GB831965A - Improvements in devices for measuring the relative amount of a paramagnetic gas in a gaseous mixture - Google Patents

Improvements in devices for measuring the relative amount of a paramagnetic gas in a gaseous mixture

Info

Publication number
GB831965A
GB831965A GB8999/57A GB899957A GB831965A GB 831965 A GB831965 A GB 831965A GB 8999/57 A GB8999/57 A GB 8999/57A GB 899957 A GB899957 A GB 899957A GB 831965 A GB831965 A GB 831965A
Authority
GB
United Kingdom
Prior art keywords
filaments
gas
polepieces
paramagnetic 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
GB8999/57A
Inventor
Karl Luft
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.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
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 Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Publication of GB831965A publication Critical patent/GB831965A/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
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/24—Investigating the presence of flaws
    • 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
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/74—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables of fluids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • Electrochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

831,965. Electric indicating systems. OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AERONAUTIQUES O.N.E.R.A. March 19, 1957, No. 8999/57. Class 40 (1). The proportion of a paramagnetic gas in a mixture is determined by using the thermomagnetic effect by which a heated paramagnetic gas moves from a region of strong to a region of weak magnetic field. In the arrangement shown the gas is introduced into a passage 4 bored in the polepieces of a magnet and led to the space between the polepieces in the central part la of which the field is uniform and in the outer part 16 non-uniform. Heating is provided by filaments a1, a2' b1, b2 mounted in non-magnetic material on the ends of the polepieces. The inner filaments are more cooled by the passage of the gas radially than the outer and the outer and inner filaments are connected in a Wheatstone bridge circuit to detect the difference. The heating filaments may be wound in the form of a spiral of which the inner part forms one arm of the bridge and the outer part another.
GB8999/57A 1955-02-21 1957-03-19 Improvements in devices for measuring the relative amount of a paramagnetic gas in a gaseous mixture Expired GB831965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1023610X 1955-02-21

Publications (1)

Publication Number Publication Date
GB831965A true GB831965A (en) 1960-04-06

Family

ID=9578366

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8999/57A Expired GB831965A (en) 1955-02-21 1957-03-19 Improvements in devices for measuring the relative amount of a paramagnetic gas in a gaseous mixture

Country Status (4)

Country Link
CH (1) CH342013A (en)
DE (1) DE1023610B (en)
FR (1) FR1159562A (en)
GB (1) GB831965A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158949A (en) * 1984-05-16 1985-11-20 Instrumentarium Corp Quick response paramagnetic analyzer for measurement of the oxygen content of gases

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158949A (en) * 1984-05-16 1985-11-20 Instrumentarium Corp Quick response paramagnetic analyzer for measurement of the oxygen content of gases
US4633705A (en) * 1984-05-16 1987-01-06 Instrumentarium Corp. Quick response paramagnetic analyzer for measurement of oxygen contents of gases

Also Published As

Publication number Publication date
CH342013A (en) 1959-10-31
FR1159562A (en) 1958-06-30
DE1023610B (en) 1958-01-30

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