GB2017930A - Amperometric oxygen sensor - Google Patents

Amperometric oxygen sensor

Info

Publication number
GB2017930A
GB2017930A GB7909821A GB7909821A GB2017930A GB 2017930 A GB2017930 A GB 2017930A GB 7909821 A GB7909821 A GB 7909821A GB 7909821 A GB7909821 A GB 7909821A GB 2017930 A GB2017930 A GB 2017930A
Authority
GB
United Kingdom
Prior art keywords
inches
cathode
membrane
support member
sensor
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.)
Withdrawn
Application number
GB7909821A
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.)
Beckman Coulter Inc
Original Assignee
Beckman Instruments Inc
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 Beckman Instruments Inc filed Critical Beckman Instruments Inc
Publication of GB2017930A publication Critical patent/GB2017930A/en
Withdrawn legal-status Critical Current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
    • G01N27/404—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors

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

An amperometric electrochemical sensor having two electrodes includes a body, (21) a cathode (34), mounted within a support member (30) by epoxy- seal (39) and electrically connected by an electrolyte (43), and a gas-permeable membrane (29) fixed by O-ring (28) extending across one end of the body and separating the electrodes and the electrolyte from a gas sample to be analyzed. The sensor configuration determines membrane tension and establishes a conical membrane geometry so as to maximize the speed of the response of the sensor, to enhance span stability, and to provide an output which is linear over a very wide dynamic range. The end of cathode (34) in contact with membrane (29) has a diameter in the range 0.01 - 0.08 inches and a surface radius greater then 0.2 inches, extending through support member (30). The end of cathode (34) extends co. (0.005 - 0.045 inches) beyond the surface of the support member. <IMAGE>
GB7909821A 1978-03-22 1979-03-20 Amperometric oxygen sensor Withdrawn GB2017930A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US88945378A 1978-03-22 1978-03-22
US867979A 1979-02-02 1979-02-02

Publications (1)

Publication Number Publication Date
GB2017930A true GB2017930A (en) 1979-10-10

Family

ID=26678464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7909821A Withdrawn GB2017930A (en) 1978-03-22 1979-03-20 Amperometric oxygen sensor

Country Status (6)

Country Link
JP (1) JPS54139893U (en)
DE (1) DE2911316A1 (en)
FR (1) FR2422950A1 (en)
GB (1) GB2017930A (en)
IT (1) IT1111282B (en)
SE (1) SE7902527L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502336A1 (en) * 1981-03-21 1982-09-24 Draegerwerk Ag ELECTROCHEMICAL MEASURING APPARATUS WITH INTERCHANGEABLE MEMBRANE SUPPORT

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0441328Y2 (en) * 1984-09-21 1992-09-29

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445369A (en) * 1966-10-31 1969-05-20 Beckman Instruments Inc Electrolytic sensor with improved membrane support
US3509034A (en) * 1968-05-29 1970-04-28 T O Paine Pulse-activated polarographic hydrogen detector
US3832299A (en) * 1968-07-18 1974-08-27 Nat Res Dev Gas detecting electrode assembly
US3718568A (en) * 1971-05-21 1973-02-27 Instrumentation Labor Inc Electrochemical sensor instrumentation
US3758398A (en) * 1971-06-30 1973-09-11 Imi Division Of Becton Dickins Fluid sensor
US3847777A (en) * 1972-05-08 1974-11-12 Instrumentation Labor Inc Electrochemical analyzer
US4077861A (en) * 1976-01-28 1978-03-07 Teledyne Industries, Inc. Polarographic sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502336A1 (en) * 1981-03-21 1982-09-24 Draegerwerk Ag ELECTROCHEMICAL MEASURING APPARATUS WITH INTERCHANGEABLE MEMBRANE SUPPORT

Also Published As

Publication number Publication date
IT1111282B (en) 1986-01-13
DE2911316A1 (en) 1979-10-04
FR2422950A1 (en) 1979-11-09
SE7902527L (en) 1979-09-23
IT7921206A0 (en) 1979-03-22
JPS54139893U (en) 1979-09-28

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)