SE7909477L - GASMETINSTRUMENT - Google Patents

GASMETINSTRUMENT

Info

Publication number
SE7909477L
SE7909477L SE7909477A SE7909477A SE7909477L SE 7909477 L SE7909477 L SE 7909477L SE 7909477 A SE7909477 A SE 7909477A SE 7909477 A SE7909477 A SE 7909477A SE 7909477 L SE7909477 L SE 7909477L
Authority
SE
Sweden
Prior art keywords
gas
cell
chamber
tested
supply line
Prior art date
Application number
SE7909477A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
D F Davies
D Kruger
Original Assignee
Draegerwerk Ag
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 filed Critical Draegerwerk Ag
Publication of SE7909477L publication Critical patent/SE7909477L/en

Links

Classifications

    • 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
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/497—Physical analysis of biological material of gaseous biological material, e.g. breath
    • 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
    • G01N33/0011—Sample conditioning
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Food Science & Technology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Medicinal Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Combustion & Propulsion (AREA)
  • Biophysics (AREA)
  • Hematology (AREA)
  • Urology & Nephrology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

A gas detecting or measuring device has a cell (2) containing a gas-sensitive electrical element (3) connected to an indicator device (4). At one end, the cell is connected to a supply line (6) for the gas to be tested, and, at the other end, the cell is connected to a pump chamber (9) containing a heater filament (10) and glass wool (11). When an electrical current is passed through the heater filament (10), the gas in the pump chamber (9) is heated and expands, so that a portion of the gas is expelled from the chamber. Upon cooling of the chamber (9) a sample of the gas to be tested is drawn from the supply line (6) into the cell (2). <IMAGE>
SE7909477A 1979-02-26 1979-11-16 GASMETINSTRUMENT SE7909477L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2907434 1979-02-26

Publications (1)

Publication Number Publication Date
SE7909477L true SE7909477L (en) 1980-08-27

Family

ID=6063929

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7909477A SE7909477L (en) 1979-02-26 1979-11-16 GASMETINSTRUMENT

Country Status (5)

Country Link
JP (1) JPS55146024A (en)
DD (1) DD147723A5 (en)
FR (1) FR2449878A1 (en)
GB (1) GB2044462B (en)
SE (1) SE7909477L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63136362U (en) * 1987-02-27 1988-09-07
DE3904994A1 (en) * 1989-02-18 1990-08-23 Draegerwerk Ag DEVICE FOR PROMOTING A MEASURING SAMPLE INTO THE MEASURING CHAMBER OF A PROBE AND MEASURING METHOD THEREFOR
US7062952B2 (en) * 2003-05-21 2006-06-20 General Electric Company Combustible gas detector having flow-through sensor container and method for measuring such gases
US7056098B2 (en) 2003-05-21 2006-06-06 General Electric Company Pump for supplying a gas to a sensor and methods therefor
US20140134053A1 (en) * 2012-11-14 2014-05-15 Sensirion Ag Portable electronic device with chemical sensor
KR102256488B1 (en) * 2017-09-14 2021-05-27 주식회사 엘지에너지솔루션 Gas measuring equipment for rechargeable battery test

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT989631B (en) * 1972-06-13 1975-06-10 Honda Motor Co Ltd DEVICE FOR THE IDENTIFICATION OF CHEMICAL COMPONENTS PRESET IN GAS
GB1448557A (en) * 1972-09-26 1976-09-08 Lion Lab Ltd Apparatus for detecting or measuring a constituent of a gas
US4115229A (en) * 1976-11-08 1978-09-19 Thermo-Lab Instruments, Inc. Apparatus for sampling a gaseous stream
CA1143179A (en) * 1978-11-03 1983-03-22 Thomas P. Jones Gas sampling devices

Also Published As

Publication number Publication date
JPS6226413B2 (en) 1987-06-09
DD147723A5 (en) 1981-04-15
GB2044462B (en) 1983-06-15
JPS55146024A (en) 1980-11-14
FR2449878B1 (en) 1984-04-27
GB2044462A (en) 1980-10-15
FR2449878A1 (en) 1980-09-19

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