DE8901861U1 - - Google Patents

Info

Publication number
DE8901861U1
DE8901861U1 DE8901861U DE8901861U DE8901861U1 DE 8901861 U1 DE8901861 U1 DE 8901861U1 DE 8901861 U DE8901861 U DE 8901861U DE 8901861 U DE8901861 U DE 8901861U DE 8901861 U1 DE8901861 U1 DE 8901861U1
Authority
DE
Germany
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
DE8901861U
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE8901861U priority Critical patent/DE8901861U1/de
Publication of DE8901861U1 publication Critical patent/DE8901861U1/de
Priority to DE3939386A priority patent/DE3939386C2/de
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
    • G01N27/16—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
    • 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

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)
DE8901861U 1989-02-17 1989-02-17 Expired DE8901861U1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8901861U DE8901861U1 (de) 1989-02-17 1989-02-17
DE3939386A DE3939386C2 (de) 1989-02-17 1989-11-29 Gerät zur Erfassung der Konzentration explosibler oder gesundheitsgefährdender Gase oder zum Nachweis der Konzentration von Sauerstoff in brennbaren Gasgemischen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8901861U DE8901861U1 (de) 1989-02-17 1989-02-17

Publications (1)

Publication Number Publication Date
DE8901861U1 true DE8901861U1 (de) 1989-04-06

Family

ID=6836124

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8901861U Expired DE8901861U1 (de) 1989-02-17 1989-02-17
DE3939386A Expired - Fee Related DE3939386C2 (de) 1989-02-17 1989-11-29 Gerät zur Erfassung der Konzentration explosibler oder gesundheitsgefährdender Gase oder zum Nachweis der Konzentration von Sauerstoff in brennbaren Gasgemischen

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE3939386A Expired - Fee Related DE3939386C2 (de) 1989-02-17 1989-11-29 Gerät zur Erfassung der Konzentration explosibler oder gesundheitsgefährdender Gase oder zum Nachweis der Konzentration von Sauerstoff in brennbaren Gasgemischen

Country Status (1)

Country Link
DE (2) DE8901861U1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670291B1 (fr) * 1990-12-07 1994-11-04 Icare Sa Dispositif de controle de temperature pour element sensible d'un detecteur de gaz combustible a filaments.
DE102006011117A1 (de) * 2006-03-08 2007-09-13 Esders Gmbh Vorrichtung und Verfahren zur Detektion von brennbaren Gasen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622307A1 (de) * 1986-07-03 1988-01-14 Draegerwerk Ag Messeinrichtung zum nachweis des anteils von brennbaren gasen in luftgemischen

Also Published As

Publication number Publication date
DE3939386A1 (de) 1990-08-23
DE3939386C2 (de) 1998-12-24

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