DE2404014A1 - Anordnung zum messen der konzentration von brenngasen in der luft durch katalytisches verbrennen - Google Patents

Anordnung zum messen der konzentration von brenngasen in der luft durch katalytisches verbrennen

Info

Publication number
DE2404014A1
DE2404014A1 DE19742404014 DE2404014A DE2404014A1 DE 2404014 A1 DE2404014 A1 DE 2404014A1 DE 19742404014 DE19742404014 DE 19742404014 DE 2404014 A DE2404014 A DE 2404014A DE 2404014 A1 DE2404014 A1 DE 2404014A1
Authority
DE
Germany
Prior art keywords
measuring
outlet
measuring bridge
capacitor
arrangement
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.)
Pending
Application number
DE19742404014
Other languages
German (de)
English (en)
Inventor
Tomas Dipl Ing Bartovsky
Jiri Dr Ing Sladecek
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.)
University of Chemistry and Technology
Original Assignee
University of Chemistry and Technology
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 University of Chemistry and Technology filed Critical University of Chemistry and Technology
Priority to CH122174A priority Critical patent/CH566002A5/xx
Priority to DE19742404014 priority patent/DE2404014A1/de
Priority to FR7404435A priority patent/FR2260796A1/fr
Publication of DE2404014A1 publication Critical patent/DE2404014A1/de
Pending 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
    • 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
    • G01N33/0067—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 by measuring the rate of variation of the concentration

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 Electric Means (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
DE19742404014 1974-01-29 1974-01-29 Anordnung zum messen der konzentration von brenngasen in der luft durch katalytisches verbrennen Pending DE2404014A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH122174A CH566002A5 (enExample) 1974-01-29 1974-01-29
DE19742404014 DE2404014A1 (de) 1974-01-29 1974-01-29 Anordnung zum messen der konzentration von brenngasen in der luft durch katalytisches verbrennen
FR7404435A FR2260796A1 (en) 1974-01-29 1974-02-11 Measuring instrument for combustible gas concentrations in air - is unaffected by changes in gas mixture conductivity or ambient temp.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH122174A CH566002A5 (enExample) 1974-01-29 1974-01-29
DE19742404014 DE2404014A1 (de) 1974-01-29 1974-01-29 Anordnung zum messen der konzentration von brenngasen in der luft durch katalytisches verbrennen
FR7404435A FR2260796A1 (en) 1974-01-29 1974-02-11 Measuring instrument for combustible gas concentrations in air - is unaffected by changes in gas mixture conductivity or ambient temp.

Publications (1)

Publication Number Publication Date
DE2404014A1 true DE2404014A1 (de) 1975-08-07

Family

ID=27172801

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742404014 Pending DE2404014A1 (de) 1974-01-29 1974-01-29 Anordnung zum messen der konzentration von brenngasen in der luft durch katalytisches verbrennen

Country Status (3)

Country Link
CH (1) CH566002A5 (enExample)
DE (1) DE2404014A1 (enExample)
FR (1) FR2260796A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006111727A1 (en) * 2005-04-19 2006-10-26 City Technology Limited Gas sensor assembly with catalytic element

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2627916C3 (de) * 1976-06-22 1978-12-21 Auergesellschaft Gmbh, 1000 Berlin Schaltungsanordnung für eine Meßbrücke eines Gasspürgerätes
US4150495A (en) * 1978-05-03 1979-04-24 Bobst-Champlain, Inc. LEL (lower explosive limit) control with automatic calibration capability

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006111727A1 (en) * 2005-04-19 2006-10-26 City Technology Limited Gas sensor assembly with catalytic element
GB2439906A (en) * 2005-04-19 2008-01-09 City Tech Gas sensor assembly with catalytic element
GB2439906B (en) * 2005-04-19 2010-01-06 City Tech Gas sensor assembly with catalytic element

Also Published As

Publication number Publication date
FR2260796B1 (enExample) 1977-06-10
FR2260796A1 (en) 1975-09-05
CH566002A5 (enExample) 1975-08-29

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Legal Events

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