GB1444994A - Probe for detecting liquids - Google Patents

Probe for detecting liquids

Info

Publication number
GB1444994A
GB1444994A GB4863073A GB4863073A GB1444994A GB 1444994 A GB1444994 A GB 1444994A GB 4863073 A GB4863073 A GB 4863073A GB 4863073 A GB4863073 A GB 4863073A GB 1444994 A GB1444994 A GB 1444994A
Authority
GB
United Kingdom
Prior art keywords
probe
detecting liquids
liquids
detecting
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.)
Expired
Application number
GB4863073A
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.)
PERRREN B
Original Assignee
PERRREN B
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 PERRREN B filed Critical PERRREN B
Publication of GB1444994A publication Critical patent/GB1444994A/en
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

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
GB4863073A 1972-10-23 1973-10-18 Probe for detecting liquids Expired GB1444994A (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
GB1444994A true GB1444994A (en) 1976-08-04

Family

ID=25763995

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4863073A Expired GB1444994A (en) 1972-10-23 1973-10-18 Probe for detecting liquids

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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1305611A2 (en) * 2000-08-01 2003-05-02 Calgon Carbon Corporation Apparatus for detecting changes in concentrations of components of fluid mixtures

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6415646A (en) * 1987-07-09 1989-01-19 Junkosha Co Ltd Volatile liquid detecting element and volatile liquid discriminating apparatus
JPS6459149A (en) * 1987-08-31 1989-03-06 Junkosha Co Ltd Oil leak sensor
JPH01151229U (en) * 1988-04-07 1989-10-19
JPH0227560U (en) * 1988-08-11 1990-02-22
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
US5417100A (en) * 1993-03-10 1995-05-23 Hughes Aircraft Company Reversible sensor for detecting solvent vapors
US5607573A (en) * 1993-03-10 1997-03-04 Hughes Aircraft Company Method for detecting fugitive emissions
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1305611A2 (en) * 2000-08-01 2003-05-02 Calgon Carbon Corporation Apparatus for detecting changes in concentrations of components of fluid mixtures

Also Published As

Publication number Publication date
CH583905A5 (en) 1977-01-14
ATA894973A (en) 1977-06-15
JPS4996796A (en) 1974-09-12
AT341810B (en) 1978-02-27
FR2204304A5 (en) 1974-05-17
NL7314236A (en) 1974-04-25
NL168940B (en) 1981-12-16
SE411149B (en) 1979-12-03
NL168940C (en) 1982-05-17
IT995911B (en) 1975-11-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee