WO2002073176A3 - Capteur de detection de gaz - Google Patents

Capteur de detection de gaz Download PDF

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Publication number
WO2002073176A3
WO2002073176A3 PCT/DE2002/000799 DE0200799W WO02073176A3 WO 2002073176 A3 WO2002073176 A3 WO 2002073176A3 DE 0200799 W DE0200799 W DE 0200799W WO 02073176 A3 WO02073176 A3 WO 02073176A3
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
sensor element
signal
detecting gas
temp2
Prior art date
Application number
PCT/DE2002/000799
Other languages
German (de)
English (en)
Other versions
WO2002073176A2 (fr
Inventor
Michael Bauer
Isolde Simon
Christian Krummel
Original Assignee
Bosch Gmbh Robert
Michael Bauer
Isolde Simon
Christian Krummel
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 Bosch Gmbh Robert, Michael Bauer, Isolde Simon, Christian Krummel filed Critical Bosch Gmbh Robert
Priority to EP02727198A priority Critical patent/EP1370853A2/fr
Publication of WO2002073176A2 publication Critical patent/WO2002073176A2/fr
Publication of WO2002073176A3 publication Critical patent/WO2002073176A3/fr

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
    • G01N27/122—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (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

L'invention concerne un capteur de détection de gaz. Selon l'invention, une évaluation de signal (23) émet un signal de sortie (24), et un facteur de pondération est défini pour au moins deux types de gaz appliqués à l'élément capteur (16). Par ailleurs, un chauffage de capteur (15) effectue une modification de température (temp1, temp2) de l'élément capteur (16) dans un premier intervalle de temps (I1) inférieur au temps requis par l'élément capteur (16) pour créer un équilibre chimique, l'élément capteur (16) étant au moins approximativement en équilibre thermique. L'évaluation de signal (23) évalue une caractéristique temporelle du signal de capteur après la modification de température (temp1, temp2), le signal de capteur (S) étant au moins partiellement situé dans un deuxième intervalle de temps (I2) dans lequel l'équilibre chimique de l'élément capteur (16) n'est pas créé.
PCT/DE2002/000799 2001-03-09 2002-03-05 Capteur de detection de gaz WO2002073176A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02727198A EP1370853A2 (fr) 2001-03-09 2002-03-05 Capteur de detection de gaz

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001111269 DE10111269A1 (de) 2001-03-09 2001-03-09 Sensor zur Detektion von Gasen
DE10111269.6 2001-03-09

Publications (2)

Publication Number Publication Date
WO2002073176A2 WO2002073176A2 (fr) 2002-09-19
WO2002073176A3 true WO2002073176A3 (fr) 2003-10-02

Family

ID=7676796

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/000799 WO2002073176A2 (fr) 2001-03-09 2002-03-05 Capteur de detection de gaz

Country Status (3)

Country Link
EP (1) EP1370853A2 (fr)
DE (1) DE10111269A1 (fr)
WO (1) WO2002073176A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10255703A1 (de) * 2002-11-29 2004-07-01 Robert Bosch Gmbh Schaltungsanordnung zum Betreiben eines Sensors mit einem Heizelement
US7803039B2 (en) * 2004-06-18 2010-09-28 Denso Corporation Method of controlling air intake into air conditioned enclosure
DE102007057500A1 (de) * 2007-11-29 2009-06-10 Siemens Ag Gassensorelement
US8449817B2 (en) 2010-06-30 2013-05-28 H.C. Stark, Inc. Molybdenum-containing targets comprising three metal elements
GB2499842A (en) * 2012-03-02 2013-09-04 Crowcon Detection Instr Ltd Temperature regulated multiple gas sensor
DE102012210525A1 (de) * 2012-06-21 2013-12-24 Robert Bosch Gmbh Verfahren zur Funktionskontrolle eines Sensors zur Detektion von Teilchen und Sensor zur Detektion von Teilchen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03185351A (ja) * 1989-12-14 1991-08-13 Figaro Eng Inc ガス検出方法
EP0775912A1 (fr) * 1995-11-21 1997-05-28 I.T.V.I. International Techno Venture Invest Ag Appareil et procédé pour déterminer des concentrations absolues de gaz en utilisant des capteurs de gaz semi-conducteurs
DE19959925A1 (de) * 1999-12-11 2001-06-21 Daimler Chrysler Ag Verfahren zur Bestimmung von Gaskonzentrationen mit einem Dünnschicht-Halbleiter-Gassensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03185351A (ja) * 1989-12-14 1991-08-13 Figaro Eng Inc ガス検出方法
EP0775912A1 (fr) * 1995-11-21 1997-05-28 I.T.V.I. International Techno Venture Invest Ag Appareil et procédé pour déterminer des concentrations absolues de gaz en utilisant des capteurs de gaz semi-conducteurs
DE19959925A1 (de) * 1999-12-11 2001-06-21 Daimler Chrysler Ag Verfahren zur Bestimmung von Gaskonzentrationen mit einem Dünnschicht-Halbleiter-Gassensor

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CAVICCHI R E ET AL: "Fast temperature programmed sensing for micro-hotplate gas sensors", IEEE ELECTRON DEVICE LETTERS, vol. 16, no. 6, 1 June 1995 (1995-06-01), ISSN 0741-3106, pages 286 - 288, XP000514732 *
CAVICCHI R E ET AL: "Optimized temperature-pulse sequences for the enhancement of chemically specific respone patterns from micro-hotplate gas sensors", SENSORS AND ACTUATORS B, vol. B33, no. 1/3, 1 July 1996 (1996-07-01), ISSN 0925-4005, pages 142 - 145, XP000632932 *
PATENT ABSTRACTS OF JAPAN vol. 15, no. 439 (P - 1273) 8 November 1991 (1991-11-08) *

Also Published As

Publication number Publication date
DE10111269A1 (de) 2002-09-12
WO2002073176A2 (fr) 2002-09-19
EP1370853A2 (fr) 2003-12-17

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