GB1465515A - Detector - Google Patents

Detector

Info

Publication number
GB1465515A
GB1465515A GB3049574A GB3049574A GB1465515A GB 1465515 A GB1465515 A GB 1465515A GB 3049574 A GB3049574 A GB 3049574A GB 3049574 A GB3049574 A GB 3049574A GB 1465515 A GB1465515 A GB 1465515A
Authority
GB
United Kingdom
Prior art keywords
cable
discontinuity
ferromagnetic
magnetic material
pulse
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
GB3049574A
Other languages
English (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.)
SHELL INT RESEARCH
Shell Internationale Research Maatschappij BV
Original Assignee
SHELL INT RESEARCH
Shell Internationale Research Maatschappij BV
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 SHELL INT RESEARCH, Shell Internationale Research Maatschappij BV filed Critical SHELL INT RESEARCH
Priority to GB3049574A priority Critical patent/GB1465515A/en
Priority to SE7507836A priority patent/SE7507836L/
Priority to FR7521398A priority patent/FR2292962A1/fr
Priority to CA231,029A priority patent/CA1064140A/en
Priority to NO752442A priority patent/NO752442L/no
Priority to JP50083212A priority patent/JPS5149074A/ja
Priority to US05/594,161 priority patent/US4023412A/en
Priority to DE19752530444 priority patent/DE2530444A1/de
Priority to NL7508151A priority patent/NL7508151A/xx
Publication of GB1465515A publication Critical patent/GB1465515A/en
Priority to SE7806881A priority patent/SE7806881L/xx
Priority to NO800782A priority patent/NO800782L/no
Expired 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
    • 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
    • G01M3/186—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 for containers, e.g. radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/126—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for large storage containers for liquefied gas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/36—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils
    • G01K7/38—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils the variations of temperature influencing the magnetic permeability
    • 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
    • G01M3/002—Investigating fluid-tightness of structures by using thermal means
    • 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
    • G01R31/11—Locating faults in cables, transmission lines, or networks using pulse reflection methods
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1834—Construction of the insulation between the conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H01B7/0807—Twin conductor or cable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0439—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0631—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/038—Detecting leaked fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
    • G01K3/14—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of space
    • G01K2003/145—Hotspot localization
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K2007/166—Electrical time domain reflectometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2203/00—Application of thermometers in cryogenics

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Locating Faults (AREA)
GB3049574A 1974-07-10 1974-07-10 Detector Expired GB1465515A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
GB3049574A GB1465515A (en) 1974-07-10 1974-07-10 Detector
JP50083212A JPS5149074A (cg-RX-API-DMAC7.html) 1974-07-10 1975-07-08
FR7521398A FR2292962A1 (fr) 1974-07-10 1975-07-08 Procede et dispositif pour la detection d'une variation de temperature et leur application aux citernes et canalisations
CA231,029A CA1064140A (en) 1974-07-10 1975-07-08 Temperature sensing transmission line with ferromagnetic material
NO752442A NO752442L (cg-RX-API-DMAC7.html) 1974-07-10 1975-07-08
SE7507836A SE7507836L (sv) 1974-07-10 1975-07-08 Sett och apparat for pavisande av temperatururvariation over eller under ett forutbestemt verde.
US05/594,161 US4023412A (en) 1974-07-10 1975-07-08 Method and apparatus for detecting temperature variation utilizing the Curie point of a ferromagnetic material
DE19752530444 DE2530444A1 (de) 1974-07-10 1975-07-08 Verfahren und vorrichtungen zum nachweisen von temperaturabweichungen
NL7508151A NL7508151A (nl) 1974-07-10 1975-07-09 Detector.
SE7806881A SE7806881L (sv) 1974-07-10 1978-06-14 Kabel for anvendning vid pavisande av temperaturvariation over eller under ett forutbestemt verde jemte sett att framstella sadan kabel
NO800782A NO800782L (no) 1974-07-10 1980-03-18 Kabel egnet for paavisning av temperaturvariasjoner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3049574A GB1465515A (en) 1974-07-10 1974-07-10 Detector

Publications (1)

Publication Number Publication Date
GB1465515A true GB1465515A (en) 1977-02-23

Family

ID=10308575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3049574A Expired GB1465515A (en) 1974-07-10 1974-07-10 Detector

Country Status (9)

Country Link
US (1) US4023412A (cg-RX-API-DMAC7.html)
JP (1) JPS5149074A (cg-RX-API-DMAC7.html)
CA (1) CA1064140A (cg-RX-API-DMAC7.html)
DE (1) DE2530444A1 (cg-RX-API-DMAC7.html)
FR (1) FR2292962A1 (cg-RX-API-DMAC7.html)
GB (1) GB1465515A (cg-RX-API-DMAC7.html)
NL (1) NL7508151A (cg-RX-API-DMAC7.html)
NO (2) NO752442L (cg-RX-API-DMAC7.html)
SE (2) SE7507836L (cg-RX-API-DMAC7.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4349282A (en) 1977-02-08 1982-09-14 Spill-Fire Alarm Systems Ltd. Transducers
WO2010093258A1 (en) 2009-02-13 2010-08-19 Asle Johnsen System for measurement with pearls

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1171933A (en) * 1980-06-23 1984-07-31 Yasushi Wakahara Apparatus for detecting the local temperature variations of an object and the sites of the temperature variations
EP0044431B1 (en) * 1980-06-23 1986-10-22 Kabushiki Kaisha Toshiba Apparatus for detecting the local temperature variations of an object and the sites of the temperature variations
DE3125388A1 (de) * 1981-06-27 1983-01-13 Battelle-Institut E.V., 6000 Frankfurt "verfahren und vorrichtung zur kontinuierlichen ueberwachung von fluide medien enthaltenden anlagen"
DE3232211C2 (de) * 1982-08-30 1991-10-24 Bernd 2420 Eutin Brandes Mediumtransportleitung
US5382909A (en) * 1983-06-30 1995-01-17 Raychem Corporation Method for detecting and obtaining information about changes in variables
JPS6048134U (ja) * 1983-09-09 1985-04-04 株式会社　潤工社 温度検知装置
DE3687819T2 (de) * 1985-06-12 1993-06-09 Raychem Corp Kohlenwasserstoffsensor.
US4926165A (en) * 1985-10-15 1990-05-15 Raychem Corporation Devices for detecting and obtaining information about an event
US5179342A (en) * 1991-02-11 1993-01-12 Westinghouse Electric Corp. Superconductor quench measuring device which evaluates reflected pulses
US5185594A (en) * 1991-05-20 1993-02-09 Furon Company Temperature sensing cable device and method of making same
US5389875A (en) * 1993-03-19 1995-02-14 Grumman Aerospace Corporation Apparatus for non-destructive testing of dielectric/magnetic materials
US5648724A (en) * 1996-02-08 1997-07-15 U.S. Army Corps Of Engineers As Represented By The Secretary Of The Army Metallic time-domain reflectometry roof moisture sensor
US20050260331A1 (en) * 2002-01-22 2005-11-24 Xingwu Wang Process for coating a substrate
WO2009046751A1 (de) * 2007-10-02 2009-04-16 Abb Research Ltd Verfahren zur bestimmung der temperaturverteilung entlang eines leiters
US8066431B2 (en) * 2009-03-20 2011-11-29 Lockheed Martin Corporation Cable temperature monitor
US10101218B2 (en) * 2014-06-18 2018-10-16 Kidde Technologies, Inc. Thermal sensor
FR3029295B1 (fr) 2014-12-01 2016-12-30 Win Ms Procede et dispositif de detection de points chauds dans une installation, notamment pour la detection de fuites dans des conduits d'air.
DE102019200862B4 (de) * 2019-01-24 2024-01-18 Audi Ag Kabelanordnung zum Transport von Drehstrom
CN109612600B (zh) * 2019-01-31 2024-10-22 珠海艾文科技有限公司 基于居里温度跳变的光纤传感探头以及光纤传感系统
FR3119653B1 (fr) * 2021-02-06 2024-04-19 Schulz Jean Michel Dispositif flexible de supportage des organes internes d’un réservoir ou d’une ligne cryogénique embarqué.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615973A (en) * 1950-04-07 1952-10-28 Samuel Scrivener Jr Temperature responsive detector system
US2926343A (en) * 1956-10-11 1960-02-23 Mc Graw Edison Co Curie point fire detector cable
NL258963A (cg-RX-API-DMAC7.html) * 1959-12-12
FR1300762A (fr) * 1961-03-31 1962-08-10 Du Pont Dispositif de transformation de diverses formes d'énergie
FR82223E (fr) * 1961-06-22 1964-01-10 Ibm Système de correction d'erreurs
DE1227164B (de) * 1965-06-24 1966-10-20 Euratom Kernreaktorueberwachungseinrichtung zur UEberwachung von thermischen Isolierschichten
US3510762A (en) * 1967-04-14 1970-05-05 John Robert Alexander Leslie Electrical cable temperature monitoring and hot-spot locating system and method utilizing a transmission line having a liquid dielectric
US3588689A (en) * 1969-06-16 1971-06-28 Harry F Crawford Variable impedance system for electrical cable fault locating and temperature monitoring

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4349282A (en) 1977-02-08 1982-09-14 Spill-Fire Alarm Systems Ltd. Transducers
WO2010093258A1 (en) 2009-02-13 2010-08-19 Asle Johnsen System for measurement with pearls
EP2396627A4 (en) * 2009-02-13 2014-01-22 Asle Johnsen MEASURING SYSTEM WITH PEARLS
US9116053B2 (en) 2009-02-13 2015-08-25 Asle Johnsen System for measurement with pearls
EA024587B1 (ru) * 2009-02-13 2016-10-31 Асле Йонсен Система и способ для измерения температуры

Also Published As

Publication number Publication date
NL7508151A (nl) 1976-01-13
FR2292962A1 (fr) 1976-06-25
SE7507836L (sv) 1976-01-12
FR2292962B1 (cg-RX-API-DMAC7.html) 1978-12-29
CA1064140A (en) 1979-10-09
US4023412A (en) 1977-05-17
SE7806881L (sv) 1978-06-14
NO752442L (cg-RX-API-DMAC7.html) 1976-01-13
JPS5149074A (cg-RX-API-DMAC7.html) 1976-04-27
NO800782L (no) 1976-01-13
DE2530444A1 (de) 1976-01-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee