CH566002A5 - - Google Patents

Info

Publication number
CH566002A5
CH566002A5 CH122174A CH122174A CH566002A5 CH 566002 A5 CH566002 A5 CH 566002A5 CH 122174 A CH122174 A CH 122174A CH 122174 A CH122174 A CH 122174A CH 566002 A5 CH566002 A5 CH 566002A5
Authority
CH
Switzerland
Application number
CH122174A
Original Assignee
Vysoka Skola Chem Tech
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 Vysoka Skola Chem Tech filed Critical Vysoka Skola Chem Tech
Priority to CH122174A priority Critical patent/CH566002A5/xx
Priority to DE19742404014 priority patent/DE2404014A1/de
Priority to FR7404435A priority patent/FR2260796A1/fr
Publication of CH566002A5 publication Critical patent/CH566002A5/xx

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, e.g. intermittent, or the display, e.g. digital
    • G01N33/0067—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital by measuring the rate of variation of the concentration
CH122174A 1974-01-29 1974-01-29 CH566002A5 (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH122174A CH566002A5 (it) 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 (it) 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
CH566002A5 true CH566002A5 (it) 1975-08-29

Family

ID=27172801

Family Applications (1)

Application Number Title Priority Date Filing Date
CH122174A CH566002A5 (it) 1974-01-29 1974-01-29

Country Status (3)

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

Families Citing this family (3)

* 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
GB0507895D0 (en) * 2005-04-19 2005-05-25 City Tech Gas sensor assembly

Also Published As

Publication number Publication date
DE2404014A1 (de) 1975-08-07
FR2260796A1 (en) 1975-09-05
FR2260796B1 (it) 1977-06-10

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Legal Events

Date Code Title Description
PL Patent ceased