FR2207598A5 - Mass spectrometry leak testing - is rapid and does not impose mechanical stresses of vacuum testing - Google Patents

Mass spectrometry leak testing - is rapid and does not impose mechanical stresses of vacuum testing

Info

Publication number
FR2207598A5
FR2207598A5 FR7241026A FR7241026A FR2207598A5 FR 2207598 A5 FR2207598 A5 FR 2207598A5 FR 7241026 A FR7241026 A FR 7241026A FR 7241026 A FR7241026 A FR 7241026A FR 2207598 A5 FR2207598 A5 FR 2207598A5
Authority
FR
France
Prior art keywords
vessel
testing
rapid
mass spectrometry
mechanical stresses
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
FR7241026A
Other languages
French (fr)
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.)
VEECO SA
Original Assignee
VEECO SA
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 VEECO SA filed Critical VEECO SA
Priority to FR7241026A priority Critical patent/FR2207598A5/en
Application granted granted Critical
Publication of FR2207598A5 publication Critical patent/FR2207598A5/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
    • G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
    • G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/226—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

Tracer gas usually helium is sprayed on the exterior of a vessel to be leak-tested, the pressure inside the vessel having been reduced to slightly below atmospheric by a suction pump. The line between the vessel and the pump goes via a tee junction having a branch leading to a mass spectrometer through a selective membrane which is permeable to tracer gas but not to other gases in the vessel. Because of the very slight reduction of vessel pressure, sensitive testing of industrial vessels and pipe systems can be carried out very rapidly without the stresses associated with high vacuum testing techniques.
FR7241026A 1972-11-17 1972-11-17 Mass spectrometry leak testing - is rapid and does not impose mechanical stresses of vacuum testing Expired FR2207598A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7241026A FR2207598A5 (en) 1972-11-17 1972-11-17 Mass spectrometry leak testing - is rapid and does not impose mechanical stresses of vacuum testing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7241026A FR2207598A5 (en) 1972-11-17 1972-11-17 Mass spectrometry leak testing - is rapid and does not impose mechanical stresses of vacuum testing

Publications (1)

Publication Number Publication Date
FR2207598A5 true FR2207598A5 (en) 1974-06-14

Family

ID=9107347

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7241026A Expired FR2207598A5 (en) 1972-11-17 1972-11-17 Mass spectrometry leak testing - is rapid and does not impose mechanical stresses of vacuum testing

Country Status (1)

Country Link
FR (1) FR2207598A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2283431A1 (en) * 1974-08-28 1976-03-26 Leybold Heraeus Gmbh & Co Kg LEAK DETECTOR
EP0047324A1 (en) * 1980-03-10 1982-03-17 Nihonsanso Kabushiki Kaisha Leakage detection method using helium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2283431A1 (en) * 1974-08-28 1976-03-26 Leybold Heraeus Gmbh & Co Kg LEAK DETECTOR
EP0047324A1 (en) * 1980-03-10 1982-03-17 Nihonsanso Kabushiki Kaisha Leakage detection method using helium
US4419882A (en) * 1980-03-10 1983-12-13 Nihonsanso Kabushiki Kaisha Leakage detection method using helium
EP0047324A4 (en) * 1980-03-10 1983-12-23 Nippon Oxygen Co Ltd Leakage detection method using helium.

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Legal Events

Date Code Title Description
ST Notification of lapse