DE29923125U1 - Device for the calibration of non-dispersive infrared spectrometers - Google Patents

Device for the calibration of non-dispersive infrared spectrometers

Info

Publication number
DE29923125U1
DE29923125U1 DE29923125U DE29923125U DE29923125U1 DE 29923125 U1 DE29923125 U1 DE 29923125U1 DE 29923125 U DE29923125 U DE 29923125U DE 29923125 U DE29923125 U DE 29923125U DE 29923125 U1 DE29923125 U1 DE 29923125U1
Authority
DE
Germany
Prior art keywords
calibration
axis
dispersive infrared
infrared spectrometers
distance
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
DE29923125U
Other languages
German (de)
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.)
FISCHER ANALYSEN INSTR GmbH
Original Assignee
FISCHER ANALYSEN INSTR GmbH
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 FISCHER ANALYSEN INSTR GmbH filed Critical FISCHER ANALYSEN INSTR GmbH
Priority to DE29923125U priority Critical patent/DE29923125U1/en
Priority claimed from DE19949212A external-priority patent/DE19949212A1/en
Publication of DE29923125U1 publication Critical patent/DE29923125U1/en
Priority to PCT/DE2000/003577 priority patent/WO2001027594A2/en
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
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/083—Measuring rate of metabolism by using breath test, e.g. measuring rate of oxygen consumption
    • A61B5/0836—Measuring rate of CO2 production
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/40—Respiratory characteristics
    • A61M2230/43—Composition of exhalation
    • A61M2230/432—Composition of exhalation partial CO2 pressure (P-CO2)
    • 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
    • G01N21/59—Transmissivity
    • G01N21/61—Non-dispersive gas analysers

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (2)

1. Vorrichtung zur Kalibrierung nichtdispersiver Infrarotspektrometer zur Messung von 12CO2/13CO2-Verhältnissen in Atemgasen mit Hilfe von in der Phase der Kalibrierung in den Strahlengang zu rückenden, mit Gasgemischen bekannter stofflicher und isotopischer Zusammensetzung gefüllten Kalibrierküvetten, dadurch gekennzeichnet, daß die Kalibrierküvetten (3) in einer zylindrischen oder prismatischen, um eine parallel zur Richtung des Infrarotstrahls orientierte Achse (2) drehbaren Trommel (1) montiert sind und diese Achse in einem Abstand, welcher dem Abstand der Achse von dem Infrarotstrahl entspricht, umgeben.1. A device characterized characterized for calibrating the non-dispersive infrared spectrometer for measuring 12 CO 2/13 CO 2 ratios in respiratory gases by means of filled in the phase of the calibration in the beam path for advancing, known with gas mixtures of material and isotopic composition of calibration cells that Calibration cuvettes ( 3 ) are mounted in a cylindrical or prismatic drum ( 1 ) which can be rotated about an axis ( 2 ) oriented parallel to the direction of the infrared beam and surround this axis at a distance which corresponds to the distance of the axis from the infrared beam. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die drehbare Trommel (1) in denjenigen Stellungen, bei denen sich eine der Kalibrierküvetten (3) im Strahlengang befindet, arretiert werden kann.2. Device according to claim 1, characterized in that the rotatable drum ( 1 ) can be locked in those positions in which one of the calibration cells ( 3 ) is in the beam path.
DE29923125U 1999-10-13 1999-10-13 Device for the calibration of non-dispersive infrared spectrometers Expired - Lifetime DE29923125U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE29923125U DE29923125U1 (en) 1999-10-13 1999-10-13 Device for the calibration of non-dispersive infrared spectrometers
PCT/DE2000/003577 WO2001027594A2 (en) 1999-10-13 2000-10-11 Method for calibrating non-dispersive infrared spectrometers for measuring 13c/12c ratios in respiratory gases

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29923125U DE29923125U1 (en) 1999-10-13 1999-10-13 Device for the calibration of non-dispersive infrared spectrometers
DE19949212A DE19949212A1 (en) 1999-10-13 1999-10-13 Calibration apparatus for non-dispersive infra red spectrometer for gas ratio measurements in inhalation gases has rotating drum fitted with filled calibration vessels to be positioned and locked in infra red beam path

Publications (1)

Publication Number Publication Date
DE29923125U1 true DE29923125U1 (en) 2000-06-29

Family

ID=26055257

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29923125U Expired - Lifetime DE29923125U1 (en) 1999-10-13 1999-10-13 Device for the calibration of non-dispersive infrared spectrometers

Country Status (2)

Country Link
DE (1) DE29923125U1 (en)
WO (1) WO2001027594A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004031643A1 (en) * 2004-06-30 2006-02-02 Abb Patent Gmbh Non-dispersive infrared gas analyzer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714903A1 (en) * 1997-04-10 1998-10-29 Hartmann & Braun Gmbh & Co Kg Calibration process for non-dispersive infra-red spectrometers
DE19731889A1 (en) * 1997-07-24 1999-01-28 Fischer Analysen Instr Gmbh Calibration of gas analysis equipment measuring isotopic proportions and concentration of e.g. carbon di:oxide
DE19735599A1 (en) * 1997-08-15 1999-03-04 Peter Prof Dr Hering Nondispersive infrared spectrometer

Also Published As

Publication number Publication date
WO2001027594A3 (en) 2001-12-27
WO2001027594A2 (en) 2001-04-19

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20000803

R150 Term of protection extended to 6 years

Effective date: 20021202

R151 Term of protection extended to 8 years

Effective date: 20051103

R152 Term of protection extended to 10 years

Effective date: 20071015

R071 Expiry of right