA2815323

申请日：2011-02-15

Applicant: SPECTRASENSORS INC

Inventor： FEITISCH ALFRED ,  KELLER LUTZ ,  LIU XIANG ,  SCHREMPEL MATHIAS ,  HELBLEY KEITH BENJAMIN

IPC: G01J3/02

Abstract: A valid state of an analytical system that includes a light source (102) and a detector (106) can be verified by determining that deviation of first light intensity data quantifying a first intensity of light received at the detector from the light source after the light has passed at least once through each of a reference gas in a validation cell (114) and a zero gas from a stored data set does not exceed a pre-defined threshold deviation. The stored data set can represent at least one previous measurement collected during a previous instrument validation process performed on the analytical system. The reference gas can include a known amount of an analyte. A concentration of the analyte in a sample gas in a measurement cell (112) can be determined by correcting second light intensity data quantifying a second intensity of the light received at the detector after the light passes at least once through each of the reference gas in the validation cell and a sample gas containing an unknown concentration of the analyte compound. Related systems, methods, and articles of manufacture are also described.

公开(公告)号：AU2015346386A1

公开(公告)日：2017-05-18

申请号：AU2015346386

申请日：2015-11-11

Applicant: SPECTRASENSORS INC

Inventor： LIU XIANG ,  FEITISCH ALFRED ,  HELBLEY KEITH BENJAMIN ,  TEDESCO JAMES

IPC: G01N21/39 ,  G01N21/3504 ,  G01N21/65

Abstract: Background composition concentration data representative of an actual background composition of a sample gas can be used to model absorption spectroscopy measurement data obtained for a gas sample and to correct an analysis of the absorption spectroscopy data (e.g. for structural interference and collisional broadening) based on the modeling.

公开(公告)号：CA2967338A1

公开(公告)日：2016-05-19

申请号：CA2967338

申请日：2015-11-11

Applicant: SPECTRASENSORS INC

Inventor： LIU XIANG ,  FEITISCH ALFRED ,  HELBLEY KEITH BENJAMIN ,  TEDESCO JAMES

IPC: G01N21/25 ,  G01N21/31 ,  G01N21/3504 ,  G01N21/39 ,  G01N21/65

Abstract: Background composition concentration data representative of an actual background composition of a sample gas can be used to model absorption spectroscopy measurement data obtained for a gas sample and to correct an analysis of the absorption spectroscopy data (e.g. for structural interference and collisional broadening) based on the modeling.

公开(公告)号：AU2011318585B2

公开(公告)日：2015-08-06

申请号：AU2011318585

申请日：2011-02-15

Applicant: SPECTRASENSORS INC

Inventor： FEITISCH ALFRED ,  KELLER LUTZ ,  LIU XIANG ,  SCHREMPEL MATHIAS ,  HELBLEY KEITH BENJAMIN

IPC: G01N21/35 ,  G01N21/61

Abstract: A valid state of an analytical system that includes a light source (102) and a detector (106) can be verified by determining that deviation of first light intensity data quantifying a first intensity of light received at the detector from the light source after the light has passed at least once through each of a reference gas in a validation cell (114) and a zero gas from a stored data set does not exceed a pre-defined threshold deviation. The stored data set can represent at least one previous measurement collected during a previous instrument validation process performed on the analytical system. The reference gas can include a known amount of an analyte. A concentration of the analyte in a sample gas in a measurement cell (112) can be determined by correcting second light intensity data quantifying a second intensity of the light received at the detector after the light passes at least once through each of the reference gas in the validation cell and a sample gas containing an unknown concentration of the analyte compound. Related systems, methods, and articles of manufacture are also described.