[go: up one dir, main page]

GB1575767A - Apparatus for the unambiguous indication of the proportion of combustibles in a gaseous sample - Google Patents

Apparatus for the unambiguous indication of the proportion of combustibles in a gaseous sample Download PDF

Info

Publication number
GB1575767A
GB1575767A GB5170677A GB5170677A GB1575767A GB 1575767 A GB1575767 A GB 1575767A GB 5170677 A GB5170677 A GB 5170677A GB 5170677 A GB5170677 A GB 5170677A GB 1575767 A GB1575767 A GB 1575767A
Authority
GB
United Kingdom
Prior art keywords
sample
measuring
oxygen
signal
indicating instrument
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
GB5170677A
Other languages
English (en)
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of GB1575767A publication Critical patent/GB1575767A/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
    • G01N27/16—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
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
    • G01N33/0032—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array using two or more different physical functioning modes

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)
GB5170677A 1976-12-10 1977-12-12 Apparatus for the unambiguous indication of the proportion of combustibles in a gaseous sample Expired GB1575767A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762655954 DE2655954C3 (de) 1976-12-10 1976-12-10 Vorrichtung zur eindeutigen Anzeige des Anteils brennbarer Bestandteile in einer Gasprobe

Publications (1)

Publication Number Publication Date
GB1575767A true GB1575767A (en) 1980-09-24

Family

ID=5995161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5170677A Expired GB1575767A (en) 1976-12-10 1977-12-12 Apparatus for the unambiguous indication of the proportion of combustibles in a gaseous sample

Country Status (4)

Country Link
BE (1) BE861685A (de)
DE (1) DE2655954C3 (de)
FR (1) FR2373793A1 (de)
GB (1) GB1575767A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485666A (en) * 1981-09-11 1984-12-04 Coal Industry (Patents) Limited Gas analyzer
EP1152238A2 (de) * 2000-05-04 2001-11-07 BW Technologies Limited Instrument zur Detektion brennbarer Gase

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK172281A (da) * 1981-04-15 1982-10-16 O Johannsen Apparat til analyse af forbraendingsgas
FR2507779A1 (fr) * 1981-06-15 1982-12-17 Charbonnages De France Procede et appareil d'explosimetrie a moyen nouveau de lever de doute des mesures
DE3132297C2 (de) * 1981-08-12 1985-05-15 Auergesellschaft Gmbh, 1000 Berlin Schaltungsanordnung für ein Gerät zur Messung und Anzeige der Konzentration von in Luft enthaltenen brennbaren Gasen und Dämpfen
DE3622307A1 (de) * 1986-07-03 1988-01-14 Draegerwerk Ag Messeinrichtung zum nachweis des anteils von brennbaren gasen in luftgemischen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485666A (en) * 1981-09-11 1984-12-04 Coal Industry (Patents) Limited Gas analyzer
EP1152238A2 (de) * 2000-05-04 2001-11-07 BW Technologies Limited Instrument zur Detektion brennbarer Gase
EP1152238A3 (de) * 2000-05-04 2003-01-29 BW Technologies Limited Instrument zur Detektion brennbarer Gase

Also Published As

Publication number Publication date
BE861685A (fr) 1978-03-31
DE2655954B2 (de) 1979-08-23
DE2655954A1 (de) 1978-06-22
FR2373793B1 (de) 1984-01-06
FR2373793A1 (fr) 1978-07-07
DE2655954C3 (de) 1980-05-22

Similar Documents

Publication Publication Date Title
US4323777A (en) Hydrocarbon gas analyzer
KR20060085094A (ko) 시편 연소에 따른 열방출률 측정과 화재평가 요소 분석시스템
US3519391A (en) Method of and apparatus for measuring combustible constituents of gas samples
US3674436A (en) Exhaust gas analyzer for internal combustion engines
US2787903A (en) Measuring apparatus
GB1575767A (en) Apparatus for the unambiguous indication of the proportion of combustibles in a gaseous sample
US2596992A (en) Apparatus for gas analysis
US2565230A (en) Gas analysis apparatus
Roeser et al. Methods of testing thermocouples and thermocouple materials
US4664886A (en) Trimode gas detection instrument
US2437720A (en) Method of and apparatus for measuring the composition of gas
US3497323A (en) Apparatus for measuring the concentration of combustible gases and vapors
US3607701A (en) Electrochemical analyzer for measuring the oxygen content of hot gases
US3111388A (en) Method for testing electrical instrumentalities for incipient fault
GB1584830A (en) Apparatus and method for measuring the amounts of oxygen and combustibles in a gaseous sample
US2883270A (en) Gas analyzers
US1591444A (en) Device
US4179921A (en) Combustion process efficiency indicator
US3370457A (en) Gas detector
US3032402A (en) Apparatus for the analysis of flue gas and protective gas
McCarter A new technique for thermal analysis of vapor‐producing reactions
SU763759A1 (ru) Устройство дл измерени концентрации взрывоопасных компонентов газовой смеси
US3055207A (en) Gas analyser
Mitvalsky The maximum sensitivity of the unbalanced Wheatstone bridge
SU712746A1 (ru) Устройство дл определени микроконцентраций горючих газов

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee