IT1256824B - Unita' rivelatrice di elio perfezionata. - Google Patents

Unita' rivelatrice di elio perfezionata.

Info

Publication number
IT1256824B
IT1256824B ITTO920416A ITTO920416A IT1256824B IT 1256824 B IT1256824 B IT 1256824B IT TO920416 A ITTO920416 A IT TO920416A IT TO920416 A ITTO920416 A IT TO920416A IT 1256824 B IT1256824 B IT 1256824B
Authority
IT
Italy
Prior art keywords
detector unit
perfected
helium
helium detector
sampled
Prior art date
Application number
ITTO920416A
Other languages
English (en)
Original Assignee
Varian Spa
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 Varian Spa filed Critical Varian Spa
Priority to ITTO920416A priority Critical patent/IT1256824B/it
Publication of ITTO920416A0 publication Critical patent/ITTO920416A0/it
Priority to US07/934,176 priority patent/US5325708A/en
Publication of ITTO920416A1 publication Critical patent/ITTO920416A1/it
Application granted granted Critical
Publication of IT1256824B publication Critical patent/IT1256824B/it

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

La presente invenzione si riferisce ad un'unità rivelatrice di elio perfezionata, particolarmente adatta per essere impiegata in condizioni disagevoli e in zone prive di fonti di alimentazione, la quale è dotata di mezzi elettronici di elaborazione in cui vengono implementate le funzioni di calcolo della concentrazione di elio, nella miscela di gas da campionare e di mezzi di controllo dell'unità di rivelazione e nella quale è presente una camera di campionamento (16), rivestita di materiale riflettente, dotata di intercapedine (27), sulla quale è montato un elemento filtrante (15) sinterizzato atto a raffreddare il flusso del gas campionato, uscente, proveniente da una pompa di campionamento (29) aspirante, dotata di filtro (43) contro le impurità. (Fig.4)
ITTO920416A 1992-05-14 1992-05-14 Unita' rivelatrice di elio perfezionata. IT1256824B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITTO920416A IT1256824B (it) 1992-05-14 1992-05-14 Unita' rivelatrice di elio perfezionata.
US07/934,176 US5325708A (en) 1992-05-14 1992-08-21 Detector for helium leaks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO920416A IT1256824B (it) 1992-05-14 1992-05-14 Unita' rivelatrice di elio perfezionata.

Publications (3)

Publication Number Publication Date
ITTO920416A0 ITTO920416A0 (it) 1992-05-14
ITTO920416A1 ITTO920416A1 (it) 1993-11-14
IT1256824B true IT1256824B (it) 1995-12-21

Family

ID=11410466

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO920416A IT1256824B (it) 1992-05-14 1992-05-14 Unita' rivelatrice di elio perfezionata.

Country Status (2)

Country Link
US (1) US5325708A (it)
IT (1) IT1256824B (it)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4326265A1 (de) * 1993-08-05 1995-02-09 Leybold Ag Testgasdetektor, vorzugsweise für Lecksuchgeräte, sowie Verfahren zum Betrieb eines Testgasdetektors dieser Art
FR2718029B1 (fr) * 1994-04-05 1996-06-07 Air Liquide Procédé de diffusion d'une substance odorante.
DE50015394D1 (de) * 1999-12-22 2008-11-20 Inficon Gmbh Verfahren zum betrieb eines folien-lecksuchers sowie für die durchführung dieses verfahrens geeigneter folien-lecksucher
KR100426847B1 (ko) * 2001-08-27 2004-04-13 재단법인 포항산업과학연구원 이온펌프 콘트롤러
CN100523764C (zh) 2003-06-11 2009-08-05 瓦里安有限公司 通过累积方法检漏的方法和装置
EP1631806B1 (en) * 2003-06-11 2011-04-20 Agilent Technologies, Inc. Methods and apparatus for detection of large leaks in sealed articles
DE602004008869T2 (de) * 2004-01-13 2008-06-12 Varian S.P.A., Leini Leckdetektor
US7465586B2 (en) * 2004-11-03 2008-12-16 Labone, Inc. Oral detection test for cannabinoid use
US7851504B2 (en) * 2005-03-16 2010-12-14 Allergan, Inc. Enhanced bimatoprost ophthalmic solution
US20080202210A1 (en) * 2007-02-28 2008-08-28 Varian, Inc. Test gas leak detection using a composite membrane
US7497110B2 (en) * 2007-02-28 2009-03-03 Varian, Inc. Methods and apparatus for test gas leak detection
FR2921488A1 (fr) 2007-09-26 2009-03-27 Alcatel Lucent Sas Dispositif et procede pour la detection de fuites a haute pression pr gaz traceur dans une piece a tester.
JP5364462B2 (ja) * 2009-06-19 2013-12-11 株式会社日立ハイテクノロジーズ 荷電粒子線装置
US8453493B2 (en) 2010-11-02 2013-06-04 Agilent Technologies, Inc. Trace gas sensing apparatus and methods for leak detection
CN112798193B (zh) * 2020-10-16 2022-12-13 湖南澳美佳健康科技有限公司 一种新型氦检漏仪

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2142139A5 (it) * 1971-06-14 1973-01-26 Commissariat Energie Atomique
FR2353848A1 (fr) * 1975-02-18 1977-12-30 Raffinage Cie Francaise Procede de detection quantitative specifique des composes soufres et dispositifs pour la mise en oeuvre de ce procede
US4492110A (en) * 1983-06-01 1985-01-08 Martin Marietta Corporation Ultra sensitive noble gas leak detector
US5019517A (en) * 1988-04-15 1991-05-28 Coulson Dale M System, detector and method for trace gases
IT1224604B (it) * 1988-07-27 1990-10-04 Varian Spa Rivelatore perfezionato di perdite di elio
FR2658292B1 (fr) * 1990-02-09 1994-09-16 Cit Alcatel Detecteur de fuite a helium fonctionnant a contre-courant, portable pour tester une enceinte possedant son propre groupe de pompage.

Also Published As

Publication number Publication date
US5325708A (en) 1994-07-05
ITTO920416A0 (it) 1992-05-14
ITTO920416A1 (it) 1993-11-14

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990423