JPS57163863A - Testing method for characteristic of oxygen sensor element - Google Patents

Testing method for characteristic of oxygen sensor element

Info

Publication number
JPS57163863A
JPS57163863A JP56047277A JP4727781A JPS57163863A JP S57163863 A JPS57163863 A JP S57163863A JP 56047277 A JP56047277 A JP 56047277A JP 4727781 A JP4727781 A JP 4727781A JP S57163863 A JPS57163863 A JP S57163863A
Authority
JP
Japan
Prior art keywords
signal
integral
sensor element
oxygen sensor
circuit
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.)
Pending
Application number
JP56047277A
Other languages
Japanese (ja)
Inventor
Masaaki Uchida
Masao Ishitani
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP56047277A priority Critical patent/JPS57163863A/en
Publication of JPS57163863A publication Critical patent/JPS57163863A/en
Pending 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
    • G01N27/416—Systems
    • G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
    • G01N27/4175—Calibrating or checking the analyser

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)

Abstract

PURPOSE:To measure an output voltage characteristic and a response property of an oxygen sensor element accurately, by integrating measured signal from the oxygen sensor element and measuring a mean level and the frequency of variations of an integral direction of this integral signal. CONSTITUTION:When a control valve 24 is shut and excess fuel is burnt with air in a combustion room 21 and then, burnt waste gas is flowed into a discharge pipe 26, a high output voltage Vs corresponding to the concentration of oxygen in the waste gas is outputted by an oxygen sensor element 1. This voltage Vs is passed through a comparison circuit 27 and is integrated by an integral signal generator 28 and then, is inputted into a comparison circuit 31. A comparison signal forming e.g. 40Hz triangle wave, is inputted into another input of the circuit 31 and when the integral signal exceeds this comparison signal, an output signal for driving the valve 24 is generated from the circuit 31. A characteristic of output voltage of the element 1 is discriminated and its response propety is tested by measuring a mean level and frequency of variations of an integral direction of this integral signal by a mean value circuit 34.
JP56047277A 1981-04-01 1981-04-01 Testing method for characteristic of oxygen sensor element Pending JPS57163863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56047277A JPS57163863A (en) 1981-04-01 1981-04-01 Testing method for characteristic of oxygen sensor element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56047277A JPS57163863A (en) 1981-04-01 1981-04-01 Testing method for characteristic of oxygen sensor element

Publications (1)

Publication Number Publication Date
JPS57163863A true JPS57163863A (en) 1982-10-08

Family

ID=12770787

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56047277A Pending JPS57163863A (en) 1981-04-01 1981-04-01 Testing method for characteristic of oxygen sensor element

Country Status (1)

Country Link
JP (1) JPS57163863A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622844A (en) * 1985-04-22 1986-11-18 Allied Corporation Oxygen sensor monitor
US5648601A (en) * 1994-11-14 1997-07-15 Toyota Jidosha Kabushiki Kaisha Apparatus for analyzing air/fuel ratio sensor characteristics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622844A (en) * 1985-04-22 1986-11-18 Allied Corporation Oxygen sensor monitor
US5648601A (en) * 1994-11-14 1997-07-15 Toyota Jidosha Kabushiki Kaisha Apparatus for analyzing air/fuel ratio sensor characteristics

Similar Documents

Publication Publication Date Title
KR840009138A (en) Gas concentration measurement device and its method
GB2188433A (en) Method of abnormality detection for oxygen concentration sensor
GB2188435A (en) Method of abnormality detection for oxygen concentration sensor
US4121455A (en) Measuring a flow of gas through a combustion engine
GB2188436A (en) Method of abnormality detection for oxygen concentration sensor
US4934178A (en) Method and apparatus for determining the density of a gas
JPS57163863A (en) Testing method for characteristic of oxygen sensor element
JPS5751960A (en) Ignition system diagnostic apparatus for internal combustion engine
JPS56118273A (en) Concentration sensor for fuel cell
JPS552919A (en) Method of inspecting pressure loss in gas cock fitted with excess flow preventing valve
JPS57208443A (en) Apparatus for evaluating performance of oxygen sensor
JPS5698613A (en) Fuel control device
US4002429A (en) Method and apparatus for measuring the concentration of combustible components of a gas mixture
KR870001484B1 (en) Gas analyzer with aspipated test gas
JPS5381824A (en) Diagnostic device of air fuel ratio controller
JPS5529750A (en) Method and apparatus for continuous measurement of maximum burning rate of gas
JPS5616024A (en) Inspecting method of combustion of combusting apparatus
SU1124212A1 (en) Automatic device for measuring electrolyte concentration
JPS5822945A (en) Valuation apparatus for capability of oxygen sensor
SU1620870A1 (en) Method of testing hollow articles for tightness
JPS56140215A (en) Air/fuel ratio measurement device
JPS57122134A (en) Air fuel ratio control method for internal combustion engine
SU681327A1 (en) Rotary flow metet
JPS6488344A (en) Instrument for measuring nitrogen oxide
JPS6473150A (en) Engine control device