GB1258493A - - Google Patents

Info

Publication number
GB1258493A
GB1258493A GB1258493DA GB1258493A GB 1258493 A GB1258493 A GB 1258493A GB 1258493D A GB1258493D A GB 1258493DA GB 1258493 A GB1258493 A GB 1258493A
Authority
GB
United Kingdom
Prior art keywords
probe gas
reduced
circuit
emitter
fed
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
Other languages
English (en)
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 filed Critical
Publication of GB1258493A publication Critical patent/GB1258493A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Examining Or Testing Airtightness (AREA)
GB1258493D 1968-06-10 1969-05-28 Expired GB1258493A (https=)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73569568A 1968-06-10 1968-06-10

Publications (1)

Publication Number Publication Date
GB1258493A true GB1258493A (https=) 1971-12-30

Family

ID=24956816

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1258493D Expired GB1258493A (https=) 1968-06-10 1969-05-28

Country Status (5)

Country Link
US (1) US3581195A (https=)
CH (1) CH496238A (https=)
DE (1) DE1925930A1 (https=)
FR (1) FR2010549A1 (https=)
GB (1) GB1258493A (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156159A (en) * 1974-06-21 1979-05-22 Futaba Denshi Kogyo Kabushiki Kaisha Self crossed field type ion source
DE3144893A1 (de) * 1981-11-12 1983-05-19 Hans Grohe Gmbh & Co Kg, 7622 Schiltach Haltevorrichtung fuer eine handbrause
DE3306192A1 (de) * 1983-02-23 1984-08-23 Gerhard 5952 Attendorn Rosenberg Uebergangsstueck zum verbinden von kunststoffrohren mit armaturen aus metallischen werkstoffen
DE3506120A1 (de) * 1985-02-22 1986-08-28 Hans Grohe Gmbh & Co Kg, 7622 Schiltach Wandanschlussstueck fuer eine handbrause
US5526678A (en) * 1994-08-10 1996-06-18 Chicago Bridge & Iron Technical Services Company Time of flight measurement/rate of rise measurement method for remote leak detection in evacuated spaces
US6686595B2 (en) 2002-06-26 2004-02-03 Semequip Inc. Electron impact ion source
KR100864048B1 (ko) * 2002-06-26 2008-10-17 세미이큅, 인코포레이티드 이온 소스
DE102004050762A1 (de) * 2004-10-16 2006-04-20 Inficon Gmbh Verfahren zur Lecksuche
US7459677B2 (en) * 2006-02-15 2008-12-02 Varian, Inc. Mass spectrometer for trace gas leak detection with suppression of undesired ions

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735062A (en) * 1956-02-14 Q striker
US2797385A (en) * 1952-09-15 1957-06-25 Bendix Aviat Corp Altimeter
US2814018A (en) * 1954-11-26 1957-11-19 Gen Electric Measurement of volatile halogen containing components
US2972716A (en) * 1955-07-07 1961-02-21 Phillips Petroleum Co Analytical instrument utilizing ionization and selective evaporation
US3070992A (en) * 1959-05-25 1963-01-01 Robert C Nemeth Pressure gauge and method of operation
US3058057A (en) * 1960-12-16 1962-10-09 Bell Telephone Labor Inc Ionization manometer circuit
US3356937A (en) * 1964-09-28 1967-12-05 Gen Electric Null-balanced compensation system for ion gauge with emission current instabilities

Also Published As

Publication number Publication date
US3581195A (en) 1971-05-25
DE1925930A1 (de) 1969-12-11
FR2010549A1 (https=) 1970-02-20
CH496238A (de) 1970-09-15

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed