FR1494162A - Improvements in katharometers - Google Patents

Improvements in katharometers

Info

Publication number
FR1494162A
FR1494162A FR68620A FR68620A FR1494162A FR 1494162 A FR1494162 A FR 1494162A FR 68620 A FR68620 A FR 68620A FR 68620 A FR68620 A FR 68620A FR 1494162 A FR1494162 A FR 1494162A
Authority
FR
France
Prior art keywords
katharometers
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
FR68620A
Other languages
French (fr)
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.)
Charbonnages de France CDF
Original Assignee
Charbonnages de France CDF
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 Charbonnages de France CDF filed Critical Charbonnages de France CDF
Priority to FR68620A priority Critical patent/FR1494162A/en
Priority to DE19671648857 priority patent/DE1648857A1/en
Priority to GB3149967A priority patent/GB1144273A/en
Application granted granted Critical
Publication of FR1494162A publication Critical patent/FR1494162A/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
    • G01N27/02—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
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/18—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
    • G01N27/185—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested using a catharometer
    • 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
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
FR68620A 1966-07-07 1966-07-07 Improvements in katharometers Expired FR1494162A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR68620A FR1494162A (en) 1966-07-07 1966-07-07 Improvements in katharometers
DE19671648857 DE1648857A1 (en) 1966-07-07 1967-07-06 Katharometer
GB3149967A GB1144273A (en) 1966-07-07 1967-07-07 Improvements in catharometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR68620A FR1494162A (en) 1966-07-07 1966-07-07 Improvements in katharometers

Publications (1)

Publication Number Publication Date
FR1494162A true FR1494162A (en) 1967-09-08

Family

ID=8612793

Family Applications (1)

Application Number Title Priority Date Filing Date
FR68620A Expired FR1494162A (en) 1966-07-07 1966-07-07 Improvements in katharometers

Country Status (3)

Country Link
DE (1) DE1648857A1 (en)
FR (1) FR1494162A (en)
GB (1) GB1144273A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622307A1 (en) * 1986-07-03 1988-01-14 Draegerwerk Ag MEASURING DEVICE FOR DETECTING THE CONTENT OF COMBUSTIBLE GASES IN AIR MIXTURES
DE358925T1 (en) * 1988-09-14 1991-04-11 Seiko Co., Ltd., Kashiwa, Chiba, Jp CO DETECTING CO BY CATALYTIC COMBUSTION.
JP4016813B2 (en) * 2002-11-21 2007-12-05 松下電器産業株式会社 Gas detector, fuel cell system using the same, and automobile

Also Published As

Publication number Publication date
DE1648857A1 (en) 1971-01-21
GB1144273A (en) 1969-03-05

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