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WO2009068455A3 - Measuring ambient temperature using a gas sensor element - Google Patents

Measuring ambient temperature using a gas sensor element Download PDF

Info

Publication number
WO2009068455A3
WO2009068455A3 PCT/EP2008/065711 EP2008065711W WO2009068455A3 WO 2009068455 A3 WO2009068455 A3 WO 2009068455A3 EP 2008065711 W EP2008065711 W EP 2008065711W WO 2009068455 A3 WO2009068455 A3 WO 2009068455A3
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
ambient temperature
gas sensor
sensor element
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.)
Ceased
Application number
PCT/EP2008/065711
Other languages
German (de)
French (fr)
Other versions
WO2009068455A2 (en
Inventor
Peter Stahl
Maximilian Fleischer
Ulrich Hoefer
Markus Loepfe
Roland Pohle
Elfriede Simon
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2009068455A2 publication Critical patent/WO2009068455A2/en
Publication of WO2009068455A3 publication Critical patent/WO2009068455A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/005—Circuits arrangements for indicating a predetermined temperature
    • 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
    • G01N27/122—Circuits particularly adapted therefor, e.g. linearising circuits
    • G01N27/123—Circuits particularly adapted therefor, e.g. linearising circuits for controlling the temperature
    • G01N27/124—Circuits particularly adapted therefor, e.g. linearising circuits for controlling the temperature varying the temperature, e.g. in a cyclic manner
    • 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
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/414—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS
    • G01N27/4141—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS specially adapted for gases
    • G01N27/4143—Air gap between gate and channel, i.e. suspended gate [SG] FETs

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Molecular Biology (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

It is proposed to construct a fire detector (14) from a gas sensor (6) on a micromechanically produced low-power substrate (1). The gas sensor is operated in the thermopulse method, wherein short heating phases and longer cold phases alternate. In the cold phases the heating resistor (4) of the sensor can be used as a sensor for the ambient temperature. The thus constructed gas sensor enables the detection of the ambient temperature as a fire characteristic simultaneously with gas measurements, without a dedicated temperature sensor being necessary for this purpose. The invention also relates to an air quality sensor which operates in an analogous manner.
PCT/EP2008/065711 2007-11-29 2008-11-18 Measuring ambient temperature using a gas sensor element Ceased WO2009068455A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710057520 DE102007057520A1 (en) 2007-11-29 2007-11-29 Measurement of the ambient temperature with a gas sensor element
DE102007057520.5 2007-11-29

Publications (2)

Publication Number Publication Date
WO2009068455A2 WO2009068455A2 (en) 2009-06-04
WO2009068455A3 true WO2009068455A3 (en) 2009-07-16

Family

ID=40328322

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/065711 Ceased WO2009068455A2 (en) 2007-11-29 2008-11-18 Measuring ambient temperature using a gas sensor element

Country Status (2)

Country Link
DE (1) DE102007057520A1 (en)
WO (1) WO2009068455A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2446414A (en) * 2007-02-06 2008-08-13 Thorn Security A Detector
EP2336762B1 (en) * 2009-12-14 2017-10-18 Siemens Aktiengesellschaft Carbon dioxide sensor and method for generating measured gas values
US10852233B2 (en) 2016-06-15 2020-12-01 Kidde Technologies, Inc. Systems and methods for chamberless smoke detection and indoor air quality monitoring
US10871452B2 (en) 2016-06-15 2020-12-22 Kidde Technologies, Inc. Systems and methods for chamberless smoke detection and indoor air quality monitoring
US10339778B1 (en) 2018-01-15 2019-07-02 Kidde Technologies, Inc. Chamberless air quality monitors with temperature sensing
DE102024109032A1 (en) * 2024-03-28 2025-10-02 Dryad Networks GmbH Method and device for early detection of a forest fire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8219821U1 (en) * 1982-07-10 1987-02-12 Barlian, Reinhold, Dipl.-Ing.(FH), 6990 Bad Mergentheim Monitoring device
US5856780A (en) * 1991-10-24 1999-01-05 Capteur Sensors & Analysers, Ltd. Semiconductor sensors and method for detecting fires using such sensors

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004013678A1 (en) * 2004-03-18 2005-10-20 Micronas Gmbh Device for detecting a gas or gas mixture
DE102005008051A1 (en) * 2005-02-22 2006-08-24 Siemens Ag Gas sensor with field effect transistor, has porous gas sensitive layer directly applied to insulation of FET located directly above channel region

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8219821U1 (en) * 1982-07-10 1987-02-12 Barlian, Reinhold, Dipl.-Ing.(FH), 6990 Bad Mergentheim Monitoring device
US5856780A (en) * 1991-10-24 1999-01-05 Capteur Sensors & Analysers, Ltd. Semiconductor sensors and method for detecting fires using such sensors

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DANICK BRIAND ET AL: "Thermally Isolated MOSFET for Gas Sending Application", IEEE ELECTRON DEVICE LETTERS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 22, no. 1, 1 January 2001 (2001-01-01), XP011018888, ISSN: 0741-3106 *
QU W ET AL: "A thin-film sensing element for ozone, humidity and temperature", SENSORS AND ACTUATORS B, ELSEVIER SEQUOIA S.A., LAUSANNE, CH, vol. 64, no. 1-3, 1 June 2000 (2000-06-01), pages 42 - 48, XP004199283, ISSN: 0925-4005 *

Also Published As

Publication number Publication date
DE102007057520A1 (en) 2009-06-04
WO2009068455A2 (en) 2009-06-04

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