KR900702364A - Sensor element for limiting current sensor that determines lambda value of mixed gas - Google Patents

Sensor element for limiting current sensor that determines lambda value of mixed gas

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Publication number
KR900702364A
KR900702364A KR1019900701256A KR900701256A KR900702364A KR 900702364 A KR900702364 A KR 900702364A KR 1019900701256 A KR1019900701256 A KR 1019900701256A KR 900701256 A KR900701256 A KR 900701256A KR 900702364 A KR900702364 A KR 900702364A
Authority
KR
South Korea
Prior art keywords
sensor element
solid electrolyte
carrier
printed
diffusion gap
Prior art date
Application number
KR1019900701256A
Other languages
Korean (ko)
Inventor
디츠 헤르만
그륀발트 베르너
데 라 프리에타 클라우디오
Original Assignee
랄프 베렌스, 페터뢰저
로베르트 보쉬 게엠베하
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 랄프 베렌스, 페터뢰저, 로베르트 보쉬 게엠베하 filed Critical 랄프 베렌스, 페터뢰저
Publication of KR900702364A publication Critical patent/KR900702364A/en

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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
    • G01N27/4071—Cells and probes with solid electrolytes for investigating or analysing gases using sensor elements of laminated structure
    • 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
    • G01N27/416—Systems
    • G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • 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
    • G01N27/4071—Cells and probes with solid electrolytes for investigating or analysing gases using sensor elements of laminated structure
    • G01N27/4072—Cells and probes with solid electrolytes for investigating or analysing gases using sensor elements of laminated structure characterized by the diffusion barrier

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

Abstract

내용 없음No content

Description

혼합 가스의 λ값을 결정하는 제한 전류 센서용 센서 소자Sensor element for limiting current sensor that determines lambda value of mixed gas

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 직사각형 전극을 가진 본 발명에 따른 센서 소자의 제1실시예의 전극 부분의 선단면도, 제2도는 제1도에 도시한 전극을 가진 센소 소자의 적층을 도시한 도시로, 제3도는 중심 테스트 가스 출입구 둘레에 환형 배열된 전극이 있는 본 발명에 따른 센서 소자의 제2실시예의 전극 부분의 선단면도.Fig. 1 is a front sectional view of the electrode portion of the first embodiment of the sensor element according to the present invention having a rectangular electrode, Fig. 2 is a view showing the lamination of the sensor element having the electrode shown in Fig. 1, Sectional view of the electrode portion of the second embodiment of the sensor element according to the present invention having an annularly arranged electrode around the test gas outlet.

Claims (12)

O2-이온을 도전하는 고체 전해물에 배치된 외,내부 펌프 전극을 가지며, 그 전극중, 내부 펌프 전극을 확산갭을 통해 보급된 테스트 가스에 접근할 수 있으며 확산갭은 고체 전해물에 의해 커버되며, 또한 펌프 전극을 위해 도체 트랙을 가지는, 혼합 가스 특히, 내연 엔진의 배기 가스의 λ값을 결저하기 위한 제한 전류 센서용 센서 소자에 있어서, 확산캡용 커버링을 형성하는 고체 전해물은 세라믹 캐리어상의 프린트에 의한 스크린 프린팅 기법으로 만들어지는 고체 전해물층인 것을 특징으로 하는 제한 전류 전류 센서용 센서 소자.O 2 - ions and has an inner pump electrode, of which the inner pump electrode is accessible to the test gas replenished via the diffusion gap and the diffusion gap is covered by the solid electrolyte , And a conductor track for the pump electrode, the solid electrolyte forming the covering cap for the diffusion cap, in particular for the sensor element for limiting current sensors for deflecting the lambda value of the exhaust gas of the internal combustion engine, Wherein the sensor element is a solid electrolyte layer made by a screen printing technique. 제1항에 있어서, 고체 전해물층은 Y2O3로 안정된 ZrO2인 것을 특징으로 하는 센서 소자.The sensor element according to claim 1, wherein the solid electrolyte layer is ZrO 2 stable with Y 2 O 3 . 제1항 또는 제2항에 있어서, 고체 전해물층의 층 두께는 10-100㎛인 것을 특징으로 하는 센서 소자.3. The sensor element according to claim 1 or 2, wherein the layer thickness of the solid electrolyte layer is 10-100 mu m. 제1항 내지 제3항중 어느 한항에 있어서, 확산갭은 Al2O3혹은 ZrO2가 베이스인 조대한 다공성 신터링된 재료인 것을 특징으로 하는 센서 소자.The sensor element according to any one of claims 1 to 3, wherein the diffusion gap is a coarse porous sintered material on which Al 2 O 3 or ZrO 2 is based. 제1항 내지 제4항중 어느 한항에 있어서, 펌프 전극은 중앙 테스트 가스 출입구 둘레에 환형으로 배치된 것을 특징으로 하는 센서 소자.5. Sensor element according to any one of claims 1 to 4, characterized in that the pump electrodes are annularly arranged around the central test gas outlet. 제1항 내지 제5항중 어느 한항에 있어서, 캐리어는 ZrO2혹은 Al2O3세라믹 베이스를 가진 시트를 포함하는 것을 특징으로 하는 센서 소자.The sensor element according to any one of claims 1 to 5, characterized in that the carrier comprises a sheet having a ZrO 2 or Al 2 O 3 ceramic base. 제1항 내지 제6항중 어느 한항에 있어서, 확산갭의 형성용 재료, 그다음 도체 트랙과 연결된 내부 펌프전극, 내부 펌프 전극위의 가스 출입구를 가진 고체 전해물, 도체 트랙과 연결과 외부 퍼프 전극, 인고브 그리고 마지막으로 커버링은 스크린 프린팅 기법으로 신터링 안된 세라믹의 캐리어상에서 프린트되고, 프린트된 캐리어는 확산갭의 형성을 위해 신터링되는 것을 특징으로 하는 센서 소자의 제조 과정.7. A method according to any one of claims 1 to 6, characterized in that the material for forming a diffusion gap, then an internal pump electrode connected to a conductor track, a solid electrolyte with a gas inlet on the internal pump electrode, And finally the covering is printed on the carrier of the un-sintered ceramic by a screen printing technique, and the printed carrier is sintered for the formation of a diffusion gap. 제7항에 있어서, 신터링 과정에서 분해 혹은 연소하는 재료는 확산갭의 형성을 위해 캐리어상에서 프린트되는 것을 특징으로 하는 과정.8. The process of claim 7 wherein the material decomposed or burnt in the sintering process is printed on the carrier for the formation of a diffusion gap. 제7항에 있어서, 신터링 과정에서 다공성으로 신터링하는 재료는 확산갭의 형성을 위해 캐리어상에 프린트되는 것을 특징으로 하는 과정.8. The process of claim 7 wherein the porous sintering material in the sintering process is printed on a carrier for the formation of a diffusion gap. 제9항에 있어서, 재료는 필수적으로 미세히 세분된 Al2O3혹은 선택적으로 안정된 ZrO2및 기공 형성제의 혼합물을 포함하는 것으로 사용되어지는 것을 특징으로 하는 과정.10. The method of claim 9, wherein the material consists essentially of fine Hi refined Al 2 O 3 or ZrO 2 and optionally a stable laboratory procedures, characterized in that to be used as comprising a mixture of the formers. 제10항에 있어서, 신터링 과정동안 증발 혹은 연소하는 물질은 기공 형성제로써 사용되는 것을 특징으로하는 과정.11. The process of claim 10, wherein the material that evaporates or burns during the sintering process is used as a pore former. 제7항 내지 제11항에 있어서, 프린트된 캐리어는 1,340 내지 1,400℃의 온도에서 2 내지 6시간동안 가열에 의해 신터링된 것을 특징으로 하는 과정.12. Process according to claims 7 to 11, characterized in that the printed carrier is sintered by heating at a temperature of 1,340 to 1,400 DEG C for 2 to 6 hours. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019900701256A 1988-10-04 1989-10-03 Sensor element for limiting current sensor that determines lambda value of mixed gas KR900702364A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEP3834987.6 1988-10-04
DE3834987A DE3834987A1 (en) 1988-10-14 1988-10-14 SENSOR ELEMENT FOR LIMIT CURRENT SENSORS FOR DETERMINING THE (LAMBDA) VALUE OF GAS MIXTURES
PCT/DE1989/000625 WO1990004171A1 (en) 1988-10-14 1989-10-03 SENSOR ELEMENT FOR LIMIT CURRENT SENSOR FOR DETERMINING THE μ VALUE OF GAS MIXTURES

Publications (1)

Publication Number Publication Date
KR900702364A true KR900702364A (en) 1990-12-06

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Country Status (5)

Country Link
KR (1) KR900702364A (en)
AU (1) AU4328489A (en)
DE (1) DE3834987A1 (en)
ES (1) ES2016207A6 (en)
WO (1) WO1990004171A1 (en)

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Also Published As

Publication number Publication date
DE3834987C2 (en) 1991-11-21
DE3834987A1 (en) 1990-04-19
WO1990004171A1 (en) 1990-04-19
AU4328489A (en) 1990-05-01
ES2016207A6 (en) 1990-10-16

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