FR2375594A1 - ELECTROCHEMICAL GAS SENSOR EQUIPPED WITH MEANS OF CHECKING ITS OPERATION - Google Patents

ELECTROCHEMICAL GAS SENSOR EQUIPPED WITH MEANS OF CHECKING ITS OPERATION

Info

Publication number
FR2375594A1
FR2375594A1 FR7737429A FR7737429A FR2375594A1 FR 2375594 A1 FR2375594 A1 FR 2375594A1 FR 7737429 A FR7737429 A FR 7737429A FR 7737429 A FR7737429 A FR 7737429A FR 2375594 A1 FR2375594 A1 FR 2375594A1
Authority
FR
France
Prior art keywords
checking
sensor
gas sensor
electrochemical gas
sensor equipped
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
FR7737429A
Other languages
French (fr)
Other versions
FR2375594B1 (en
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of FR2375594A1 publication Critical patent/FR2375594A1/en
Application granted granted Critical
Publication of FR2375594B1 publication Critical patent/FR2375594B1/fr
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
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/49—Systems involving the determination of the current at a single specific value, or small range of values, of applied voltage for producing selective measurement of one or more particular ionic species

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)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

Ce capteur est du type de ceux constitués par au moins deux électrodes de travail et une contre-électrode placées dans un électrolyte sous une membrane qui les isole de l'extérieur. Le capteur selon l'invention est muni d'une unité d'interprétation comprenant un amplificateur additionneur 13, qui forme à partir des valeurs électriques respectives U 11 , U12 pour les différentes électrodes de travail une valeur moyenne affichée par un appareil indicateur 19, et des étages differentiateurs 15, 17, qui surveillent l'égalité entre les valeurs précitées. On obtient ainsi un contrôle automatique du fonctionnement du capteur.This sensor is of the type of those formed by at least two working electrodes and a counter-electrode placed in an electrolyte under a membrane which isolates them from the outside. The sensor according to the invention is provided with an interpretation unit comprising an adder amplifier 13, which forms from the respective electrical values U 11, U12 for the different working electrodes an average value displayed by an indicating device 19, and differentiating stages 15, 17, which monitor the equality between the aforementioned values. An automatic check of the operation of the sensor is thus obtained.

FR7737429A 1976-12-24 1977-12-06 ELECTROCHEMICAL GAS SENSOR EQUIPPED WITH MEANS OF CHECKING ITS OPERATION Granted FR2375594A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762658734 DE2658734C3 (en) 1976-12-24 1976-12-24 Function monitoring for an electrochemical gas sensor

Publications (2)

Publication Number Publication Date
FR2375594A1 true FR2375594A1 (en) 1978-07-21
FR2375594B1 FR2375594B1 (en) 1983-06-17

Family

ID=5996556

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7737429A Granted FR2375594A1 (en) 1976-12-24 1977-12-06 ELECTROCHEMICAL GAS SENSOR EQUIPPED WITH MEANS OF CHECKING ITS OPERATION

Country Status (5)

Country Link
BE (1) BE861991A (en)
DE (1) DE2658734C3 (en)
FR (1) FR2375594A1 (en)
GB (1) GB1556969A (en)
NL (1) NL7711868A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4775456A (en) * 1987-02-02 1988-10-04 Teledyne Industries, Inc. Electrochemical gas sensor
US7715893B2 (en) 2003-12-05 2010-05-11 Dexcom, Inc. Calibration techniques for a continuous analyte sensor
US20190357827A1 (en) 2003-08-01 2019-11-28 Dexcom, Inc. Analyte sensor
US7920906B2 (en) 2005-03-10 2011-04-05 Dexcom, Inc. System and methods for processing analyte sensor data for sensor calibration
US9247900B2 (en) 2004-07-13 2016-02-02 Dexcom, Inc. Analyte sensor
US8364231B2 (en) 2006-10-04 2013-01-29 Dexcom, Inc. Analyte sensor
US8532730B2 (en) 2006-10-04 2013-09-10 Dexcom, Inc. Analyte sensor
US8287453B2 (en) 2003-12-05 2012-10-16 Dexcom, Inc. Analyte sensor
US8423114B2 (en) 2006-10-04 2013-04-16 Dexcom, Inc. Dual electrode system for a continuous analyte sensor
US11633133B2 (en) 2003-12-05 2023-04-25 Dexcom, Inc. Dual electrode system for a continuous analyte sensor
US7654956B2 (en) 2004-07-13 2010-02-02 Dexcom, Inc. Transcutaneous analyte sensor
US9149220B2 (en) 2011-04-15 2015-10-06 Dexcom, Inc. Advanced analyte sensor calibration and error detection
DE102016107889B4 (en) * 2016-04-28 2024-05-08 Endress+Hauser Conducta Gmbh+Co. Kg Electrochemical sensor with display element

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718568A (en) * 1971-05-21 1973-02-27 Instrumentation Labor Inc Electrochemical sensor instrumentation
US3909386A (en) * 1970-11-10 1975-09-30 Energetics Science Gas detector unit
FR2330001A1 (en) * 1975-10-28 1977-05-27 Consolidation Coal Co COMBUSTIBLE GAS DETECTION CIRCUIT IN THE ATMOSPHERE OF A MINE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909386A (en) * 1970-11-10 1975-09-30 Energetics Science Gas detector unit
US3718568A (en) * 1971-05-21 1973-02-27 Instrumentation Labor Inc Electrochemical sensor instrumentation
FR2330001A1 (en) * 1975-10-28 1977-05-27 Consolidation Coal Co COMBUSTIBLE GAS DETECTION CIRCUIT IN THE ATMOSPHERE OF A MINE

Also Published As

Publication number Publication date
DE2658734B2 (en) 1979-03-01
FR2375594B1 (en) 1983-06-17
NL7711868A (en) 1978-06-27
GB1556969A (en) 1979-12-05
BE861991A (en) 1978-04-14
DE2658734A1 (en) 1978-06-29
DE2658734C3 (en) 1979-10-31

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