GB1350561A - Testing of gases for paramagnetic components - Google Patents

Testing of gases for paramagnetic components

Info

Publication number
GB1350561A
GB1350561A GB2857171A GB2857171A GB1350561A GB 1350561 A GB1350561 A GB 1350561A GB 2857171 A GB2857171 A GB 2857171A GB 2857171 A GB2857171 A GB 2857171A GB 1350561 A GB1350561 A GB 1350561A
Authority
GB
United Kingdom
Prior art keywords
chamber
gas
ducts
gases
flow
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
GB2857171A
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to ZA724004A priority Critical patent/ZA724004B/en
Publication of GB1350561A publication Critical patent/GB1350561A/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
    • G01N27/72—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)
  • 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 Magnetic Means (AREA)

Abstract

1350561 Analyzing gases magnetically SIEMENS A G 17 June 1971 [18 June 1970] 28571/71 Heading G1N An apparatus for testing a gas for paramagnetic components e. g. oxygen content of a gas mixture is arranged so that the effects of unwanted movement of the apparatus on the readings therefrom are mitigated. In the arrangement of Fig. 1 a test chamber C, Fig.4 (not shown) is arranged between poles P1, P2 which produce an alternating magnetic field overlapping part of the chamber C and duct S1. Comparison gas V applied to chamber C via ducts R1, R2, S1, S2 mixes in the region of homogeneous magnetic field between pole pieces P1, P2 with the test gas M applied via duct L2. If the two gases differ in their content of paramagnetic gas the resulting alternating pressure difference occurring between ducts S1, S2 is measured by flow sensitive sensor F in flow paths T1, T2. In accordance with the invention flow paths T1, T2 are arranged in a figure of eight manner and the plane of the ducts positioned at an angle Ï less than 90 degrees to the axis of the chamber C. Thus in the event of rotation of the apparatus or other movement there are produced in the portions of each flowpath T1, T2 opposed inertial forces on the gas which cancel out. By arranging sensor F on a plane of symmetry variations in the density of the gas in ducts T1, T2 caused by pressure fluctuations in chamber C do not affect sensor F. The flowpaths T1, T2 may be formed with a substantially circular or U-shaped portion the mid portion of which is bent back on itself, Figs.3 4 (not shown). The chamber C is flat to provide laminar flow Fig.2 (not shown) and due to the arrangement of chamber and pole pieces P1, P2 the device is independant of small changes in velocity flow.
GB2857171A 1970-06-18 1971-06-17 Testing of gases for paramagnetic components Expired GB1350561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA724004A ZA724004B (en) 1971-06-17 1972-06-12 Improvements in or relating to light sensitive materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7022807 1970-06-18

Publications (1)

Publication Number Publication Date
GB1350561A true GB1350561A (en) 1974-04-18

Family

ID=6612426

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2857171A Expired GB1350561A (en) 1970-06-18 1971-06-17 Testing of gases for paramagnetic components

Country Status (4)

Country Link
JP (1) JPS5123200B1 (en)
AT (1) AT312967B (en)
FR (1) FR2096785B2 (en)
GB (1) GB1350561A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8511618D0 (en) * 1985-05-08 1985-06-12 Servomex Ltd Gas testing apparatus
DE29616420U1 (en) * 1996-09-20 1996-12-19 Siemens AG, 80333 München Measuring device for paramagnetic measurement of the oxygen content in a measuring gas

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910280A (en) * 1972-05-25 1974-01-29

Also Published As

Publication number Publication date
FR2096785B2 (en) 1976-10-29
FR2096785A2 (en) 1972-02-25
AT312967B (en) 1974-01-25
JPS5123200B1 (en) 1976-07-15

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Legal Events

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