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
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
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)
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)
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 |
DE602004032333D1 (de) * | 2003-06-11 | 2011-06-01 | Agilent Technologies Inc | Vorrichtung und verfahren zur detektion von grossen leckagen in abgedichteten gegenständen |
JP4511543B2 (ja) * | 2003-06-11 | 2010-07-28 | バリアン・インコーポレイテッド | 蓄積法による漏れ検出装置および方法 |
EP1555520B1 (en) * | 2004-01-13 | 2007-09-12 | VARIAN S.p.A. | Leak detector |
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)
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. |
-
1992
- 1992-05-14 IT ITTO920416A patent/IT1256824B/it active IP Right Grant
- 1992-08-21 US US07/934,176 patent/US5325708A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ITTO920416A1 (it) | 1993-11-14 |
US5325708A (en) | 1994-07-05 |
ITTO920416A0 (it) | 1992-05-14 |
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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 |