GB2259573B - Device for measuring and regulating the air concentration in a chamber - Google Patents

Device for measuring and regulating the air concentration in a chamber

Info

Publication number
GB2259573B
GB2259573B GB9219289A GB9219289A GB2259573B GB 2259573 B GB2259573 B GB 2259573B GB 9219289 A GB9219289 A GB 9219289A GB 9219289 A GB9219289 A GB 9219289A GB 2259573 B GB2259573 B GB 2259573B
Authority
GB
United Kingdom
Prior art keywords
regulating
measuring
chamber
air concentration
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.)
Expired - Fee Related
Application number
GB9219289A
Other versions
GB9219289D0 (en
GB2259573A (en
Inventor
Didier Thibault
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.)
Superba SAS
Original Assignee
Superba SAS
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 Superba SAS filed Critical Superba SAS
Publication of GB9219289D0 publication Critical patent/GB9219289D0/en
Publication of GB2259573A publication Critical patent/GB2259573A/en
Application granted granted Critical
Publication of GB2259573B publication Critical patent/GB2259573B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01N27/4067—Means for heating or controlling the temperature of the solid electrolyte
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/135—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture
    • G05D11/138—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture by sensing the concentration of the mixture, e.g. measuring pH value

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Electrochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
GB9219289A 1991-09-11 1992-09-11 Device for measuring and regulating the air concentration in a chamber Expired - Fee Related GB2259573B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9111204A FR2681137B1 (en) 1991-09-11 1991-09-11 DEVICE FOR MEASURING AND ADJUSTING THE AIR CONCENTRATION OF A SPEAKER.

Publications (3)

Publication Number Publication Date
GB9219289D0 GB9219289D0 (en) 1992-10-28
GB2259573A GB2259573A (en) 1993-03-17
GB2259573B true GB2259573B (en) 1995-05-17

Family

ID=9416837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9219289A Expired - Fee Related GB2259573B (en) 1991-09-11 1992-09-11 Device for measuring and regulating the air concentration in a chamber

Country Status (3)

Country Link
DE (1) DE4230343A1 (en)
FR (1) FR2681137B1 (en)
GB (1) GB2259573B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU662855B2 (en) * 1993-03-25 1995-09-14 Novatech Controls Pty Ltd Oxygen probe
GB2276460B (en) * 1993-03-25 1996-10-16 Novatech Controls Oxygen probe
CN103235608B (en) * 2013-04-24 2015-02-04 丹东百特仪器有限公司 Humidity control system
CN112730606B (en) * 2020-12-31 2022-09-27 青岛精安医疗科技有限责任公司 Ultrasonic oxygen concentration measuring method and system based on pressure detection and oxygen generation system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1225690A (en) * 1967-10-18 1971-03-17
GB1366617A (en) * 1971-07-05 1974-09-11 Commissariat Energie Atomique Method of regulation by sampling the partial pressure of a gas mixture
GB2112526A (en) * 1981-03-06 1983-07-20 Yokogawa Electric Works Ltd Oxygen gas analyzer using solid electrolyte
GB2159281A (en) * 1984-05-24 1985-11-27 Westinghouse Electric Corp Monitoring oxidation/reduction potential or oxygen or hydrogen concentration of a steam environment
EP0281375A2 (en) * 1987-03-04 1988-09-07 Westinghouse Electric Corporation Oxygen analyzer
GB2202053A (en) * 1987-03-09 1988-09-14 Yokogawa Electric Corp Apparatus for measuring combustible gas concentration in flue gas
EP0309104A2 (en) * 1987-09-03 1989-03-29 International Control Automation Finance S.A. Analysing the oxygen content of gases in industrial processes
EP0421872A1 (en) * 1989-10-04 1991-04-10 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Milling tool, especially for a machining robot

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478150A1 (en) * 1980-03-12 1981-09-18 Superba Sa Steam treatment chamber for yarns - has homogeneous ambient atmosphere
JPS5928661B2 (en) * 1980-07-19 1984-07-14 株式会社山東鉄工所 Atmosphere measurement and adjustment device in high pressure steamer
EP0108141A1 (en) * 1982-05-07 1984-05-16 Marathon Medical Equipment Corporation Oxygen analyzer
GB8922126D0 (en) * 1989-10-02 1989-11-15 Normalair Garrett Ltd Oxygen monitoring method and apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1225690A (en) * 1967-10-18 1971-03-17
GB1366617A (en) * 1971-07-05 1974-09-11 Commissariat Energie Atomique Method of regulation by sampling the partial pressure of a gas mixture
GB2112526A (en) * 1981-03-06 1983-07-20 Yokogawa Electric Works Ltd Oxygen gas analyzer using solid electrolyte
GB2159281A (en) * 1984-05-24 1985-11-27 Westinghouse Electric Corp Monitoring oxidation/reduction potential or oxygen or hydrogen concentration of a steam environment
EP0281375A2 (en) * 1987-03-04 1988-09-07 Westinghouse Electric Corporation Oxygen analyzer
GB2202053A (en) * 1987-03-09 1988-09-14 Yokogawa Electric Corp Apparatus for measuring combustible gas concentration in flue gas
EP0309104A2 (en) * 1987-09-03 1989-03-29 International Control Automation Finance S.A. Analysing the oxygen content of gases in industrial processes
EP0421872A1 (en) * 1989-10-04 1991-04-10 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Milling tool, especially for a machining robot

Also Published As

Publication number Publication date
GB9219289D0 (en) 1992-10-28
FR2681137A1 (en) 1993-03-12
GB2259573A (en) 1993-03-17
DE4230343A1 (en) 1993-03-18
FR2681137B1 (en) 1994-07-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030911