GB1544818A - Gas measuring apparatus and methods - Google Patents

Gas measuring apparatus and methods

Info

Publication number
GB1544818A
GB1544818A GB5472/76A GB547276A GB1544818A GB 1544818 A GB1544818 A GB 1544818A GB 5472/76 A GB5472/76 A GB 5472/76A GB 547276 A GB547276 A GB 547276A GB 1544818 A GB1544818 A GB 1544818A
Authority
GB
United Kingdom
Prior art keywords
methods
measuring apparatus
gas measuring
gas
measuring
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
GB5472/76A
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 GB1544818A publication Critical patent/GB1544818A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/10—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
    • G01P5/12—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables using variation of resistance of a heated conductor
    • 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
    • G01N27/18—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 changes in the thermal conductivity of a surrounding material to be tested

Landscapes

  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
GB5472/76A 1975-02-11 1976-02-11 Gas measuring apparatus and methods Expired GB1544818A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2505669A DE2505669B2 (de) 1975-02-11 1975-02-11 Verfahren und Gasanalysator zur Messung der Wärmeleitfähigkeit eines Gasgemisches

Publications (1)

Publication Number Publication Date
GB1544818A true GB1544818A (en) 1979-04-25

Family

ID=5938587

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5472/76A Expired GB1544818A (en) 1975-02-11 1976-02-11 Gas measuring apparatus and methods

Country Status (6)

Country Link
DE (1) DE2505669B2 (da)
DK (1) DK255875A (da)
FR (1) FR2301007A1 (da)
GB (1) GB1544818A (da)
NL (1) NL7506344A (da)
SE (1) SE426990B (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8771598B2 (en) 2009-01-02 2014-07-08 Sensirion Ag Ammonia storage system
US9341499B2 (en) 2010-06-04 2016-05-17 Sensirion Ag Sensor system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4849636A (en) * 1988-05-18 1989-07-18 Mine Safety Appliances Company Analyzer with compensation
DE102005000964B3 (de) * 2005-01-07 2006-07-06 Dräger Medical AG & Co. KG Vorrichtung und Verfahren zur Messung einer Volumenstromdifferenz
EP3301441B1 (de) * 2016-09-30 2018-11-07 Siemens Aktiengesellschaft Wärmeleitfähigkeitsdetektor für gasgemische mit mindestens drei komponenten

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8771598B2 (en) 2009-01-02 2014-07-08 Sensirion Ag Ammonia storage system
US9341499B2 (en) 2010-06-04 2016-05-17 Sensirion Ag Sensor system

Also Published As

Publication number Publication date
FR2301007B1 (da) 1980-01-25
NL7506344A (nl) 1976-08-13
SE7511016L (sv) 1976-08-12
DE2505669C3 (da) 1979-08-02
FR2301007A1 (fr) 1976-09-10
DE2505669A1 (de) 1976-09-02
SE426990B (sv) 1983-02-21
DK255875A (da) 1976-08-12
DE2505669B2 (de) 1978-11-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930211