FR2284881A1 - Procede et dispositif pour determiner la proportion d'un ou de plusieurs composants dans un melange gazeux - Google Patents

Procede et dispositif pour determiner la proportion d'un ou de plusieurs composants dans un melange gazeux

Info

Publication number
FR2284881A1
FR2284881A1 FR7430785A FR7430785A FR2284881A1 FR 2284881 A1 FR2284881 A1 FR 2284881A1 FR 7430785 A FR7430785 A FR 7430785A FR 7430785 A FR7430785 A FR 7430785A FR 2284881 A1 FR2284881 A1 FR 2284881A1
Authority
FR
France
Prior art keywords
temp
detection
long term
semiconductors
esp
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
FR7430785A
Other languages
English (en)
French (fr)
Other versions
FR2284881B1 (enExample
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.)
WESTFAELISCHE BERGGEWERKSCHAFT
Original Assignee
WESTFAELISCHE BERGGEWERKSCHAFT
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 WESTFAELISCHE BERGGEWERKSCHAFT filed Critical WESTFAELISCHE BERGGEWERKSCHAFT
Priority to FR7430785A priority Critical patent/FR2284881A1/fr
Publication of FR2284881A1 publication Critical patent/FR2284881A1/fr
Application granted granted Critical
Publication of FR2284881B1 publication Critical patent/FR2284881B1/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
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/122—Circuits particularly adapted therefor, e.g. linearising circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
FR7430785A 1974-09-11 1974-09-11 Procede et dispositif pour determiner la proportion d'un ou de plusieurs composants dans un melange gazeux Granted FR2284881A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7430785A FR2284881A1 (fr) 1974-09-11 1974-09-11 Procede et dispositif pour determiner la proportion d'un ou de plusieurs composants dans un melange gazeux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7430785A FR2284881A1 (fr) 1974-09-11 1974-09-11 Procede et dispositif pour determiner la proportion d'un ou de plusieurs composants dans un melange gazeux

Publications (2)

Publication Number Publication Date
FR2284881A1 true FR2284881A1 (fr) 1976-04-09
FR2284881B1 FR2284881B1 (enExample) 1977-10-28

Family

ID=9142985

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7430785A Granted FR2284881A1 (fr) 1974-09-11 1974-09-11 Procede et dispositif pour determiner la proportion d'un ou de plusieurs composants dans un melange gazeux

Country Status (1)

Country Link
FR (1) FR2284881A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624974A1 (fr) * 1987-12-21 1989-06-23 Dana Dominique Dispositif detecteur de gaz
FR2763130A1 (fr) * 1997-05-12 1998-11-13 Motorola Semiconducteurs Procede et systeme capteur permettant de determiner la concentration en une espece chimique

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2196718A5 (enExample) * 1972-08-15 1974-03-15 Borg Warner

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2196718A5 (enExample) * 1972-08-15 1974-03-15 Borg Warner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624974A1 (fr) * 1987-12-21 1989-06-23 Dana Dominique Dispositif detecteur de gaz
FR2763130A1 (fr) * 1997-05-12 1998-11-13 Motorola Semiconducteurs Procede et systeme capteur permettant de determiner la concentration en une espece chimique
WO1998052036A1 (en) * 1997-05-12 1998-11-19 Motorola Semiconducteurs S.A. Method and sensor system for determining a concentration of a chemical species

Also Published As

Publication number Publication date
FR2284881B1 (enExample) 1977-10-28

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Legal Events

Date Code Title Description
ST Notification of lapse