FR2139821B1 - - Google Patents

Info

Publication number
FR2139821B1
FR2139821B1 FR727211950A FR7211950A FR2139821B1 FR 2139821 B1 FR2139821 B1 FR 2139821B1 FR 727211950 A FR727211950 A FR 727211950A FR 7211950 A FR7211950 A FR 7211950A FR 2139821 B1 FR2139821 B1 FR 2139821B1
Authority
FR
France
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
FR727211950A
Other languages
French (fr)
Other versions
FR2139821A1 (enExample
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.)
Atomic Energy of Canada Ltd AECL
Original Assignee
Atomic Energy of Canada Ltd AECL
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 Atomic Energy of Canada Ltd AECL filed Critical Atomic Energy of Canada Ltd AECL
Publication of FR2139821A1 publication Critical patent/FR2139821A1/fr
Application granted granted Critical
Publication of FR2139821B1 publication Critical patent/FR2139821B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/404—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors
    • G01N27/4045—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors for gases other than oxygen
    • 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
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • 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
    • 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
    • G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Examining Or Testing Airtightness (AREA)
FR727211950A 1971-05-31 1972-04-05 Expired FR2139821B1 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA114373 1971-05-31

Publications (2)

Publication Number Publication Date
FR2139821A1 FR2139821A1 (enExample) 1973-01-12
FR2139821B1 true FR2139821B1 (enExample) 1973-07-13

Family

ID=4089848

Family Applications (1)

Application Number Title Priority Date Filing Date
FR727211950A Expired FR2139821B1 (enExample) 1971-05-31 1972-04-05

Country Status (7)

Country Link
US (1) US3771349A (enExample)
JP (1) JPS5438919B1 (enExample)
CA (1) CA931633A (enExample)
DE (1) DE2217625C3 (enExample)
FR (1) FR2139821B1 (enExample)
GB (1) GB1363571A (enExample)
NL (1) NL149286B (enExample)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4673652A (en) * 1982-10-12 1987-06-16 Baker Oil Tools, Inc. Method of testing and reconditioning insulating tubular conduits
GB2246633A (en) * 1990-07-11 1992-02-05 Brownell Limited Improvements in or relating to leak location
US5417105A (en) * 1994-02-18 1995-05-23 Hughes Aircraft Company Flow accelerator for leak detector probe
US5687606A (en) * 1996-01-04 1997-11-18 Boart Longyear Company Moisture detector
SE518522C2 (sv) * 2001-03-21 2002-10-22 Sensistor Ab Metod och anordning vid täthetsprovning och läcksökning
EP1342998A3 (de) * 2002-03-08 2006-01-18 UST Umweltsensortechnik GmbH Verfahren und Anordnung zur Erkennung von Leckagen an einem gasgefüllten System
DE10315925B4 (de) * 2003-04-08 2012-01-05 Ust Umweltsensortechnik Gmbh Verfahren und Anordnung zur Erkennung von Leckagen an einem gasgefüllten System
US20060266102A1 (en) * 2005-05-25 2006-11-30 Tolliver Charlie L System, apparatus and method for detecting unknown chemical compounds
US8962200B2 (en) * 2006-02-15 2015-02-24 Ford Motor Company Humidity measuring device and method
US8074490B2 (en) * 2006-08-03 2011-12-13 Ut-Battelle Llc Clandestine grave detector
US7752890B2 (en) * 2007-11-08 2010-07-13 Battelle Memorial Institute Method and apparatus for continuous fluid leak monitoring and detection in analytical instruments and instrument systems
US8726719B2 (en) 2010-07-31 2014-05-20 Ut-Battelle, Llc Light-weight analyzer for odor recognition
CN103604568B (zh) * 2013-11-18 2015-12-02 北京卫星环境工程研究所 航天器检漏用的氦质谱检漏仪吸枪
US9975646B2 (en) * 2015-07-28 2018-05-22 Ppg Industries Ohio, Inc. Aerospace transparency having moisture sensors
CN107144598B (zh) * 2017-04-13 2019-10-11 西安交通大学 一种基于动态加热的流动湿蒸汽湿度传感器及测量方法
FR3069639B1 (fr) * 2017-07-26 2019-08-30 Pfeiffer Vacuum Sonde de reniflage, detecteur de fuites et procede de detection de fuites

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681571A (en) * 1949-03-15 1954-06-22 Gen Electric Electrical moisture indicator
US2947166A (en) * 1956-11-05 1960-08-02 Ca Atomic Energy Ltd Vapour leak detector
US3186225A (en) * 1959-07-29 1965-06-01 Union Carbide Corp Moisture sensing method and apparatus
US3522732A (en) * 1967-10-19 1970-08-04 Atmos Fritzsching & Co Gmbh Sensing element for hygrometers

Also Published As

Publication number Publication date
US3771349A (en) 1973-11-13
DE2217625B2 (de) 1974-09-19
NL149286B (nl) 1976-04-15
JPS5438919B1 (enExample) 1979-11-24
DE2217625A1 (de) 1972-12-14
FR2139821A1 (enExample) 1973-01-12
NL7203737A (enExample) 1972-12-04
CA931633A (en) 1973-08-07
GB1363571A (en) 1974-08-14
DE2217625C3 (de) 1975-06-05

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Legal Events

Date Code Title Description
ST Notification of lapse