FR2204304A5 - - Google Patents

Info

Publication number
FR2204304A5
FR2204304A5 FR7337711A FR7337711A FR2204304A5 FR 2204304 A5 FR2204304 A5 FR 2204304A5 FR 7337711 A FR7337711 A FR 7337711A FR 7337711 A FR7337711 A FR 7337711A FR 2204304 A5 FR2204304 A5 FR 2204304A5
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
FR7337711A
Other languages
French (fr)
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.)
PERREN BENNO CH
Original Assignee
PERREN BENNO CH
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
Priority claimed from DE19722251952 external-priority patent/DE2251952C3/en
Priority claimed from DE19732344778 external-priority patent/DE2344778C3/en
Application filed by PERREN BENNO CH filed Critical PERREN BENNO CH
Application granted granted Critical
Publication of FR2204304A5 publication Critical patent/FR2204304A5/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
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
    • G01N27/126—Composition of the body, e.g. the composition of its sensitive layer comprising organic polymers
    • 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
    • G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
    • G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means
    • 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
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/002—Inhomogeneous material in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/002—Inhomogeneous material in general
    • H01B3/004—Inhomogeneous material in general with conductive additives or conductive layers
FR7337711A 1972-10-23 1973-10-23 Expired FR2204304A5 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722251952 DE2251952C3 (en) 1972-10-23 1972-10-23 Probe for the detection of organic liquids
DE19732344778 DE2344778C3 (en) 1973-09-05 Probe for the detection of organic liquids

Publications (1)

Publication Number Publication Date
FR2204304A5 true FR2204304A5 (en) 1974-05-17

Family

ID=25763995

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7337711A Expired FR2204304A5 (en) 1972-10-23 1973-10-23

Country Status (8)

Country Link
JP (1) JPS4996796A (en)
AT (1) AT341810B (en)
CH (1) CH583905A5 (en)
FR (1) FR2204304A5 (en)
GB (1) GB1444994A (en)
IT (1) IT995911B (en)
NL (1) NL168940C (en)
SE (1) SE411149B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298463A2 (en) * 1987-07-09 1989-01-11 Junkosha Co. Ltd. Vaporizable liquid detection element
EP0306183A2 (en) * 1987-08-31 1989-03-08 Junkosha Co. Ltd. Oil leakage sensor
EP0337630A1 (en) * 1988-04-07 1989-10-18 Junkosha Co. Ltd. Oil detection
EP0354673A2 (en) * 1988-08-11 1990-02-14 Junkosha Co. Ltd. A solvent detecting sensor
EP0726459A1 (en) * 1993-03-10 1996-08-14 Hughes Aircraft Company Fugitive emissions sensor
US5607573A (en) * 1993-03-10 1997-03-04 Hughes Aircraft Company Method for detecting fugitive emissions

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT403527B (en) * 1990-03-09 1998-03-25 E & E Elektronik Gmbh Resistive humidity sensor based on a swellable plastic, and method of producing a resistive humidity sensor
US6422059B1 (en) * 2000-08-01 2002-07-23 Calgon Carbon Corporation Apparatus for detecting changes in concentrations of components of fluid mixtures
JP2005201847A (en) * 2004-01-19 2005-07-28 Mitsubishi Cable Ind Ltd Sensor for detecting organic liquid of low-molecular weight

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH580279A5 (en) * 1971-10-04 1976-09-30 Foerderung Forschung Gmbh

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298463A2 (en) * 1987-07-09 1989-01-11 Junkosha Co. Ltd. Vaporizable liquid detection element
EP0298463A3 (en) * 1987-07-09 1989-09-20 Junkosha Co. Ltd. Vaporizable liquid detection element
EP0306183A2 (en) * 1987-08-31 1989-03-08 Junkosha Co. Ltd. Oil leakage sensor
EP0306183A3 (en) * 1987-08-31 1990-05-09 Junkosha Co. Ltd. Oil leakage sensor
EP0337630A1 (en) * 1988-04-07 1989-10-18 Junkosha Co. Ltd. Oil detection
EP0354673A2 (en) * 1988-08-11 1990-02-14 Junkosha Co. Ltd. A solvent detecting sensor
EP0354673A3 (en) * 1988-08-11 1990-05-23 Junkosha Co. Ltd. A solvent detecting sensor
EP0726459A1 (en) * 1993-03-10 1996-08-14 Hughes Aircraft Company Fugitive emissions sensor
US5607573A (en) * 1993-03-10 1997-03-04 Hughes Aircraft Company Method for detecting fugitive emissions

Also Published As

Publication number Publication date
SE411149B (en) 1979-12-03
GB1444994A (en) 1976-08-04
CH583905A5 (en) 1977-01-14
JPS4996796A (en) 1974-09-12
NL168940B (en) 1981-12-16
IT995911B (en) 1975-11-20
NL168940C (en) 1982-05-17
ATA894973A (en) 1977-06-15
NL7314236A (en) 1974-04-25
AT341810B (en) 1978-02-27

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Legal Events

Date Code Title Description
ST Notification of lapse