GB1358368A - Apparatus for detection of combustible constituents in gas mixtures - Google Patents

Apparatus for detection of combustible constituents in gas mixtures

Info

Publication number
GB1358368A
GB1358368A GB100373A GB100373A GB1358368A GB 1358368 A GB1358368 A GB 1358368A GB 100373 A GB100373 A GB 100373A GB 100373 A GB100373 A GB 100373A GB 1358368 A GB1358368 A GB 1358368A
Authority
GB
United Kingdom
Prior art keywords
gas
chamber
relay
expelled
bellows
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
GB100373A
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.)
VNII ANALITECHESKOGO PRIBO ROS
Original Assignee
VNII ANALITECHESKOGO PRIBO ROS
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
Priority to DE19722263040 priority Critical patent/DE2263040C3/en
Priority claimed from DE19722263040 external-priority patent/DE2263040C3/en
Application filed by VNII ANALITECHESKOGO PRIBO ROS filed Critical VNII ANALITECHESKOGO PRIBO ROS
Priority to GB100373A priority patent/GB1358368A/en
Priority to FR7303387A priority patent/FR2216878A5/fr
Publication of GB1358368A publication Critical patent/GB1358368A/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

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)

Abstract

1358368 Detecting combustible gases electrically VSESOJUZNY NAUCHNOISSLEDOVATELSKY INSTITUT ANALITICHESKOGO PRIBO ROSTROENIA 8 Jan 1973 1003/73 Heading G1N An apparatus for measuring alcohol in breath comprises a gas sampling unit including a calibrated vessel 9 divided by a bellows 10 into a gas sampling chamber 11 and an air chamber 12; the gas chamber being filled by gas flow from mouthpiece 7, moisture separator 8 electro-pneumatic relay 18 and non-return valve 14 so that as the gas chamber fills fresh air is expelled from air chamber 12 via duct 23 to purge reaction chamber 17 of the products of any previous analysis; when the gas chamber is filled means 13 closes contacts of switch 29 to actuate a system of relays and motor-controlled switches Fig.3 (not shown) whereby the relay 18 is switched to block further ingress of gas to the chamber 11, the 200 c.c. gas sample therein being expelled to the reaction chamber 17, due to weight of the means 13 collapsing the bellows, by way of duct 16 and relay 18, and absorbed on an aluminium oxide body 25, next a heating coil 26 is energized and also a bridge circuit Fig. 5 (not shown) including a catalytic temperature sensitive resistance element 27 and a non- catalytic temperature sensitive resistance element 28 so that the gas is desorbed from the body and its combustible constituents burnt on the bridge element, the resulting signal being passed to an indication unit. The apparatus is maintained at a temperature of 45-50‹C by a heating element 30.
GB100373A 1972-12-22 1973-01-08 Apparatus for detection of combustible constituents in gas mixtures Expired GB1358368A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19722263040 DE2263040C3 (en) 1972-12-22 Device for the automatic detection of flammable components in gas mixtures
GB100373A GB1358368A (en) 1972-12-22 1973-01-08 Apparatus for detection of combustible constituents in gas mixtures
FR7303387A FR2216878A5 (en) 1972-12-22 1973-01-31

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19722263040 DE2263040C3 (en) 1972-12-22 Device for the automatic detection of flammable components in gas mixtures
GB100373A GB1358368A (en) 1972-12-22 1973-01-08 Apparatus for detection of combustible constituents in gas mixtures
FR7303387A FR2216878A5 (en) 1972-12-22 1973-01-31

Publications (1)

Publication Number Publication Date
GB1358368A true GB1358368A (en) 1974-07-03

Family

ID=27184918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB100373A Expired GB1358368A (en) 1972-12-22 1973-01-08 Apparatus for detection of combustible constituents in gas mixtures

Country Status (2)

Country Link
FR (1) FR2216878A5 (en)
GB (1) GB1358368A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0133502A2 (en) * 1983-08-05 1985-02-27 Kraftwerk Union Aktiengesellschaft Probe for the detection of combustible gases
WO1996002826A1 (en) * 1994-07-19 1996-02-01 European Atomic Energy Community (Euratom) Device and method for measuring reactive components in gases
GB2435099A (en) * 2006-02-14 2007-08-15 Autoliv Dev Means for monitoring accuracy of measurements of gas contaminants
CN1333246C (en) * 2000-06-05 2007-08-22 松下电器产业株式会社 Gas concentration sensor, hydrogen purification unit using this and cell system
GB2499322A (en) * 2012-02-08 2013-08-14 Draeger Safety Ag & Co Kgaa Catalytic gas sensor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0133502A2 (en) * 1983-08-05 1985-02-27 Kraftwerk Union Aktiengesellschaft Probe for the detection of combustible gases
EP0133502A3 (en) * 1983-08-05 1985-04-03 Kraftwerk Union Aktiengesellschaft Probe for the detection of combustible gases
WO1996002826A1 (en) * 1994-07-19 1996-02-01 European Atomic Energy Community (Euratom) Device and method for measuring reactive components in gases
CN1333246C (en) * 2000-06-05 2007-08-22 松下电器产业株式会社 Gas concentration sensor, hydrogen purification unit using this and cell system
GB2435099A (en) * 2006-02-14 2007-08-15 Autoliv Dev Means for monitoring accuracy of measurements of gas contaminants
GB2499322A (en) * 2012-02-08 2013-08-14 Draeger Safety Ag & Co Kgaa Catalytic gas sensor
CN103245700A (en) * 2012-02-08 2013-08-14 德拉格安全股份两合公司 Gas sensor
GB2499322B (en) * 2012-02-08 2014-03-05 Draeger Safety Ag & Co Kgaa Gas sensor
US9201032B2 (en) 2012-02-08 2015-12-01 Dräger Safety AG & Co. KGaA Gas sensor
CN103245700B (en) * 2012-02-08 2016-05-11 德拉格安全股份两合公司 Gas sensor

Also Published As

Publication number Publication date
DE2263040B2 (en) 1976-04-01
DE2263040A1 (en) 1974-07-11
FR2216878A5 (en) 1974-08-30

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Legal Events

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