GB974924A - Improvements in or relating to apparatus for detecting gaseous halogen - Google Patents

Improvements in or relating to apparatus for detecting gaseous halogen

Info

Publication number
GB974924A
GB974924A GB3344161A GB3344161A GB974924A GB 974924 A GB974924 A GB 974924A GB 3344161 A GB3344161 A GB 3344161A GB 3344161 A GB3344161 A GB 3344161A GB 974924 A GB974924 A GB 974924A
Authority
GB
United Kingdom
Prior art keywords
tube
halogen
resistance
relating
measured
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
GB3344161A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3344161A priority Critical patent/GB974924A/en
Publication of GB974924A publication Critical patent/GB974924A/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
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • 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
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G01N27/626—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using heat to ionise a 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 Fluid Adsorption Or Reactions (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

974, 924. Detecting impurities in fluids. R. LOTTENBACH. Sept. 19, 1961, No. 33441/61. Heading G1N. In a halogen gas detector the hot resistance of a porcelain or quartz tube 21, Fig. 2 between spaced electrodes 22, 23 is measured by a meter. 26 to indicate the presence of halogen in the vicinity of the tube, the tube being heated to a semiconductive state by a coil 25. In a modified arrange - ment, described with reference to Fig. 1 (not shown), the resistance between a centre tap on the heater coil which is wound around the outside of a tube and an electrode on the inner surface, is measured. Changes of body conductivity and surface resistance, resulting from ionization of the halogen by the hot body are said to occur as a result of ion absorption.
GB3344161A 1961-09-19 1961-09-19 Improvements in or relating to apparatus for detecting gaseous halogen Expired GB974924A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3344161A GB974924A (en) 1961-09-19 1961-09-19 Improvements in or relating to apparatus for detecting gaseous halogen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3344161A GB974924A (en) 1961-09-19 1961-09-19 Improvements in or relating to apparatus for detecting gaseous halogen

Publications (1)

Publication Number Publication Date
GB974924A true GB974924A (en) 1964-11-11

Family

ID=10352997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3344161A Expired GB974924A (en) 1961-09-19 1961-09-19 Improvements in or relating to apparatus for detecting gaseous halogen

Country Status (1)

Country Link
GB (1) GB974924A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0015495A1 (en) * 1979-02-27 1980-09-17 Hewlett-Packard Company Electron capture detector
EP0022366A1 (en) * 1979-07-04 1981-01-14 Matsushita Electric Industrial Co., Ltd. A sensor circuit including a sensing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0015495A1 (en) * 1979-02-27 1980-09-17 Hewlett-Packard Company Electron capture detector
EP0022366A1 (en) * 1979-07-04 1981-01-14 Matsushita Electric Industrial Co., Ltd. A sensor circuit including a sensing device

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