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DE3880375D1 - Verzweigtes sensorsystem. - Google Patents

Verzweigtes sensorsystem.

Info

Publication number
DE3880375D1
DE3880375D1 DE8888304957T DE3880375T DE3880375D1 DE 3880375 D1 DE3880375 D1 DE 3880375D1 DE 8888304957 T DE8888304957 T DE 8888304957T DE 3880375 T DE3880375 T DE 3880375T DE 3880375 D1 DE3880375 D1 DE 3880375D1
Authority
DE
Germany
Prior art keywords
insulated
conductors
insulated conductors
trunk line
branch
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 - Fee Related
Application number
DE8888304957T
Other languages
English (en)
Other versions
DE3880375T2 (de
Inventor
Heinrich Koppitsch
Francis Sparling
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.)
Raychem Corp
Original Assignee
Raychem Corp
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 Raychem Corp filed Critical Raychem Corp
Publication of DE3880375D1 publication Critical patent/DE3880375D1/de
Application granted granted Critical
Publication of DE3880375T2 publication Critical patent/DE3880375T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
    • 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
    • G01M3/165—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means by means of cables or similar elongated devices, e.g. tapes
    • 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
    • G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Electric Cable Installation (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Emergency Alarm Devices (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Locating Faults (AREA)
  • Testing Of Coins (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
DE8888304957T 1987-06-03 1988-05-31 Verzweigtes sensorsystem. Expired - Fee Related DE3880375T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/057,459 US4843327A (en) 1987-06-03 1987-06-03 Branched sensor system

Publications (2)

Publication Number Publication Date
DE3880375D1 true DE3880375D1 (de) 1993-05-27
DE3880375T2 DE3880375T2 (de) 1993-07-29

Family

ID=22010665

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888304957T Expired - Fee Related DE3880375T2 (de) 1987-06-03 1988-05-31 Verzweigtes sensorsystem.

Country Status (10)

Country Link
US (1) US4843327A (de)
EP (1) EP0294159B1 (de)
JP (1) JP2622400B2 (de)
KR (1) KR890000900A (de)
AT (1) ATE88575T1 (de)
AU (1) AU616183B2 (de)
CA (1) CA1325252C (de)
DE (1) DE3880375T2 (de)
DK (1) DK301188A (de)
NO (1) NO882429L (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5264796A (en) * 1990-04-03 1993-11-23 Ford Motor Company Fault detection and isolation in automotive wiring harness including dedicated test line
US5066919A (en) * 1990-04-03 1991-11-19 Ford Motor Company Fault detection and isolation in automotive wiring harness by network analysis method
US6777947B2 (en) 2002-04-29 2004-08-17 Tyco Thermal Controls Llc. Sensor cable
US7081759B2 (en) * 2003-12-01 2006-07-25 Raymond & Lae Engineering, Inc. Fluid detection cable
US8063309B2 (en) 2008-06-06 2011-11-22 Raymond & Lae Engineering, Inc. Twisted leak detection cable
US8234910B2 (en) * 2009-05-12 2012-08-07 Raymond & Lae Engineering, Inc. Aqueous chemical leak detection cable
US8256269B2 (en) * 2009-05-12 2012-09-04 Raymond & Lae Engineering, Inc. Aqueous chemical leak detection cable
FR3035750B1 (fr) * 2015-04-30 2018-06-15 Schneider Electric Industries Sas Dispositif de protection d'un reseau electrique
JP6971948B2 (ja) * 2018-10-05 2021-11-24 三菱電機ビルテクノサービス株式会社 漏液検出装置
JP7050014B2 (ja) * 2019-01-15 2022-04-07 三菱電機ビルテクノサービス株式会社 漏液検出装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3234459A (en) * 1959-01-02 1966-02-08 Whitney Blake Co Method and apparatus for locating faults in electrical cable lines by comparing the impedance of the entire faulted line to the impedance of a section of the line
US3248646A (en) * 1962-07-19 1966-04-26 Whitney Blake Co Location of cable faults by comparing a section of the faulted cable with a part of the section
US3460123A (en) * 1965-07-14 1969-08-05 Jack V Bass Clothing alarm means
US3560850A (en) * 1968-06-26 1971-02-02 Elof A B Hojding Systems for detecting and locating beginning faults in energized electric networks
US4013924A (en) * 1970-03-19 1977-03-22 A/S E. Rasmussen Methods and means for detecting the presence of moisture adjacent insulated pipes
US3668472A (en) * 1971-05-17 1972-06-06 Gilbert Associates Ground detection circuit for a d.c. distribution network
US4442422A (en) * 1982-03-31 1984-04-10 Murata Manufacturing Co., Ltd. Humidity sensitive resistor
IL72246A (en) * 1983-06-30 1989-09-28 Raychem Corp Method and apparatus for detecting and obtaining information about changes in variables
AU572519B2 (en) * 1983-06-30 1988-05-12 Raychem Corporation Method for detecting and obtaining information about changes in variables
AU4104485A (en) * 1984-04-11 1985-10-17 Raychem Corporation Detecting and locating information about an event
EP0160440A1 (de) * 1984-04-11 1985-11-06 RAYCHEM CORPORATION (a Delaware corporation) Vorrichtung zur Feststellung und zum Erhalt von Information über Änderungen von Variablen
CA1283721C (en) * 1984-04-24 1991-04-30 Louis Michael Frank Device for use in an apparatus for detecting and locating information about an event
MX160663A (es) * 1984-06-07 1990-04-05 Raychem Corp Mejoras en aparato electrico y metodo para la deteccion de variacion de parametros tales como volumen,temperatura y presencia de fluidos por medio de impedancias

Also Published As

Publication number Publication date
JP2622400B2 (ja) 1997-06-18
JPS646839A (en) 1989-01-11
EP0294159B1 (de) 1993-04-21
EP0294159A1 (de) 1988-12-07
US4843327A (en) 1989-06-27
DK301188D0 (da) 1988-06-02
NO882429D0 (no) 1988-06-02
AU616183B2 (en) 1991-10-24
CA1325252C (en) 1993-12-14
KR890000900A (ko) 1989-03-17
ATE88575T1 (de) 1993-05-15
DK301188A (da) 1988-12-04
AU1731688A (en) 1988-12-08
DE3880375T2 (de) 1993-07-29
NO882429L (no) 1988-12-05

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee