KR880009273A - Oxygen concentration detector - Google Patents

Oxygen concentration detector Download PDF

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Publication number
KR880009273A
KR880009273A KR1019870015506A KR870015506A KR880009273A KR 880009273 A KR880009273 A KR 880009273A KR 1019870015506 A KR1019870015506 A KR 1019870015506A KR 870015506 A KR870015506 A KR 870015506A KR 880009273 A KR880009273 A KR 880009273A
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KR
South Korea
Prior art keywords
layer
oxygen concentration
metal oxide
concentration detector
oxygen
Prior art date
Application number
KR1019870015506A
Other languages
Korean (ko)
Inventor
가쓰요시 데라가도
사다야스 우에노
노리오 이찌가와
Original Assignee
미다 가쓰시게
가부시기 가이샤 히다찌 세이사꾸쇼
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 미다 가쓰시게, 가부시기 가이샤 히다찌 세이사꾸쇼 filed Critical 미다 가쓰시게
Publication of KR880009273A publication Critical patent/KR880009273A/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
    • 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
    • G01N27/4075—Composition or fabrication of the electrodes and coatings thereon, e.g. catalysts
    • 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

Abstract

내용 없음.No content.

Description

산소 농도 검출기Oxygen concentration detector

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (5)

산소 이온 전도성 금속산화물로 이루어진 고체전해질 소자의 표리면에 다공질의 박막상 전극을 설치하고, 상기 소자 표면전극을 닥공질 전기 절연성 금속산화물로 이루어진 가스확산 저항층으로 피복하고, 상기 양전극간에 일정 전압을 인가함으로써 상기 소자가 놓여진 분위기중의 산소이온을 상기 소자내부에 확산시켜 산소이온의 농도에 대한 한계전류치를 구함으로써 산소농도를 측징하는 한계 전류식 산소농도 검출로서, 상기 확산 저항층이 거칠은(성근)증과 대단히 치밀한 층외 적어도 2층 이상의 다중층으로 이루어진 것에 있어서, 거치른 층이 적합한 입도의 전기 절연성 금속 산화물을 사용한 플라즈마 용사법으로 형성되고, 대단히 치밀한 층이 졸·겔법에 의하여 형성된 전기 절연성 금속산화물층인 것을 특징으로 하는 산소 농도 검출기.A porous thin film electrode is installed on the front and back of the solid electrolyte device made of the oxygen ion conductive metal oxide, and the surface electrode is covered with a gas diffusion resistance layer made of a pseudo electrically insulating metal oxide, and a constant voltage is applied between the two electrodes. A limiting current type oxygen concentration detection for measuring oxygen concentration by applying oxygen ions in an atmosphere in which the device is placed to diffuse into the device to obtain a limit current value for the concentration of oxygen ions, wherein the diffusion resistance layer is rough ( Consisting of multiple layers of at least two layers in addition to extremely muscular and extremely dense layers, the passivated layer is formed by plasma spraying using an electrically insulating metal oxide of a suitable particle size, and the very dense layer is an electrically insulating metal oxide formed by a sol-gel method. Oxygen concentration detector, characterized in that the layer. 제1항에 있어서, 상기 플라즈마 용사법으로 형성되는 거치른 층의 두께가 10-500㎛이고, 상기 졸·겔 법으로 형성되는 대단히 치밀한 층의 두께가 0.01∼20㎛인 것을 특징으로 하는 산소농도 검출기.The oxygen concentration detector according to claim 1, wherein the thickness of the rough layer formed by the plasma spraying method is 10-500 µm, and the thickness of the very dense layer formed by the sol-gel method is 0.01-20 µm. 제1항 또는 제2항에 있어서, 상기 거치른 츠이외측 전극표면상에 플라즈마 용사법으로 먼저 형성되고, 이어서 상기 친밀한 층이 졸·겔 법에 의하여 그 외측에 형성된 것을 특징으로 하는 산소농도 검출기.3. An oxygen concentration detector according to claim 1 or 2, wherein said intimate layer is formed on the outer surface of said crosswise outer electrode first by a plasma spraying method, and then said intimate layer is formed outside thereof by a sol-gel method. 제1항 또는 제2항에 있어서, 상기 고체 전해질을 700℃로 가열한 상태에서, 상기 전극에 인가하는 전압에 대한 공연비(λ)의 변화특성이 λ=0.6이상의 범위에 있어서 소정의 선형 비례특성을 나타내도록 조정된 산소농도 검출기.The predetermined linear proportional characteristic according to claim 1 or 2, wherein a change characteristic of the air-fuel ratio λ with respect to the voltage applied to the electrode in the state where the solid electrolyte is heated to 700 ° C is within a range of λ = 0.6 or more. Oxygen concentration detector adjusted to indicate. 제1항 또는 제2항에 있어서, 거치른 층 및 치밀한 층이 알루미나, 마그네시아, 실리카, 티나니아, 지르코니아, 칼루시아의 적어도 하나로 이루어진 전기전열성 금속 산화물층인 것을 특징으로 하는 산소농도 검출기.3. An oxygen concentration detector according to claim 1 or 2, wherein the pass through layer and the dense layer are an electrothermal metal oxide layer composed of at least one of alumina, magnesia, silica, tania, zirconia and calusia. ※ 참고사항 : 최초출된 내용에 의하여 공개하는 것임.※ Note: It is to be disclosed based on the original contents.
KR1019870015506A 1987-01-09 1987-12-31 Oxygen concentration detector KR880009273A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62001663A JPS63171356A (en) 1987-01-09 1987-01-09 Detector for measuring concentration of oxygen
JP62-1663 1987-01-09

Publications (1)

Publication Number Publication Date
KR880009273A true KR880009273A (en) 1988-09-14

Family

ID=11507760

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870015506A KR880009273A (en) 1987-01-09 1987-12-31 Oxygen concentration detector

Country Status (6)

Country Link
JP (1) JPS63171356A (en)
KR (1) KR880009273A (en)
CN (1) CN88100069A (en)
DE (1) DE3800370A1 (en)
FR (1) FR2609550A1 (en)
GB (1) GB2200460A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5538612A (en) * 1987-12-09 1996-07-23 Ngk Spark Plug Co., Ltd. Oxygen sensor element
US4915814A (en) * 1987-09-30 1990-04-10 Hitachi, Ltd. Sensor for measurement of air/fuel ratio and method of manufacturing
JP2514701B2 (en) * 1988-12-02 1996-07-10 日本特殊陶業株式会社 Oxygen sensor
EP0376579B1 (en) * 1988-12-22 1993-08-04 Ngk Insulators, Ltd. One-end closed ceramic double tube and method of manufacturing the same
DE4107217A1 (en) * 1991-03-07 1992-09-10 Battelle Institut E V LIMIT CURRENT PROBE FOR MEASURING THE PARTIAL PRESSURE OF GASES
RU2138800C1 (en) * 1993-07-27 1999-09-27 Роберт Бош Гмбх Electrochemical metering probe with potentially loose sensing element and its manufacturing process
US5593558A (en) * 1994-06-09 1997-01-14 Nippondenso Co., Ltd. Oxygen concentration detector
US8080143B2 (en) * 2005-03-31 2011-12-20 Ngk Spark Plug Co., Ltd. Gas sensor element, method for manufacturing the same, and gas sensor
CN100405050C (en) * 2006-03-23 2008-07-23 广州杰赛科技股份有限公司 Chip and two-way series sheet type oxygen sensor including such chip
DE112010001207B4 (en) * 2009-03-18 2016-05-04 Ulvac, Inc. A method of detecting oxygen or air in a vacuum processing apparatus and air leak detection method
CN106392350B (en) * 2016-09-08 2019-07-23 武汉钢铁集团气体有限责任公司 A kind of processing method and processing device of the branch tracheal rupture of inflammable cryogenic liquid storage tank

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2311165C2 (en) * 1973-03-07 1983-02-17 Robert Bosch Gmbh, 7000 Stuttgart Electrochemical measuring sensor for the determination of the oxygen content in exhaust gases, mainly from internal combustion engines
JPS51145390A (en) * 1975-06-10 1976-12-14 Nissan Motor Co Ltd Manufacturing method of a coated layer of oxygen senser
DE2711880C2 (en) * 1977-03-18 1985-01-17 Robert Bosch Gmbh, 7000 Stuttgart Polarographic probe for measuring oxygen concentration and process for its manufacture
US4177112A (en) * 1978-03-27 1979-12-04 Nippondenso Co., Ltd. Oxygen concentration detector and method of use thereof
JPS55166039A (en) * 1979-06-12 1980-12-24 Nissan Motor Co Ltd Air fuel ratio detector
JPS57147049A (en) * 1981-03-06 1982-09-10 Nissan Motor Co Ltd Oxygen sensor element
JPS5824855A (en) * 1981-08-05 1983-02-14 Nippon Denso Co Ltd Oxygen concentration detector
JPS60171447A (en) * 1984-02-17 1985-09-04 Hitachi Ltd Air/fuel ratio detection apparatus
JPH05313980A (en) * 1992-05-07 1993-11-26 Olympus Optical Co Ltd Information recording method

Also Published As

Publication number Publication date
GB2200460A (en) 1988-08-03
DE3800370A1 (en) 1988-07-21
CN88100069A (en) 1988-07-20
FR2609550A1 (en) 1988-07-15
JPS63171356A (en) 1988-07-15
GB8800305D0 (en) 1988-02-10

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