FR3127041B1 - Sensor and method for measuring gas concentrations in a gas mixture. - Google Patents

Sensor and method for measuring gas concentrations in a gas mixture. Download PDF

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Publication number
FR3127041B1
FR3127041B1 FR2109650A FR2109650A FR3127041B1 FR 3127041 B1 FR3127041 B1 FR 3127041B1 FR 2109650 A FR2109650 A FR 2109650A FR 2109650 A FR2109650 A FR 2109650A FR 3127041 B1 FR3127041 B1 FR 3127041B1
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France
Prior art keywords
gas
gas mixture
sensor
discharge tube
discharge
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.)
Active
Application number
FR2109650A
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French (fr)
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FR3127041A1 (en
Inventor
Catherine Bellet
Rafic Younes
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Partelec
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Partelec
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Publication date
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Priority to FR2109650A priority Critical patent/FR3127041B1/en
Publication of FR3127041A1 publication Critical patent/FR3127041A1/en
Application granted granted Critical
Publication of FR3127041B1 publication Critical patent/FR3127041B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
    • G01N21/67—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence using electric arcs or discharges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/027—Control of working procedures of a spectrometer; Failure detection; Bandwidth calculation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/2823—Imaging spectrometer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/443—Emission spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors

Abstract

Procédé (100) pour la mesure d’une concentration d’au moins un gaz dans un mélange gazeux en utilisant un dispositif (10) comprenant un tube à décharge (1), configuré pour recevoir le mélange gazeux et pour produire une décharge électrique, une pompe (5), configurée pour obtenir la pression déterminée dans le tube à décharge (1), un capteur d’image (2) configuré pour acquérir une image multi-spectrale comprenant un nombre K d’images mono-spectrales du tube à décharge (1) pendant la décharge électrique, le nombre K étant supérieur ou égal à 3, une unité de pilotage et de traitement configurée pour piloter le fonctionnement du dispositif (10) et pour traiter l’image acquise par le capteur d’image (2) et déterminer une concentration de l’au moins un gaz dans le mélange de gaz à partir d’une partie de l’image du tube à décharge (1). Figure 1Method (100) for measuring a concentration of at least one gas in a gas mixture using a device (10) comprising a discharge tube (1), configured to receive the gas mixture and to produce an electrical discharge, a pump (5), configured to obtain the pressure determined in the discharge tube (1), an image sensor (2) configured to acquire a multi-spectral image comprising a number K of mono-spectral images of the discharge tube discharge (1) during the electrical discharge, the number K being greater than or equal to 3, a control and processing unit configured to control the operation of the device (10) and to process the image acquired by the image sensor ( 2) and determining a concentration of the at least one gas in the gas mixture from a part of the image of the discharge tube (1). Figure 1

FR2109650A 2021-09-14 2021-09-14 Sensor and method for measuring gas concentrations in a gas mixture. Active FR3127041B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2109650A FR3127041B1 (en) 2021-09-14 2021-09-14 Sensor and method for measuring gas concentrations in a gas mixture.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2109650 2021-09-14
FR2109650A FR3127041B1 (en) 2021-09-14 2021-09-14 Sensor and method for measuring gas concentrations in a gas mixture.

Publications (2)

Publication Number Publication Date
FR3127041A1 FR3127041A1 (en) 2023-03-17
FR3127041B1 true FR3127041B1 (en) 2023-08-25

Family

ID=78049447

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2109650A Active FR3127041B1 (en) 2021-09-14 2021-09-14 Sensor and method for measuring gas concentrations in a gas mixture.

Country Status (1)

Country Link
FR (1) FR3127041B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4766318A (en) * 1986-05-27 1988-08-23 Spectral Sciences, Inc. Spark discharge trace element detection system
JP4944454B2 (en) * 2006-02-20 2012-05-30 大陽日酸株式会社 Nitrogen analyzer
JP5233131B2 (en) * 2007-02-23 2013-07-10 株式会社Ｉｈｉ Carburizing apparatus and carburizing method

Also Published As

Publication number Publication date
FR3127041A1 (en) 2023-03-17

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