GB1208209A - Method and system for determining the oxygen content in liquids - Google Patents

Method and system for determining the oxygen content in liquids

Info

Publication number
GB1208209A
GB1208209A GB4820068A GB4820068A GB1208209A GB 1208209 A GB1208209 A GB 1208209A GB 4820068 A GB4820068 A GB 4820068A GB 4820068 A GB4820068 A GB 4820068A GB 1208209 A GB1208209 A GB 1208209A
Authority
GB
United Kingdom
Prior art keywords
oxygen
gas
carrier gas
container
inert
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.)
Expired
Application number
GB4820068A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1208209A publication Critical patent/GB1208209A/en
Expired 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
    • G01N27/411—Cells and probes with solid electrolytes for investigating or analysing of liquid metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

1,208,209. Electro-chemical analysis. GENERAL ELECTRIC CO. Oct. 11, 1968 [Nov.27, 1967], No.48200/68. Heading G1N. Dissolved oxygen in e.g. molten steel, copper, or aqueous solution is determined by transporting it with a carrier gas to a solid oxygen-ion electrolyte (e.g. zirconia) oxygen sensor. Steel is sampled in a graphite container which reacts with dissolved atomic oxygen to form CO and CO 2 which is removed by bubbling an inert carrier gas through the sample container. Copper is sampled in a refractory (e.g. molybdenum) container with a reactive carrier gas comprising either hydrogen, water vapour, and inert gas, or CO, CO 2 and an inert gas. In aqueous solutions molecular oxygen is removed by an inert gas in a bubbling chamber. Oxygen sensor comprises a tube of calcia-, scandia-, ytterbia-, or yttria-stabilized zirconia with porous platinum electrodes, and it may be surrounded by a heating coil to maintain it at a working temperature of 850‹C. Measuring circuit. A sophisticated measuring circuit is described with reference to Fig. 5 (not shown), in which oxygen is added to the sample gas to oxidize all CO to CO 2 . Measurements are made of:- flow-rate; oxygen in carrier gas; oxygen in sample gas; and added oxygen, and these signals are fed to a suitable evaluating network. A solid electrolyte sensor is used with an applied voltage as an "oxygen ion pump".
GB4820068A 1967-11-27 1968-10-11 Method and system for determining the oxygen content in liquids Expired GB1208209A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68592167A 1967-11-27 1967-11-27

Publications (1)

Publication Number Publication Date
GB1208209A true GB1208209A (en) 1970-10-07

Family

ID=24754208

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4820068A Expired GB1208209A (en) 1967-11-27 1968-10-11 Method and system for determining the oxygen content in liquids

Country Status (3)

Country Link
DE (1) DE1810458A1 (en)
FR (1) FR1601328A (en)
GB (1) GB1208209A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105137018A (en) * 2015-08-20 2015-12-09 上海清淼光电科技有限公司 Water quality sensor with build-in stable fluid system
CN106371470A (en) * 2016-08-24 2017-02-01 安科工程技术研究院（北京）有限公司 Corrosion evaluation test dissolved oxygen content control device and method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030448A1 (en) * 1980-08-12 1982-03-11 Brown, Boveri & Cie Ag, 6800 Mannheim Temp. independent oxygen content determn. esp. for combustion gases - by using quotient of readings for known and unknown gas compositions
US4568443A (en) * 1984-09-06 1986-02-04 Mitsubishi Denki Kabushiki Kaisha Air-to-fuel ratio sensor
DE3433187C2 (en) * 1984-09-10 1986-11-27 Mitsubishi Denki K.K., Tokio/Tokyo Sensor for measuring the air / fuel ratio

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105137018A (en) * 2015-08-20 2015-12-09 上海清淼光电科技有限公司 Water quality sensor with build-in stable fluid system
CN106371470A (en) * 2016-08-24 2017-02-01 安科工程技术研究院（北京）有限公司 Corrosion evaluation test dissolved oxygen content control device and method
CN106371470B (en) * 2016-08-24 2024-01-26 安科工程技术研究院（北京）有限公司 Device and method for controlling dissolved oxygen content in corrosion evaluation test

Also Published As

Publication number Publication date
FR1601328A (en) 1970-08-17
DE1810458A1 (en) 1969-06-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees