JPS578442A - Magnetic measuring apparatus for concentration of oxygen - Google Patents

Magnetic measuring apparatus for concentration of oxygen

Info

Publication number
JPS578442A
JPS578442A JP8328980A JP8328980A JPS578442A JP S578442 A JPS578442 A JP S578442A JP 8328980 A JP8328980 A JP 8328980A JP 8328980 A JP8328980 A JP 8328980A JP S578442 A JPS578442 A JP S578442A
Authority
JP
Japan
Prior art keywords
pole
gas
oxygen
electromagnet
concentration
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
Application number
JP8328980A
Other languages
Japanese (ja)
Other versions
JPH0121903B2 (en
Inventor
Hajime Yamada
Keiichi Hinohara
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.)
MITAKA INSTR CO Ltd
MITAKA KOGYO KK
Original Assignee
MITAKA INSTR CO Ltd
MITAKA KOGYO 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 MITAKA INSTR CO Ltd, MITAKA KOGYO KK filed Critical MITAKA INSTR CO Ltd
Priority to JP8328980A priority Critical patent/JPS578442A/en
Publication of JPS578442A publication Critical patent/JPS578442A/en
Publication of JPH0121903B2 publication Critical patent/JPH0121903B2/ja
Granted 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
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/74—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables of fluids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

PURPOSE:To accurately measure concentration of oxygen without causing any influence due to variation of heat conductivity of gas to be measured, by detecting leakage flux of magnet by detection means of magnetic flux density and measuring concentration of oxygen of the gas to be measured. CONSTITUTION:A reference system 10 is composed of a core 12, an exciting coil 13 and a power source 14 and is equipped with an electromagnet 11 turning a magnetic pole 122 into N pole and a magnetic pole 121 into S pole by a reference electric current Ir which is allowed to flow to the coil 13 and a case 15 filled with the reference gas. A measuring system 20 is composed of a core 22, an exciting coil 23 and a power source 24 with a variable mechanism 241 and is equipped with an electromagnet 21 turning a magnetic pole 221 into N pole and a magnetic pole 222 into S pole by a control current Ic which is allowed to flow to the coil 23 and a case 25 in which the gas to be measured in allowed to flow. A sensor 30 is a sensor part in measuring apparatus of magnetic flux density. When a leakage flux of the electromagnet 11 is phir and that of the electromagnet 21 is phic, these leakage fluxes are detected by the sensor 30 differentially and the output Eo is proportional to the concentration of oxygen of the gas to be measured.
JP8328980A 1980-06-19 1980-06-19 Magnetic measuring apparatus for concentration of oxygen Granted JPS578442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8328980A JPS578442A (en) 1980-06-19 1980-06-19 Magnetic measuring apparatus for concentration of oxygen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8328980A JPS578442A (en) 1980-06-19 1980-06-19 Magnetic measuring apparatus for concentration of oxygen

Publications (2)

Publication Number Publication Date
JPS578442A true JPS578442A (en) 1982-01-16
JPH0121903B2 JPH0121903B2 (en) 1989-04-24

Family

ID=13798223

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8328980A Granted JPS578442A (en) 1980-06-19 1980-06-19 Magnetic measuring apparatus for concentration of oxygen

Country Status (1)

Country Link
JP (1) JPS578442A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60228956A (en) * 1984-04-03 1985-11-14 エルサグ・インターナショナル・ビー・ブイ Rectilinear hall effect oxygen sensor
JP2002107345A (en) * 2000-10-03 2002-04-10 Showa Tansan Co Ltd Oxygen content meter of filling filler or the like
JP2011521223A (en) * 2008-05-14 2011-07-21 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Oxygen concentration measurement by GMR
JP2012509472A (en) * 2008-11-20 2012-04-19 エルモス セミコンダクター エーゲー Sensor capable of correcting interference

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021070925A1 (en) 2019-10-09 2021-04-15 日本製鉄株式会社 Steel sheet and method for manufacturing same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60228956A (en) * 1984-04-03 1985-11-14 エルサグ・インターナショナル・ビー・ブイ Rectilinear hall effect oxygen sensor
JP2002107345A (en) * 2000-10-03 2002-04-10 Showa Tansan Co Ltd Oxygen content meter of filling filler or the like
JP2011521223A (en) * 2008-05-14 2011-07-21 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Oxygen concentration measurement by GMR
US8542009B2 (en) 2008-05-14 2013-09-24 Koninklijke Philips N. V. Oxygen concentration measurement with GMR
JP2012509472A (en) * 2008-11-20 2012-04-19 エルモス セミコンダクター エーゲー Sensor capable of correcting interference

Also Published As

Publication number Publication date
JPH0121903B2 (en) 1989-04-24

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