JPS57108655A - Device for measuring air fuel ratio of internal combustion engine or other burning apparatus - Google Patents

Device for measuring air fuel ratio of internal combustion engine or other burning apparatus

Info

Publication number
JPS57108655A
JPS57108655A JP55184660A JP18466080A JPS57108655A JP S57108655 A JPS57108655 A JP S57108655A JP 55184660 A JP55184660 A JP 55184660A JP 18466080 A JP18466080 A JP 18466080A JP S57108655 A JPS57108655 A JP S57108655A
Authority
JP
Japan
Prior art keywords
gas
sensor
pump
sampling
measured
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
JP55184660A
Other languages
Japanese (ja)
Inventor
Yuichiro Aramaki
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.)
Tsukasa Sokken KK
Original Assignee
Tsukasa Sokken KK
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 Tsukasa Sokken KK filed Critical Tsukasa Sokken KK
Priority to JP55184660A priority Critical patent/JPS57108655A/en
Publication of JPS57108655A publication Critical patent/JPS57108655A/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
    • G01N27/403—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

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)
  • Sampling And Sample Adjustment (AREA)

Abstract

PURPOSE:To enhance measuring accuracy, by using a sampling pump at the final position in a measuring system, making the sampling pump side in a zirconia oxygen concentration sensor to be negative pressure, keeping reference gas at an atmospheric pressure, and increasing the partial pressure ratio of oxygen between the sampling gas and the reference gas. CONSTITUTION:The sample gas in exhausted gas is sucked by a pump 6 from a sampling probe 2 through a capillary tube 3, a catalyst 4, and zirconia sensor 5. Most of the air in an air tank 7 passes through a capillary tube 8 and joins the sample gas. The sample gas and the air join after the passage of respective capillary tubes, and the catalyst 4 completely burns the mixed gas. The atmosphere itself is used as a reference gas in a sensor 5 wherein the concentration of the residual oxygen in said perfectly burnt gas is measured. The measured gas in the sensor 5 is exhausted to the atmosphere by the pump 6. The pump 6 has enough capacity and control the sucking amount of the atmosphere. Thus, the pressure of the gas to be measured in the sensor 5 is kept at a constant negative value with respect to the atmospheric pressure.
JP55184660A 1980-12-25 1980-12-25 Device for measuring air fuel ratio of internal combustion engine or other burning apparatus Pending JPS57108655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55184660A JPS57108655A (en) 1980-12-25 1980-12-25 Device for measuring air fuel ratio of internal combustion engine or other burning apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55184660A JPS57108655A (en) 1980-12-25 1980-12-25 Device for measuring air fuel ratio of internal combustion engine or other burning apparatus

Publications (1)

Publication Number Publication Date
JPS57108655A true JPS57108655A (en) 1982-07-06

Family

ID=16157114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55184660A Pending JPS57108655A (en) 1980-12-25 1980-12-25 Device for measuring air fuel ratio of internal combustion engine or other burning apparatus

Country Status (1)

Country Link
JP (1) JPS57108655A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02183140A (en) * 1989-01-09 1990-07-17 Yokogawa Electric Corp Fine particle measuring apparatus
JPH02190744A (en) * 1989-01-19 1990-07-26 Yokogawa Electric Corp Fine particle measuring instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02183140A (en) * 1989-01-09 1990-07-17 Yokogawa Electric Corp Fine particle measuring apparatus
JPH02190744A (en) * 1989-01-19 1990-07-26 Yokogawa Electric Corp Fine particle measuring instrument

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