FR2444937A1 - LEAK DETECTOR FOR SEALED ENCLOSURE - Google Patents

LEAK DETECTOR FOR SEALED ENCLOSURE

Info

Publication number
FR2444937A1
FR2444937A1 FR7930499A FR7930499A FR2444937A1 FR 2444937 A1 FR2444937 A1 FR 2444937A1 FR 7930499 A FR7930499 A FR 7930499A FR 7930499 A FR7930499 A FR 7930499A FR 2444937 A1 FR2444937 A1 FR 2444937A1
Authority
FR
France
Prior art keywords
electrodes
hand
layer
leak detector
sealed enclosure
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
FR7930499A
Other languages
French (fr)
Other versions
FR2444937B1 (en
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.)
Klein Schanzlin and Becker AG
Original Assignee
Klein Schanzlin and Becker AG
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 Klein Schanzlin and Becker AG filed Critical Klein Schanzlin and Becker AG
Publication of FR2444937A1 publication Critical patent/FR2444937A1/en
Application granted granted Critical
Publication of FR2444937B1 publication Critical patent/FR2444937B1/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
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Motor Or Generator Frames (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The leak indicator is designed, in particular, for winding spaces of electric motors for submersible-motor pumps. Between electrodes, which conduct a signal current when bridged, there is arranged a layer which initially is electrically insulating but is electroconductive after absorbing leakage fluid. So as to ensure, on the one hand, a reliable indication in the case of a hazardous leakage amount, but on the other hand to avoid false alarms due to nonhazardous proportions of moisture, the layer (3) arranged between the electrodes (1, 2) consists of oil-impregnated asbestos.
FR7930499A 1978-12-23 1979-12-12 LEAK DETECTOR FOR SEALED ENCLOSURE Granted FR2444937A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2856036A DE2856036C3 (en) 1978-12-23 1978-12-23 Water leak detector for sealed rooms

Publications (2)

Publication Number Publication Date
FR2444937A1 true FR2444937A1 (en) 1980-07-18
FR2444937B1 FR2444937B1 (en) 1983-01-28

Family

ID=6058312

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7930499A Granted FR2444937A1 (en) 1978-12-23 1979-12-12 LEAK DETECTOR FOR SEALED ENCLOSURE

Country Status (8)

Country Link
AT (1) AT363554B (en)
BE (1) BE880802A (en)
CH (1) CH643066A5 (en)
DE (1) DE2856036C3 (en)
FR (1) FR2444937A1 (en)
IT (1) IT1126642B (en)
SE (1) SE445859B (en)
YU (1) YU41686B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3094487A1 (en) * 2019-03-28 2020-10-02 Airbus Helicopters Damage detection device, vehicle and damage detection method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10314923B4 (en) * 2003-04-01 2007-03-22 Carl Freudenberg Kg Device for detecting a leak
DE102004040106B3 (en) * 2004-07-26 2006-04-27 Carl Freudenberg Kg Device for detecting a leak

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911255U (en) * 1964-12-30 1965-03-04 Kernforschung Gmbh Ges Fuer WET SENSOR.
LU50035A1 (en) * 1965-12-10 1966-02-10
DE1926000A1 (en) * 1968-05-21 1969-11-27 Girling Ltd Sealing separating piston

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2056085A (en) * 1930-06-18 1936-09-29 John J Alles Electric cable
US3721970A (en) * 1971-10-06 1973-03-20 Atomic Energy Commission Alkali metal leak detector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911255U (en) * 1964-12-30 1965-03-04 Kernforschung Gmbh Ges Fuer WET SENSOR.
LU50035A1 (en) * 1965-12-10 1966-02-10
DE1926000A1 (en) * 1968-05-21 1969-11-27 Girling Ltd Sealing separating piston

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3094487A1 (en) * 2019-03-28 2020-10-02 Airbus Helicopters Damage detection device, vehicle and damage detection method

Also Published As

Publication number Publication date
DE2856036C3 (en) 1981-08-13
AT363554B (en) 1981-08-10
SE7909974L (en) 1980-06-24
YU41686B (en) 1987-12-31
IT7928280A0 (en) 1979-12-20
ATA780679A (en) 1981-01-15
BE880802A (en) 1980-04-16
SE445859B (en) 1986-07-21
FR2444937B1 (en) 1983-01-28
IT1126642B (en) 1986-05-21
DE2856036B2 (en) 1980-10-23
CH643066A5 (en) 1984-05-15
DE2856036A1 (en) 1980-06-26
YU304879A (en) 1982-06-30

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Legal Events

Date Code Title Description
ST Notification of lapse