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FR2366553A1 - Enclosure sealing testing system - uses measurement of partial pressure of helium in air extracted from evacuated enclosure - Google Patents

Enclosure sealing testing system - uses measurement of partial pressure of helium in air extracted from evacuated enclosure

Info

Publication number
FR2366553A1
FR2366553A1 FR7629567A FR7629567A FR2366553A1 FR 2366553 A1 FR2366553 A1 FR 2366553A1 FR 7629567 A FR7629567 A FR 7629567A FR 7629567 A FR7629567 A FR 7629567A FR 2366553 A1 FR2366553 A1 FR 2366553A1
Authority
FR
France
Prior art keywords
enclosure
helium
partial pressure
testing system
air
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.)
Granted
Application number
FR7629567A
Other languages
French (fr)
Other versions
FR2366553B1 (en
Inventor
Loic Tronel
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7629567A priority Critical patent/FR2366553A1/en
Publication of FR2366553A1 publication Critical patent/FR2366553A1/en
Application granted granted Critical
Publication of FR2366553B1 publication Critical patent/FR2366553B1/fr
Granted 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
    • G01M3/22—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
    • 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
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

Natural helium in the air is used to check sealing of an enclosure. A vacuum is created in the enclosure which is surrounded by air and periodic samples are taken from the enclosure. Sealing is checked by measuring partial pressure of helium in the sample. A pump (14) with valve (15) is used to create a vacuum in an enclosure (10) which is surrounded by air (12). A measuring chamber (16) is evacuated through valves (26, 40) by a pump (32). An open valve (20) allows measuring chamber pressure to stabilise then the valve is closed. An outlet valve (26) is opened to allow a measuring system (30) to sense partial pressure of helium. Calibration is performed using known quantity of helium from a source (42).
FR7629567A 1976-10-01 1976-10-01 Enclosure sealing testing system - uses measurement of partial pressure of helium in air extracted from evacuated enclosure Granted FR2366553A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7629567A FR2366553A1 (en) 1976-10-01 1976-10-01 Enclosure sealing testing system - uses measurement of partial pressure of helium in air extracted from evacuated enclosure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7629567A FR2366553A1 (en) 1976-10-01 1976-10-01 Enclosure sealing testing system - uses measurement of partial pressure of helium in air extracted from evacuated enclosure

Publications (2)

Publication Number Publication Date
FR2366553A1 true FR2366553A1 (en) 1978-04-28
FR2366553B1 FR2366553B1 (en) 1979-01-12

Family

ID=9178286

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7629567A Granted FR2366553A1 (en) 1976-10-01 1976-10-01 Enclosure sealing testing system - uses measurement of partial pressure of helium in air extracted from evacuated enclosure

Country Status (1)

Country Link
FR (1) FR2366553A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461249A1 (en) * 1979-07-13 1981-01-30 Pfeiffer Vakuumtechnik METHOD FOR MEASURING LEAKAGE FLOWS
FR2503364A1 (en) * 1981-04-03 1982-10-08 Commissariat Energie Atomique Leakage test assembly for gas filled enclosure - releases known volume of oxygen into circuit for measurement by oxygen meter after time interval
FR2522820A1 (en) * 1982-03-02 1983-09-09 Utilisation Ration Gaz Measurement of leaks in gas bottle, e.g. LPG bottle - using sensor for increase of gas in bell placed around leak zone
US4534204A (en) * 1983-06-01 1985-08-13 Martin Marietta Corporation Calibration method for ultra sensitive noble gas leak detector
US4998435A (en) * 1983-01-18 1991-03-12 Damco Testers, Inc. Method and apparatus for leak testing of pipe
EP0432305A1 (en) * 1989-12-15 1991-06-19 ALCATEL HOCHVAKUUMTECHNIK GmbH Method and apparatus for leak detection
FR2767197A1 (en) * 1997-08-11 1999-02-12 Alsthom Cge Alcatel GAS ANALYZER
EP1004866A1 (en) * 1998-11-26 2000-05-31 Alcatel Procedure and device for detecting leaks in car radiators

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1124266B (en) * 1961-01-07 1962-02-22 Knapsack Ag Procedure for testing vacuum systems for leaks
FR2153362A1 (en) * 1971-09-24 1973-05-04 Varian Associates

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1124266B (en) * 1961-01-07 1962-02-22 Knapsack Ag Procedure for testing vacuum systems for leaks
FR2153362A1 (en) * 1971-09-24 1973-05-04 Varian Associates

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461249A1 (en) * 1979-07-13 1981-01-30 Pfeiffer Vakuumtechnik METHOD FOR MEASURING LEAKAGE FLOWS
FR2503364A1 (en) * 1981-04-03 1982-10-08 Commissariat Energie Atomique Leakage test assembly for gas filled enclosure - releases known volume of oxygen into circuit for measurement by oxygen meter after time interval
FR2522820A1 (en) * 1982-03-02 1983-09-09 Utilisation Ration Gaz Measurement of leaks in gas bottle, e.g. LPG bottle - using sensor for increase of gas in bell placed around leak zone
US4998435A (en) * 1983-01-18 1991-03-12 Damco Testers, Inc. Method and apparatus for leak testing of pipe
US4534204A (en) * 1983-06-01 1985-08-13 Martin Marietta Corporation Calibration method for ultra sensitive noble gas leak detector
US5131263A (en) * 1989-12-15 1992-07-21 Alcatel Hochvakuumtechnik Gmbh Device and a method for detecting leaks
EP0432305A1 (en) * 1989-12-15 1991-06-19 ALCATEL HOCHVAKUUMTECHNIK GmbH Method and apparatus for leak detection
FR2767197A1 (en) * 1997-08-11 1999-02-12 Alsthom Cge Alcatel GAS ANALYZER
WO1999008086A1 (en) * 1997-08-11 1999-02-18 Alcatel Gas analysing apparatus
US6263724B1 (en) 1997-08-11 2001-07-24 Alcatel Gas analyzing apparatus
EP1004866A1 (en) * 1998-11-26 2000-05-31 Alcatel Procedure and device for detecting leaks in car radiators
FR2786566A1 (en) * 1998-11-26 2000-06-02 Cit Alcatel METHOD AND DEVICE FOR DETECTING LEAKS ON AUTOMOTIVE EXCHANGERS
US6314794B1 (en) 1998-11-26 2001-11-13 Alcatel Method and apparatus for detecting leaks in heat exchangers for motor vehicles

Also Published As

Publication number Publication date
FR2366553B1 (en) 1979-01-12

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Legal Events

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