DE69432355D1 - Gasspektroskopie - Google Patents

Gasspektroskopie

Info

Publication number
DE69432355D1
DE69432355D1 DE69432355T DE69432355T DE69432355D1 DE 69432355 D1 DE69432355 D1 DE 69432355D1 DE 69432355 T DE69432355 T DE 69432355T DE 69432355 T DE69432355 T DE 69432355T DE 69432355 D1 DE69432355 D1 DE 69432355D1
Authority
DE
Germany
Prior art keywords
gas spectroscopy
spectroscopy
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69432355T
Other languages
English (en)
Other versions
DE69432355T2 (de
Inventor
W Mccaul
E Doggett
K Thorson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE69432355D1 publication Critical patent/DE69432355D1/de
Publication of DE69432355T2 publication Critical patent/DE69432355T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
    • G01N2021/396—Type of laser source
    • G01N2021/399—Diode laser
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
    • G02B6/4208—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback using non-reciprocal elements or birefringent plates, i.e. quasi-isolators
    • G02B6/4209—Optical features
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
    • H01S5/0064—Anti-reflection components, e.g. optical isolators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
    • H01S5/06216—Pulse modulation or generation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
DE69432355T 1993-04-16 1994-04-15 Gasspektroskopie Expired - Lifetime DE69432355T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/049,474 US5448071A (en) 1993-04-16 1993-04-16 Gas spectroscopy
PCT/US1994/004170 WO1994024528A1 (en) 1993-04-16 1994-04-15 Gas spectroscopy

Publications (2)

Publication Number Publication Date
DE69432355D1 true DE69432355D1 (de) 2003-04-30
DE69432355T2 DE69432355T2 (de) 2003-12-24

Family

ID=21960015

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69432355T Expired - Lifetime DE69432355T2 (de) 1993-04-16 1994-04-15 Gasspektroskopie

Country Status (4)

Country Link
US (3) US5448071A (de)
EP (1) EP0729565B1 (de)
DE (1) DE69432355T2 (de)
WO (1) WO1994024528A1 (de)

Families Citing this family (75)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5572031A (en) * 1994-11-23 1996-11-05 Sri International Pressure- and temperature-compensating oxygen sensor
EP0766080A1 (de) * 1995-09-29 1997-04-02 FINMECCANICA S.p.A. AZIENDA ANSALDO System und Verfahren zur Überwachung eines Verbrennungsvorgangs und von Schadstoffen mit Laserdioden
US5742399A (en) * 1996-04-18 1998-04-21 American Air Liquide, Inc. Method for stabilizing the wavelength in a laser spectrometer system
US5963336A (en) 1995-10-10 1999-10-05 American Air Liquide Inc. Chamber effluent monitoring system and semiconductor processing system comprising absorption spectroscopy measurement system, and methods of use
EP0768523B1 (de) * 1995-10-10 2004-06-09 L'air Liquide, S.A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Verfahren und System zur hochempfindlichen Detektion von molekularen Spezien unter Vakuum mittels Oberschwingungsspektroskopie
US5818578A (en) * 1995-10-10 1998-10-06 American Air Liquide Inc. Polygonal planar multipass cell, system and apparatus including same, and method of use
US5949537A (en) 1996-04-18 1999-09-07 American Air Liquide Inc. In-line cell for absorption spectroscopy
US5880850A (en) * 1996-04-18 1999-03-09 American Air Liquide Inc Method and system for sensitive detection of molecular species in a vacuum by harmonic detection spectroscopy
US5810723A (en) * 1996-12-05 1998-09-22 Essential Medical Devices Non-invasive carboxyhemoglobin analyer
FI101749B1 (fi) * 1996-12-30 1998-08-14 Instrumentarium Oy Kaasukomponentin pitoisuuden tarkka mittaaminen kaasuseoksessa, jossa muut komponentit vaikuttavat pitoisuusmääritykseen
US5973782A (en) * 1997-01-09 1999-10-26 Southwest Sciences Incorporated Phaseless wavelength modulation spectroscopy
DE19717145C2 (de) * 1997-04-23 1999-06-02 Siemens Ag Verfahren zur selektiven Detektion von Gasen und Gassensor zu dessen Durchführung
US6064488A (en) * 1997-06-06 2000-05-16 Monitor Labs, Inc. Method and apparatus for in situ gas concentration measurement
DE19807481A1 (de) * 1998-02-24 1999-08-26 Wolfrum Verfahren und Vorrichtung zur Ermittlung der Absorption einer Gas- und Flüssigkeitsprobe
US6386906B1 (en) * 1998-03-16 2002-05-14 Telefonix Inc Cord management apparatus and method
DE19819192C1 (de) * 1998-04-30 1999-07-29 Siemens Ag Gasanalysator
US6091504A (en) * 1998-05-21 2000-07-18 Square One Technology, Inc. Method and apparatus for measuring gas concentration using a semiconductor laser
US6356350B1 (en) 1998-07-30 2002-03-12 Southwest Sciences Incorporated Wavelength modulation spectroscopy with multiple harmonic detection
DE19840345B4 (de) * 1998-09-04 2004-09-30 Dräger Medical AG & Co. KGaA Verfahren und Vorrichtung zum quantitativen Aufspüren eines vorgegebenen Gases
US6064898A (en) * 1998-09-21 2000-05-16 Essential Medical Devices Non-invasive blood component analyzer
DE19962178A1 (de) * 1999-12-22 2001-06-28 Siemens Ag Verfahren zur Signalbearbeitung in der Laserspektroskopie
US7427501B2 (en) * 2000-09-29 2008-09-23 Becton, Dickinson And Company System and method for optically monitoring the concentration of a gas, or the pressure, in a sample vial to detect sample growth
US6442736B1 (en) 2000-10-03 2002-08-27 L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'expolitation Des Procedes Georges Claude Semiconductor processing system and method for controlling moisture level therein
US6940599B1 (en) * 2002-02-08 2005-09-06 Southwest Sciences Incorporated Envelope functions for modulation spectroscopy
US6844554B2 (en) 2002-06-28 2005-01-18 Instrumentarium Corp. Method and arrangement for determining the concentration of a gas component in a gas mixture
WO2004090496A2 (en) * 2003-03-31 2004-10-21 Zolo Technologies, Inc. Method and apparatus for the monitoring and control of combustion
US7535006B2 (en) * 2003-06-09 2009-05-19 Canberra Albuquerque, Inc. Gaseous uranium hexafluride isotope measurement by diode laser spectroscopy
US7291145B2 (en) * 2003-10-14 2007-11-06 Arnold Steven Seid Oxygen sensing during a surgical procedure
US7409117B2 (en) 2004-02-11 2008-08-05 American Air Liquide, Inc. Dynamic laser power control for gas species monitoring
US7787728B2 (en) * 2004-03-31 2010-08-31 Zolo Technologies, Inc. Optical mode noise averaging device
US20060044562A1 (en) * 2004-08-25 2006-03-02 Norsk Elektro Optikk As Gas monitor
FI117808B (fi) * 2004-09-14 2007-02-28 Vaisala Oyj Kaasun pitoisuuden mittauslaitteisto ja menetelmä
US20060135691A1 (en) * 2004-11-22 2006-06-22 Phillips Plastics Corporation Foaming additives
DE102005020864B4 (de) * 2005-05-04 2007-11-15 Tyco Electronics Raychem Gmbh Gassensoranordnung mit verbesserter Langzeitstabilität und Messverfahren
WO2006124422A2 (en) * 2005-05-16 2006-11-23 Dow Global Technologies Inc. Excess air control for cracker furnace burners
US11696992B2 (en) 2005-09-12 2023-07-11 ResMed Pty Ltd High flow therapy device utilizing a non-sealing respiratory interface and related methods
US11833301B2 (en) 2005-09-12 2023-12-05 ResMed Pty Ltd High flow therapy device utilizing a non-sealing respiratory interface and related methods
US11497407B2 (en) 2005-09-12 2022-11-15 ResMed Pty Ltd High flow therapy device utilizing a non-sealing respiratory interface and related methods
US11717174B2 (en) 2005-09-12 2023-08-08 ResMed Pty Ltd High flow therapy device utilizing a non-sealing respiratory interface and related methods
US11458270B2 (en) 2005-09-12 2022-10-04 ResMed Pty Ltd High flow therapy device utilizing a non-sealing respiratory interface and related methods
AU2006290202A1 (en) 2005-09-12 2007-03-22 Mergenet Medical, Inc. Nasal cannula
US8522782B2 (en) * 2005-09-12 2013-09-03 Mergenet Medical, Inc. High flow therapy device utilizing a non-sealing respiratory interface and related methods
JP5180088B2 (ja) * 2005-11-04 2013-04-10 ゾロ テクノロジーズ，インコーポレイティド ガスタービンエンジンの燃焼器内における分光測定の方法及び装置
AU2006348403A1 (en) * 2005-12-14 2008-05-22 Mergenet Medical Inc. High flow therapy device
JP4199766B2 (ja) * 2005-12-16 2008-12-17 トヨタ自動車株式会社 排ガス分析方法および排ガス分析装置
JP4594277B2 (ja) 2006-05-31 2010-12-08 トヨタ自動車株式会社 排ガス分析装置におけるセンサユニット
US20080123712A1 (en) * 2006-06-15 2008-05-29 Spectrasensors, Inc. Measuring water vapor in high purity gases
DE102006038365B3 (de) * 2006-08-16 2007-12-20 Dräger Safety AG & Co. KGaA Messvorrichtung
JP4732277B2 (ja) * 2006-08-23 2011-07-27 トヨタ自動車株式会社 ガス分析装置及びガス分析方法
WO2008030386A1 (en) * 2006-09-01 2008-03-13 Dow Global Technologies Inc. Improved control and optimization of process for making ethylene oxide
US11318267B2 (en) 2006-09-12 2022-05-03 ResMed Pty Ltd High flow therapy device utilizing a non-sealing respiratory interface and related methods
US7728978B2 (en) * 2006-10-18 2010-06-01 Spectrasensors, Inc. Detection of moisture in refrigerants
US8500442B2 (en) * 2007-02-26 2013-08-06 Yokogawa Corp. Of America Combustion gas analysis
AU2007237278B1 (en) * 2007-11-30 2009-05-21 Tq Environmental Plc Gas monitoring system
US7957001B2 (en) * 2008-10-10 2011-06-07 Ge Infrastructure Sensing, Inc. Wavelength-modulation spectroscopy method and apparatus
US7943915B2 (en) * 2008-10-10 2011-05-17 Ge Infrastructure Sensing, Inc. Method of calibrating a wavelength-modulation spectroscopy apparatus
JP5576399B2 (ja) 2009-01-09 2014-08-20 ゾロ テクノロジーズ，インコーポレイティド ボイラの内部空間における燃焼特性をモニタするモニタ方法及びモニタ装置
CN101504366B (zh) * 2009-03-10 2011-07-20 哈尔滨工业大学 氧气浓度检测仪
WO2010106064A1 (de) * 2009-03-17 2010-09-23 Siemens Aktiengesellschaft Nicht-lineare wellenlängenmodulation bei der laserspektroskopie
DE102009018620A1 (de) 2009-04-27 2010-10-28 Carefusion Germany 234 Gmbh Ansteuer- und Auswerteschaltung, Messgerät sowie Verfahren zum Messen der Konzentration eines Gases
RU2530686C2 (ru) 2009-08-10 2014-10-10 Золо Текнолоджиз, Инк. Уменьшение шума оптического сигнала с использованием многомодового передающего волокна
WO2011092274A1 (de) * 2010-01-29 2011-08-04 Siemens Aktiengesellschaft Anordnung zur konzentrationsmessung von sauerstoff im abgasbereich einer feuerungsanlage
CN107991250B (zh) 2011-05-20 2021-05-07 株式会社堀场制作所 测量单元及气体分析装置
EP2571117A1 (de) 2011-09-15 2013-03-20 Axetris AG Lasereinheit mit unterdrückter Rückkopplung
US8667977B1 (en) 2012-03-05 2014-03-11 Oxigraf, Inc. Oxygen sensor for tank safety
CA2871072C (en) 2012-04-19 2020-07-14 Zolo Technologies, Inc. In-furnace retro-reflectors with steerable tunable diode laser absorption spectrometer
DE102013213458B4 (de) * 2013-07-09 2015-07-09 Siemens Aktiengesellschaft Verfahren zur Messung der Konzentration einer Gaskomponente in einem Messgas
CN103389283B (zh) * 2013-07-16 2015-04-01 哈尔滨工业大学 采用高漫反射方腔增加光程的可调谐二极管激光痕量气体检测装置及方法
US10048195B2 (en) 2014-01-31 2018-08-14 The Boeing Company Oxygen analysis system and method for measuring, monitoring and recording oxygen concentration in aircraft fuel tanks
DE102014016515B4 (de) * 2014-11-10 2021-04-29 Dräger Safety AG & Co. KGaA Optischer Gassensor
JP6827932B2 (ja) 2014-12-23 2021-02-10 オンポイント テクノロジーズ リミテッド ライアビリティ カンパニー 広間隔波長のためのｔｄｌａｓ構造
FR3052865B1 (fr) * 2016-06-17 2018-07-13 Continental Automotive France Procede de mesure de pression d'un carburant gazeux comprime dans une ligne d'alimentation d'un moteur equipant un vehicule automobile et dispositif de mesure associe
EP3638222B1 (de) 2017-06-12 2024-04-03 Georgia State University Research Foundation, Inc. Enzymgetriggerte kohlenmonoxidfreisetzende moleküle
US10466106B2 (en) * 2017-12-22 2019-11-05 Nec Corporation Gas concentration measurement by 2F signal trough distance
CN108489935B (zh) * 2018-03-12 2019-09-17 山东大学 一种吸收光谱气体传感领域自加宽效应的修正方法

Family Cites Families (90)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906513A (en) * 1970-06-29 1975-09-16 Beckman Instruments Inc Low-pressure inking system
US3726271A (en) * 1970-07-02 1973-04-10 Cardio Pulmonary Inst Corp Spirometer with automatic electronic zeroing circuit
US3683410A (en) * 1970-08-05 1972-08-08 Beckman Instruments Inc Rectilinear recording arrangement for direct writing oscillographs
US3683700A (en) * 1970-08-28 1972-08-15 Andrew L Wilfong Gas analyzer
US3723731A (en) * 1971-03-18 1973-03-27 Environmental Res & Tech Absorption spectroscopy
US3699471A (en) * 1971-07-20 1972-10-17 United Aircraft Corp Stray radiation suppression device
US3726270A (en) * 1971-09-20 1973-04-10 Syst Res Labor Inc Pulmonary information transmission system
JPS5144832B2 (de) * 1972-03-31 1976-12-01
US3831589A (en) * 1973-01-29 1974-08-27 Beckman Instruments Inc Surface electrode adapted for use with rheographic apparatus
US4084906A (en) * 1975-02-06 1978-04-18 Honeywell Inc. Multigas digital correlation spectrometer
US4068125A (en) * 1975-02-18 1978-01-10 Diax Corporation Laser absorption spectroscopy employing varying absorption conditions
US3995960A (en) * 1975-07-25 1976-12-07 Nasa Method and apparatus for background signal reduction in opto-acoustic absorption measurement
DE2635171C3 (de) * 1976-08-05 1980-06-19 6000 Frankfurt Gerät zur Bestimmung der Konzentration eines Bestandteils einer Gasprobe
US4085741A (en) * 1976-08-11 1978-04-25 Gould Godart B.V. Apparatus for effecting plethysmography
NL7906868A (nl) * 1979-09-14 1981-03-17 Gould Godart Bv Gasanalysator.
NL7906869A (nl) * 1979-09-14 1981-03-17 Gould Godart Bv Inrichting voor het bepalen van de volumewaarde van een omsloten ruimte.
FI66487C (fi) * 1980-06-19 1984-10-10 Outokumpu Oy Anordning foer foerflyttning av fast material som matas pao ytn av en smaelta samt foer krossning av slaggskorpa som bi ldts pao smaeltans yta
US4440177A (en) * 1980-07-03 1984-04-03 Medical Graphics Corporation Respiratory analyzer system
US4368740A (en) * 1980-11-03 1983-01-18 Binder Andy S Physiologic analyzer
EP0277662B1 (de) * 1981-02-25 1991-09-18 OEHLER, Oscar, Dr. Detektionsvorrichtung für den optisch-spektroskopischen Nachweis von Gasen
US4410273A (en) * 1981-03-09 1983-10-18 Laser Analytics, Inc. Scanning laser spectrometer
US4370152A (en) * 1981-06-29 1983-01-25 Beckman Instruments, Inc. Gas dryer cartridge
US4492862A (en) * 1981-08-07 1985-01-08 Mathematical Sciences Northwest, Inc. Method and apparatus for analyzing components of hydrocarbon gases recovered from oil, natural gas and coal drilling operations
WO1983001112A1 (en) * 1981-09-18 1983-03-31 Carter, Timothy Method for the determination of species in solution with an optical wave-guide
US4463764A (en) * 1981-09-29 1984-08-07 Medical Graphics Corporation Cardiopulmonary exercise system
US4498737A (en) * 1982-02-26 1985-02-12 Benson Inc. Adjusting mechanism for use with diode lasers
US4448058A (en) * 1982-07-02 1984-05-15 Sensormedics Corporation Respiratory gas analysis instrument having improved volume calibration method and apparatus
US4537058A (en) * 1982-07-06 1985-08-27 Sensormedics Corporation Volume calibration syringe
US4489239A (en) * 1982-09-24 1984-12-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Portable remote laser sensor for methane leak detection
EP0108562A1 (de) * 1982-11-05 1984-05-16 British Telecommunications Verfahren und Vorrichtung zum Steuern von Lasern
US4509551A (en) * 1982-12-27 1985-04-09 Sensormedics Corporation Breath switch
US4546793A (en) * 1982-12-27 1985-10-15 Sensormedics Corporation Breath switch
US4705617A (en) * 1983-05-06 1987-11-10 Sensormedics Corporation Apparatus for deplating cutaneous gas sensors
US4586149A (en) * 1983-07-05 1986-04-29 Sensormedics Corporation Temperature control system for cutaneous gas monitor
US4601293A (en) * 1983-07-05 1986-07-22 Sensormedics Corporation Temperature control system for cutaneous gas monitor
US4821709A (en) * 1983-08-01 1989-04-18 Sensormedics Corporation High frequency ventilator and method
US4581714A (en) * 1983-09-09 1986-04-08 Sensormedics Corporation Method of calibrating and linearizing the output of fluid measuring instruments
US4930519A (en) * 1984-04-02 1990-06-05 Medical Graphics Corporation Method of graphing cardiopulmonary data
US4637987A (en) * 1984-05-07 1987-01-20 Gould Inc. Gas monitoring device and method
US4677078A (en) * 1984-05-07 1987-06-30 Gould Inc. Oxygen monitoring device and method
NL8401757A (nl) * 1984-05-30 1985-12-16 Gould Medical Bv Waterafscheider voor een gasanalyse-inrichting.
NL8402041A (nl) * 1984-06-28 1986-01-16 Gould Medical Bv Inrichting voor het meten van het volume van een meetgas.
JPS6179286A (ja) * 1984-09-24 1986-04-22 ゼロツクス　コーポレーシヨン レーザダイオード及びそのモードホツピング防止方法
GB2165640B (en) * 1984-10-13 1988-05-18 Stc Plc Gas or vapour concentration monitoring
US4697450A (en) * 1985-03-15 1987-10-06 Sensormedics Corporation Gas monitor having trend indicators
US4719910A (en) * 1985-04-29 1988-01-19 Jensen Robert L Oscillating ventilator and method
US4684258A (en) * 1985-07-31 1987-08-04 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method and apparatus for enhancing laser absorption sensitivity
US4684805A (en) * 1985-08-21 1987-08-04 General Motors Corporation Method and apparatus for measuring stable isotopes
US4805612A (en) * 1985-09-13 1989-02-21 Sensormedics Corporation High frequency ventilation
US4730112A (en) * 1986-03-07 1988-03-08 Hibshman Corporation Oxygen measurement using visible radiation
US4883963A (en) * 1986-04-28 1989-11-28 Bran+Luebbe Gmbh Optical analysis method and apparatus having programmable rapid random wavelength access
US4800886A (en) * 1986-07-14 1989-01-31 C. R. Bard, Inc. Sensor for measuring the concentration of a gaseous component in a fluid by absorption
US4780613A (en) * 1986-09-22 1988-10-25 Spectral Sciences, Inc. Infrared species specific emission source
US4867571A (en) * 1986-09-26 1989-09-19 Sensormedics Corporation Wave form filter pulse detector and method for modulated signal
US4824242A (en) * 1986-09-26 1989-04-25 Sensormedics Corporation Non-invasive oximeter and method
DE3633931A1 (de) * 1986-10-04 1988-04-07 Kernforschungsz Karlsruhe Verfahren und einrichtung zur kontinuierlichen messung der konzentration eines gasbestandteiles
US5129401A (en) * 1986-10-17 1992-07-14 Nellcor, Inc. Method for distinguishing respiratory events in a gas analyzer
GB8625530D0 (en) * 1986-10-24 1986-11-26 Goodall D M Optical apparatus
US4805122A (en) * 1986-12-31 1989-02-14 Sensormedics Corporation Temperature control system for cutaneous gas monitor
KR910004265B1 (ko) * 1987-03-26 1991-06-25 가부시기가이샤 히다찌세이사꾸쇼 반도체 레이저 장치와 그 제조 방법 및 그것을 사용한 광 헤드
US4924095A (en) * 1987-06-02 1990-05-08 West Lodge Research Remote gas analyzer for motor vehicle exhaust emissions surveillance
US4796639A (en) * 1987-11-05 1989-01-10 Medical Graphics Corporation Pulmonary diagnostic system
US4934816A (en) * 1988-05-18 1990-06-19 Southwest Sciences, Incorporated Laser absorption detection enhancing apparatus and method
US4937448A (en) * 1988-05-26 1990-06-26 Spectra-Physics, Inc. Self-normalizing single-beam laser spectrometer
US4886358A (en) * 1988-05-31 1989-12-12 The United States Of America As Represented By The Secretary Of The Navy Organic vapor assay by Raman spectroscopy
SE8802536D0 (sv) * 1988-07-07 1988-07-07 Altoptronic Ab Metod och apparat for spektroskopisk metning av koncentrationen av en gas i ett prov
JPH0293617A (ja) * 1988-09-30 1990-04-04 Ando Electric Co Ltd 光減衰量加算器
US4898465A (en) * 1989-01-30 1990-02-06 Medical Graphics Corporation Gas analyzer apparatus
US5096671A (en) * 1989-03-15 1992-03-17 Cordis Corporation Fiber optic chemical sensors incorporating electrostatic coupling
US4995256A (en) * 1989-03-20 1991-02-26 Medical Graphics Corporation Zirconia cell O2 sensor for respiratory gas analysis
US5032435A (en) * 1989-03-27 1991-07-16 The United States Of America As Represented By The United States Department Of Energy UV absorption control of thin film growth
US4969702A (en) * 1989-05-22 1990-11-13 Tektronix, Inc. Laser pigtail assembly and method of manufacture
US5094819A (en) * 1989-06-16 1992-03-10 Washington Research Foundation Fluorescence-based optical sensor and method for detection of lipid-soluble analytes
US4968887A (en) * 1989-07-14 1990-11-06 Evionics, Inc. Gaseous nitrogen detection using excited-state laser spectroscopy
US5026991A (en) * 1989-09-20 1991-06-25 Spectral Sciences, Inc. Gaseous species absorption monitor
US5047639A (en) * 1989-12-22 1991-09-10 Wong Jacob Y Concentration detector
DE4012454C1 (de) * 1990-04-19 1991-08-08 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen, De
US5124130A (en) * 1990-05-22 1992-06-23 Optex Biomedical, Inc. Optical probe
US5038773A (en) * 1990-06-08 1991-08-13 Medical Graphics Corporation Flow meter system
US5042500A (en) * 1990-06-18 1991-08-27 Medical Graphics Corporation Drying sample line
US5061857A (en) * 1990-11-09 1991-10-29 The United States Of America As Represented By The Secretary Of The Navy Waveguide-binding sensor for use with assays
US5119825A (en) * 1991-02-25 1992-06-09 Medical Graphics Corporation Multi-functional patient valve
US5343818A (en) * 1991-03-05 1994-09-06 Sensormedics Corp. Photoplethysmographics using energy-reducing waveform shaping
US5093837A (en) * 1991-03-08 1992-03-03 S-Tron Baffle for attenuating off-axis light emissions
DE4122572A1 (de) * 1991-07-08 1993-01-14 Draegerwerk Ag Verfahren zum betrieb einer laserdiode
US5267019A (en) * 1991-09-30 1993-11-30 Consortium For Surface Processing, Inc. Method and apparatus for reducing fringe interference in laser spectroscopy
US5307794A (en) * 1992-04-01 1994-05-03 Sensormedics Corporation Oscillating ventilator apparatus and method and patient isolation apparatus
US5305762A (en) * 1992-09-21 1994-04-26 Medical Graphics Corporation Patient valve incorporating one-way check valves for infection control
US5303712A (en) * 1993-01-25 1994-04-19 Medical Graphics Corporation Calibration method for single-breath carbon monoxide lung diffusing capacity test system
US5297558A (en) * 1993-03-12 1994-03-29 Medical Graphics Corporation Algorithm for prescribing an exercise regimen to enhance fat burning and cardiovascular fitness

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WO1994024528A1 (en) 1994-10-27
EP0729565A4 (de) 1998-01-28
EP0729565B1 (de) 2003-03-26
US5491341A (en) 1996-02-13
EP0729565A1 (de) 1996-09-04
DE69432355T2 (de) 2003-12-24
US6150661A (en) 2000-11-21
US5448071A (en) 1995-09-05

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