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GB681675A - Improvements in and relating to leak detectors - Google Patents

Improvements in and relating to leak detectors

Info

Publication number
GB681675A
GB681675A GB8402/51A GB840251A GB681675A GB 681675 A GB681675 A GB 681675A GB 8402/51 A GB8402/51 A GB 8402/51A GB 840251 A GB840251 A GB 840251A GB 681675 A GB681675 A GB 681675A
Authority
GB
United Kingdom
Prior art keywords
april
under test
relating
leak detectors
vapour under
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
GB8402/51A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB681675A publication Critical patent/GB681675A/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
    • G01N27/62—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
    • G01N27/68—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 electric discharge to ionise a gas
    • G01N27/70—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 electric discharge to ionise a gas and measuring current or voltage

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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

681,675. Determining presence of substances in vapours. BRITISH THOMSON-HOUSTON CO., Ltd. April 11, 1951 [April 26, 1950], No. 8402/51. Class 37. Relates to apparatus as disclosed in Specification 648,367, in which the vapour under test is drawn over a heated electrode 3 so that the presence of a substance such as an alkaline metal produces positive ions which are collected by a negatively charged electrode 5, the resulting current being measured at A. According to the invention, the inlet 15 for the vapour under test is of smaller diameter than the spacing between electrodes 3, 5.
GB8402/51A 1950-04-26 1951-04-11 Improvements in and relating to leak detectors Expired GB681675A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US681675XA 1950-04-26 1950-04-26

Publications (1)

Publication Number Publication Date
GB681675A true GB681675A (en) 1952-10-29

Family

ID=22080832

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8402/51A Expired GB681675A (en) 1950-04-26 1951-04-11 Improvements in and relating to leak detectors

Country Status (1)

Country Link
GB (1) GB681675A (en)

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