DE20004514U1 - Electrochemical sensor - Google Patents

Electrochemical sensor

Info

Publication number
DE20004514U1
DE20004514U1 DE20004514U DE20004514U DE20004514U1 DE 20004514 U1 DE20004514 U1 DE 20004514U1 DE 20004514 U DE20004514 U DE 20004514U DE 20004514 U DE20004514 U DE 20004514U DE 20004514 U1 DE20004514 U1 DE 20004514U1
Authority
DE
Germany
Prior art keywords
protective tube
sensor according
fiber material
sensor
ceramic fiber
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
DE20004514U
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE20004514U priority Critical patent/DE20004514U1/en
Priority to PCT/DE2001/000079 priority patent/WO2001067082A1/en
Publication of DE20004514U1 publication Critical patent/DE20004514U1/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
    • 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
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • G01N27/4077—Means for protecting the electrolyte or the electrodes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)

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 (6)

1. Elektrochemischer Meßfühler zur Bestimmung von Gaskomponenten und/oder Gaskonzentrationen in Gasgemischen mit einem Sensorelement, das von einem Schutzrohr umgeben ist, das den Zutritt eines Meßgases zum Sensorelement erlaubt, wobei sich im Schutzrohr ein keramisches Fasermaterial befindet, dadurch gekennzeichnet, daß das keramische Fasermaterial (21) beabstandet vom Sensorelement (20) im Schutzrohr (22) angeordnet ist.1. Electrochemical sensor for determining gas components and / or gas concentrations in gas mixtures with a sensor element which is surrounded by a protective tube that allows access of a measuring gas to the sensor element, wherein a ceramic fiber material is located in the protective tube, characterized in that the ceramic fiber material ( 21 ) is arranged at a distance from the sensor element ( 20 ) in the protective tube ( 22 ). 2. Meßfühler nach Anspruch 1, dadurch gekennzeichnet, daß das Schutzrohr (22) zumindest bereichsweise doppelwandig ausgeführt ist und daß das keramische Fasermaterial (21) zumindest im Bereich von Zu- und Ausströmöffnungen (24) zwischen den beiden Wänden des Schutzrohres (22) angeordnet ist.2. Sensor according to claim 1, characterized in that the protective tube ( 22 ) is at least partially double-walled and that the ceramic fiber material ( 21 ) is arranged at least in the area of inflow and outflow openings ( 24 ) between the two walls of the protective tube ( 22 ) is. 3. Meßfühler nach Anspruch 2, dadurch gekennzeichnet, daß im Bereich der Zu- und Ausströmöffnungen (24) das Schutzrohr doppelwandig ausgebildet ist. 3. Sensor according to claim 2, characterized in that in the region of the inflow and outflow openings ( 24 ) the protective tube is double-walled. 4. Meßfühler nach Anspruch 1, dadurch gekennzeichnet, daß das keramische Fasermaterial (21) Fasern aus Al2O3 und/oder ZrO2 aufweist.4. Sensor according to claim 1, characterized in that the ceramic fiber material ( 21 ) comprises fibers made of Al 2 O 3 and / or ZrO 2 . 5. Meßfühler nach Anspruch 1, dadurch gekennzeichnet, daß die keramischen Fasern eine Dicke von 2 bis 5 µm haben.5. Sensor according to claim 1, characterized in that the ceramic fibers have a thickness of 2 to 5 µm. 6. Meßfühler nach Anspruch 1, dadurch gekennzeichnet, daß die keramischen Fasern eine Länge von größer oder gleich 1 mm aufweisen.6. Sensor according to claim 1, characterized in that the ceramic fibers have a length greater than or equal to 1 mm.
DE20004514U 2000-03-10 2000-03-10 Electrochemical sensor Expired - Lifetime DE20004514U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE20004514U DE20004514U1 (en) 2000-03-10 2000-03-10 Electrochemical sensor
PCT/DE2001/000079 WO2001067082A1 (en) 2000-03-10 2001-01-11 Electrochemical detecting element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20004514U DE20004514U1 (en) 2000-03-10 2000-03-10 Electrochemical sensor

Publications (1)

Publication Number Publication Date
DE20004514U1 true DE20004514U1 (en) 2001-07-26

Family

ID=7938611

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20004514U Expired - Lifetime DE20004514U1 (en) 2000-03-10 2000-03-10 Electrochemical sensor

Country Status (2)

Country Link
DE (1) DE20004514U1 (en)
WO (1) WO2001067082A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005090956A1 (en) * 2004-03-17 2005-09-29 Robert Bosch Gmbh Sensor for determining the oxygen concentration in the exhaust gas of internal combustion engines
DE102004053460A1 (en) * 2004-11-05 2006-05-11 Emitec Gesellschaft Für Emissionstechnologie Mbh Protective element for a sensor, as well as appropriate sensor and honeycomb body
WO2008074545A1 (en) * 2006-12-20 2008-06-26 Robert Bosch Gmbh Gas sensor
WO2008122340A1 (en) * 2007-04-10 2008-10-16 Bayerische Motoren Werke Aktiengesellschaft Gas sensor containing a protective cap
DE102008000463A1 (en) 2008-02-29 2009-09-03 Robert Bosch Gmbh exhaust gas sensor
DE102013204943A1 (en) * 2013-03-20 2014-09-25 Continental Automotive Gmbh Sensor for detecting a gas content
DE102013221270A1 (en) 2013-10-21 2015-04-23 Robert Bosch Gmbh Sensor device for detecting at least one property of a fluid medium
DE102013221262A1 (en) 2013-10-21 2015-04-23 Robert Bosch Gmbh Sensor device for detecting at least one property of a fluid medium
DE102013221260A1 (en) 2013-10-21 2015-04-23 Robert Bosch Gmbh Sensor device for detecting at least one property of a fluid medium

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004027633A1 (en) * 2004-06-05 2006-01-05 Robert Bosch Gmbh Sensor for determining the oxygen concentration in the exhaust gas of internal combustion engines
US20130031952A1 (en) * 2011-08-03 2013-02-07 Robert Bosch Gmbh Gas sensor with thermal shock protection
US9297791B2 (en) 2012-12-20 2016-03-29 Robert Bosch Gmbh Gas sensor with thermal shock protection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3615960A1 (en) * 1985-05-13 1986-11-27 Toyota Motor Co Ltd SENSOR FOR DETERMINING A AIR-FUEL RATIO
JPS63286760A (en) * 1987-05-19 1988-11-24 Osaka Oxygen Ind Ltd Composite probe for measuring concentration of impurity element in molten iron
US5762771A (en) * 1996-02-06 1998-06-09 Denso Corporation Air-fuel ratio sensor

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005090956A1 (en) * 2004-03-17 2005-09-29 Robert Bosch Gmbh Sensor for determining the oxygen concentration in the exhaust gas of internal combustion engines
US7537383B2 (en) 2004-11-05 2009-05-26 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Protective element for a measuring probe and corresponding measuring probe, honeycomb body and motor vehicle
DE102004053460A1 (en) * 2004-11-05 2006-05-11 Emitec Gesellschaft Für Emissionstechnologie Mbh Protective element for a sensor, as well as appropriate sensor and honeycomb body
WO2008074545A1 (en) * 2006-12-20 2008-06-26 Robert Bosch Gmbh Gas sensor
US8061183B2 (en) 2007-04-10 2011-11-22 Bayerische Motoren Werke Aktiengesellschaft Protective cap for a gas sensor, and a gas sensor
WO2008122340A1 (en) * 2007-04-10 2008-10-16 Bayerische Motoren Werke Aktiengesellschaft Gas sensor containing a protective cap
DE102007016976B4 (en) 2007-04-10 2021-07-29 Bayerische Motoren Werke Aktiengesellschaft Protective cap for a gas sensor and gas sensor
DE102008000463A1 (en) 2008-02-29 2009-09-03 Robert Bosch Gmbh exhaust gas sensor
US8176767B2 (en) 2008-02-29 2012-05-15 Robert Bosch Gmbh Exhaust gas sensor
DE102013204943A1 (en) * 2013-03-20 2014-09-25 Continental Automotive Gmbh Sensor for detecting a gas content
DE102013221270A1 (en) 2013-10-21 2015-04-23 Robert Bosch Gmbh Sensor device for detecting at least one property of a fluid medium
DE102013221262A1 (en) 2013-10-21 2015-04-23 Robert Bosch Gmbh Sensor device for detecting at least one property of a fluid medium
DE102013221260A1 (en) 2013-10-21 2015-04-23 Robert Bosch Gmbh Sensor device for detecting at least one property of a fluid medium
CN104569302A (en) * 2013-10-21 2015-04-29 罗伯特·博世有限公司 Sensor device for detecting at least one property of a fluid medium
CN104569302B (en) * 2013-10-21 2018-10-26 罗伯特·博世有限公司 Sensor device at least one characteristic for detecting fluid media (medium)

Also Published As

Publication number Publication date
WO2001067082A1 (en) 2001-09-13

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20010830

R150 Term of protection extended to 6 years

Effective date: 20030514

R151 Term of protection extended to 8 years

Effective date: 20060530

R158 Lapse of ip right after 8 years

Effective date: 20081001