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MA57945A1 - Automatically regulated gas sensor - Google Patents

Automatically regulated gas sensor

Info

Publication number
MA57945A1
MA57945A1 MA57945A MA57945A MA57945A1 MA 57945 A1 MA57945 A1 MA 57945A1 MA 57945 A MA57945 A MA 57945A MA 57945 A MA57945 A MA 57945A MA 57945 A1 MA57945 A1 MA 57945A1
Authority
MA
Morocco
Prior art keywords
gas sensor
isolated
automatically regulated
regulated gas
materials
Prior art date
Application number
MA57945A
Other languages
French (fr)
Other versions
MA57945B1 (en
Inventor
Ayoub Lahlalia
EL KAMOUNY Khadija
Original Assignee
Mascir Moroccan Foundation For Advanced Science Innovation & Res
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 Mascir Moroccan Foundation For Advanced Science Innovation & Res filed Critical Mascir Moroccan Foundation For Advanced Science Innovation & Res
Priority to MA57945A priority Critical patent/MA57945B1/en
Priority to PCT/MA2023/050005 priority patent/WO2024072199A1/en
Publication of MA57945A1 publication Critical patent/MA57945A1/en
Publication of MA57945B1 publication Critical patent/MA57945B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/128—Microapparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/227—Sensors changing capacitance upon adsorption or absorption of fluid components, e.g. electrolyte-insulator-semiconductor sensors, MOS capacitors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0006—Calibrating gas analysers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/004—CO or CO2
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/0047—Organic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • Power Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

La présente divulgation concerne les capteurs de gaz à base de matériaux d'oxyde métallique semiconducteur (smo) comprenant un micro-élément chauffant. Elle divulgue un mécanisme permettant de corriger automatiquement la dérive de la ligne de base. Le capteur de gaz miniaturisé comprend deux couches à double-étage de matériaux sensibles en film mince. L'une est projetée directement dans l'environnement pour surveiller la qualité de l'air. L'autre est encapsulée dans la cavité du capteur de gaz, isolée de l'air ambiant. L'auto-calibrage du capteur de gaz est basé sur le changement des propriétés électriques du matériau sensible isolé.The present disclosure relates to gas sensors based on metal oxide semiconductor (smo) materials comprising a microheating element. It discloses a mechanism for automatically correcting baseline drift. The miniaturized gas sensor comprises two double-decker layers of sensitive thin film materials. One is projected directly into the environment to monitor air quality. The other is encapsulated in the gas sensor cavity, isolated from ambient air. Self-calibration of the gas sensor is based on the change in the electrical properties of the isolated sensitive material.

MA57945A 2022-09-30 2022-09-30 Self-regulating gas sensor MA57945B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MA57945A MA57945B1 (en) 2022-09-30 2022-09-30 Self-regulating gas sensor
PCT/MA2023/050005 WO2024072199A1 (en) 2022-09-30 2023-04-06 Self-regulating gas sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MA57945A MA57945B1 (en) 2022-09-30 2022-09-30 Self-regulating gas sensor

Publications (2)

Publication Number Publication Date
MA57945A1 true MA57945A1 (en) 2024-03-29
MA57945B1 MA57945B1 (en) 2024-06-28

Family

ID=86332412

Family Applications (1)

Application Number Title Priority Date Filing Date
MA57945A MA57945B1 (en) 2022-09-30 2022-09-30 Self-regulating gas sensor

Country Status (2)

Country Link
MA (1) MA57945B1 (en)
WO (1) WO2024072199A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9306594D0 (en) * 1993-03-30 1993-05-26 Univ Keele Sensor
EP2808675A1 (en) * 2013-05-31 2014-12-03 Sensirion AG Integrated metal oxide chemical sensor
US9810653B2 (en) * 2014-07-17 2017-11-07 Stmicroelectronics Pte Ltd Integrated SMO gas sensor module
US10429330B2 (en) * 2016-07-18 2019-10-01 Stmicroelectronics Pte Ltd Gas analyzer that detects gases, humidity, and temperature
DE102016222243A1 (en) * 2016-11-14 2018-05-17 Robert Bosch Gmbh gas sensor
EP3382380B1 (en) * 2017-03-31 2020-04-29 Sensirion AG Sensor and sensing method for measuring a target gas concentration in ambient air
EP3203229B1 (en) 2017-04-06 2020-03-18 Sensirion AG Calibrating a gas sensor
WO2018206385A1 (en) * 2017-05-08 2018-11-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Calibration method, the use thereof, and apparatus for carrying out the method
FR3113948A1 (en) 2020-09-06 2022-03-11 Elichens Gas sensor calibration process

Also Published As

Publication number Publication date
WO2024072199A1 (en) 2024-04-04
MA57945B1 (en) 2024-06-28

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