JPH08510560A - ガス中の酸素含量検出装置 - Google Patents
ガス中の酸素含量検出装置Info
- Publication number
- JPH08510560A JPH08510560A JP7523144A JP52314495A JPH08510560A JP H08510560 A JPH08510560 A JP H08510560A JP 7523144 A JP7523144 A JP 7523144A JP 52314495 A JP52314495 A JP 52314495A JP H08510560 A JPH08510560 A JP H08510560A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- gas
- measurement
- measuring
- oxygen
- 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.)
- Granted
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
-
- 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
- G01N27/419—Measuring voltages or currents with a combination of oxygen pumping cells and oxygen concentration cells
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 測定電極、固体電解質及び基準電極を有する、ネルンスト原理によって 作動する少なくとも1つの濃淡電池を具備しており、 測定電極は、測定ガスと接触しており、基準ガス体積と接触している基準電極 に、固体電解質を介して接続されており、 基準ガス体積と測定ガスとの間の粒子交換が少なくとも阻害されるように、基 準ガス体積が測定ガスから分離されており、 測定電極と基準電極との間で取り出される濃淡電池の出力電圧が、測定ガスの 酸素濃度と基準ガス体積の酸素濃度の差の尺度を示し、 結合状態で電流が生じるように、基準電極と測定電極との間で結合される電流 源を具備しており、前記電流は、固体電解質の中で測定電極から基準電極に酸素 が運ばれるような方向に流れる、測定ガスの酸素含量検出装置において、 スイッチを具備しており、第1の切換状態では、電流源を濃淡電池と結合し、 第2の切換状態では、電流源を濃淡電池から分離し、従って分離状態では、測定 電極と基準電極との間の電圧は、電流源の影響を受けないことを特徴とする酸素 含量検出装置。 2. スイッチが第2の切換状態にある場合、測定 電極と基準電極との間の電圧に対する特性値を、酸素含量を検出するために用い ることを特徴とする請求項1に記載の装置を用いた測定ガスの酸素含量検出方法 。 3. スイッチを2つの切換状態の間で周期的に交互に切り換えることを特徴 とする請求項2に記載の測定ガスの酸素含量検出方法。 4. それぞれ2つの切換状態の持続時間の比が、切換状態1での基準ガス体 積への酸素供給が、切換状態2での基準ガス体積からの酸素流出を時間平均にお いて上回るように、前もって決められていることを特徴とする請求項3に記載の 測定ガスの酸素含量検出方法。 5. 第1の切換状態の持続時間が、第2の切換状態の持続時間の1/20か ら1/2までであることを特徴とする請求項4に記載の測定ガスの酸素含量検出 方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4408021A DE4408021A1 (de) | 1994-03-10 | 1994-03-10 | Vorrichtung zur Erfassung des Sauerstoffgehalts in Gasen |
DE4408021.2 | 1994-03-10 | ||
PCT/DE1995/000258 WO1995024643A1 (de) | 1994-03-10 | 1995-02-28 | Vorrichtung zur erfassung des sauerstoffgehalts in gasen |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08510560A true JPH08510560A (ja) | 1996-11-05 |
JP3571047B2 JP3571047B2 (ja) | 2004-09-29 |
Family
ID=6512374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52314495A Expired - Fee Related JP3571047B2 (ja) | 1994-03-10 | 1995-02-28 | ガス中の酸素含量検出装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5632883A (ja) |
EP (1) | EP0698209B1 (ja) |
JP (1) | JP3571047B2 (ja) |
KR (1) | KR100365630B1 (ja) |
BR (1) | BR9505858A (ja) |
DE (2) | DE4408021A1 (ja) |
WO (1) | WO1995024643A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19636226B4 (de) * | 1996-09-06 | 2005-06-02 | Robert Bosch Gmbh | Lambdasondeninnenwiderstandsbestimmung |
US6623618B1 (en) | 1997-12-22 | 2003-09-23 | Ngk Insulators, Ltd. | Gas sensor and method for controlling the same |
DE19800027B4 (de) * | 1998-01-02 | 2004-01-29 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Erfassung des Sauerstoffgehalts in einem Meßgas |
KR20020060714A (ko) * | 1999-10-15 | 2002-07-18 | 덴턴 마이클 | 가스센서구조및 이를 사용하는 방법 |
DE10316645A1 (de) * | 2003-04-11 | 2004-10-28 | Robert Bosch Gmbh | Vorrichtung zum Betreiben eines Gassensors |
DE102004061355A1 (de) * | 2004-12-21 | 2006-07-06 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Regeln einer Gas-Messsonde |
DE102005018436A1 (de) * | 2005-01-03 | 2006-07-13 | Robert Bosch Gmbh | Vorrichtung und Verfahren zum Betreiben eines Sensorelements zur Bestimmung der Konzentration von Gaskomponenten in einem Gasgemisch |
US20060231422A1 (en) * | 2005-04-14 | 2006-10-19 | Honeywell International Inc. | Switched gas sensor |
DE102013103003A1 (de) | 2012-04-05 | 2013-10-10 | Sensore Electronic GmbH | Verfahren sowie Vorrichtung zur Messung des Sauerstoffgehaltes oder des Sauerstoffpartialdruckes in einem Messgas |
JP7375784B2 (ja) * | 2021-03-05 | 2023-11-08 | 横河電機株式会社 | 酸素濃度計、酸素濃度検出システム及びジルコニアセンサの抵抗検出方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4231733A (en) * | 1978-05-31 | 1980-11-04 | Westinghouse Electric Corp. | Combined O2 /combustibles solid electrolyte gas monitoring device |
JPS584986B2 (ja) * | 1978-06-16 | 1983-01-28 | 日産自動車株式会社 | 酸素濃度測定装置 |
JPS55154450A (en) * | 1979-05-19 | 1980-12-02 | Nissan Motor Co Ltd | Air-fuel-ratio detector |
NL7906833A (nl) * | 1979-09-13 | 1981-03-17 | Philips Nv | Gasanalyseapparaat. |
JPS56122950A (en) * | 1980-03-03 | 1981-09-26 | Nissan Motor Co Ltd | Supplying circuit for controlling current for oxygen partial pressure on reference pole for oxygen sensor element |
JPS58105014A (ja) * | 1981-12-18 | 1983-06-22 | Nissan Motor Co Ltd | エンジンの空燃比測定装置 |
JPS6086457A (ja) * | 1983-10-19 | 1985-05-16 | Hitachi Ltd | エンジン制御用空燃比センサ |
NL8304182A (nl) * | 1983-12-06 | 1985-07-01 | Philips Nv | Gasanalyse-apparaat. |
JPS60259952A (ja) * | 1984-06-06 | 1985-12-23 | Ngk Insulators Ltd | 電気化学的素子 |
DE3429583A1 (de) * | 1984-08-10 | 1986-02-20 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur elektrochemischen bestimmung der sauerstoffkonzentration |
US4951632A (en) * | 1988-04-25 | 1990-08-28 | Honda Giken Kogyo K.K. | Exhaust gas component concentration sensing device and method of detecting failure thereof |
US5413683A (en) * | 1993-03-25 | 1995-05-09 | Ngk Insulators Ltd. | Oxygen sensing apparatus and method using electrochemical oxygen pumping action to provide reference gas |
-
1994
- 1994-03-10 DE DE4408021A patent/DE4408021A1/de not_active Ceased
-
1995
- 1995-02-28 EP EP95910423A patent/EP0698209B1/de not_active Expired - Lifetime
- 1995-02-28 JP JP52314495A patent/JP3571047B2/ja not_active Expired - Fee Related
- 1995-02-28 DE DE59508340T patent/DE59508340D1/de not_active Expired - Lifetime
- 1995-02-28 US US08/545,848 patent/US5632883A/en not_active Expired - Fee Related
- 1995-02-28 BR BR9505858A patent/BR9505858A/pt not_active Application Discontinuation
- 1995-02-28 WO PCT/DE1995/000258 patent/WO1995024643A1/de active IP Right Grant
- 1995-02-28 KR KR1019950704973A patent/KR100365630B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0698209B1 (de) | 2000-05-17 |
US5632883A (en) | 1997-05-27 |
EP0698209A1 (de) | 1996-02-28 |
DE59508340D1 (de) | 2000-06-21 |
KR960702611A (ko) | 1996-04-27 |
JP3571047B2 (ja) | 2004-09-29 |
BR9505858A (pt) | 1996-02-21 |
KR100365630B1 (ko) | 2003-03-28 |
DE4408021A1 (de) | 1995-09-14 |
WO1995024643A1 (de) | 1995-09-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4646129B2 (ja) | ガス濃度測定装置の異常診断方法及びガス濃度測定装置の異常診断装置 | |
JP4662207B2 (ja) | 空燃比検出装置 | |
US6551497B1 (en) | Measuring NOx concentration | |
US7655131B2 (en) | Gas sensor and method for controlling the same | |
US6996499B2 (en) | Abnormality detecting device for gas sensor | |
US7608176B2 (en) | Gas concentration detecting apparatus | |
US7445698B2 (en) | Gas concentration detecting apparatus | |
US6383354B1 (en) | Gas concentration sensing apparatus | |
US6083370A (en) | Gas sensor | |
JP5119305B2 (ja) | ガスセンサ制御装置及びガスセンサ制御方法 | |
JPH1090218A (ja) | λセンサの内部抵抗の決定装置および方法 | |
US7288175B2 (en) | Noiseless gas concentration measurement apparatus | |
JP3571047B2 (ja) | ガス中の酸素含量検出装置 | |
EP0816836B1 (en) | Gas sensor, method for controlling gas sensor, gas concentration controller and method for controlling gas concentration | |
EP0863399B1 (en) | Gas sensor and method for controlling gas sensor | |
JPH09318594A (ja) | ガスセンサおよび被測定ガス中の特定成分量の測定方法 | |
EP1860430A1 (en) | Method for diagnosing unusual conditions of gas concentration detecting unit, and apparatus for diagnosing unusual conditions of gas concentration detecting unit | |
US6348140B1 (en) | Gas sensor with a high combined resistance to lead wire resistance ratio | |
JPH0125419B2 (ja) | ||
US6290840B1 (en) | Gas sensor and method for controlling gas sensor | |
JP4048489B2 (ja) | 酸素センサの異常検出装置および異常検出方法 | |
JPH10509242A (ja) | ガス混合物内の成分濃度の測定装置 | |
JP2002372514A (ja) | ガス濃度検出装置 | |
US9823220B2 (en) | NOx concentration detection apparatus and NOx concentration detection method | |
JP2006053126A (ja) | ガス濃度検出装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20040119 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20040301 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040305 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040525 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040623 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070702 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080702 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090702 Year of fee payment: 5 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100702 Year of fee payment: 6 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110702 Year of fee payment: 7 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110702 Year of fee payment: 7 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120702 Year of fee payment: 8 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130702 Year of fee payment: 9 |
|
LAPS | Cancellation because of no payment of annual fees |