GB1526726A - Method and apparatus for detecting temperature variation above or below a predetermined value - Google Patents

Method and apparatus for detecting temperature variation above or below a predetermined value

Info

Publication number
GB1526726A
GB1526726A GB44614/74A GB4461474A GB1526726A GB 1526726 A GB1526726 A GB 1526726A GB 44614/74 A GB44614/74 A GB 44614/74A GB 4461474 A GB4461474 A GB 4461474A GB 1526726 A GB1526726 A GB 1526726A
Authority
GB
United Kingdom
Prior art keywords
conductor
current
predetermined value
conductors
temperature variation
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
GB44614/74A
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 Internationale Research Maatschappij BV
Original Assignee
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 Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB44614/74A priority Critical patent/GB1526726A/en
Priority to CA234,626A priority patent/CA1064141A/en
Priority to FR7531254A priority patent/FR2288303A1/fr
Priority to NO753453A priority patent/NO753453L/no
Priority to NL7511992A priority patent/NL7511992A/nl
Priority to DE19752545812 priority patent/DE2545812A1/de
Priority to SE7511451A priority patent/SE7511451L/xx
Priority to JP50122576A priority patent/JPS5164980A/ja
Publication of GB1526726A publication Critical patent/GB1526726A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/141—Arrangements for the insulation of pipes or pipe systems in which the temperature of the medium is below that of the ambient temperature
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Hard Magnetic Materials (AREA)
GB44614/74A 1974-10-15 1974-10-15 Method and apparatus for detecting temperature variation above or below a predetermined value Expired GB1526726A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB44614/74A GB1526726A (en) 1974-10-15 1974-10-15 Method and apparatus for detecting temperature variation above or below a predetermined value
CA234,626A CA1064141A (en) 1974-10-15 1975-08-29 Curie point type magnetic temperature sensing detector
FR7531254A FR2288303A1 (fr) 1974-10-15 1975-10-13 Procede et appareil pour la detection de variations de temperature et leur application au controle des isolations
NO753453A NO753453L (nl) 1974-10-15 1975-10-13
NL7511992A NL7511992A (nl) 1974-10-15 1975-10-13 Detector.
DE19752545812 DE2545812A1 (de) 1974-10-15 1975-10-13 Verfahren und vorrichtung zum nachweisen von temperaturaenderungen
SE7511451A SE7511451L (sv) 1974-10-15 1975-10-13 Sett och apparat for detektering av temperaturvariationer over eller under ett forutbestemt verde
JP50122576A JPS5164980A (nl) 1974-10-15 1975-10-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB44614/74A GB1526726A (en) 1974-10-15 1974-10-15 Method and apparatus for detecting temperature variation above or below a predetermined value

Publications (1)

Publication Number Publication Date
GB1526726A true GB1526726A (en) 1978-09-27

Family

ID=10434083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44614/74A Expired GB1526726A (en) 1974-10-15 1974-10-15 Method and apparatus for detecting temperature variation above or below a predetermined value

Country Status (8)

Country Link
JP (1) JPS5164980A (nl)
CA (1) CA1064141A (nl)
DE (1) DE2545812A1 (nl)
FR (1) FR2288303A1 (nl)
GB (1) GB1526726A (nl)
NL (1) NL7511992A (nl)
NO (1) NO753453L (nl)
SE (1) SE7511451L (nl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5201583A (en) * 1989-08-17 1993-04-13 British Technology Group Limited Temperature history indicator
GB8918774D0 (en) * 1989-08-17 1989-09-27 Nat Res Dev Temperature llistory indicator
DE4207493A1 (de) * 1992-03-10 1993-11-18 Telefunken Microelectron Vorrichtung zur berührungslosen Überwachung der Temperatur eines Meßkörpers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060418A (en) * 1959-10-09 1962-10-23 Ibm Core array temperature responsive apparatus
US3727053A (en) * 1971-05-03 1973-04-10 R Walser Method and apparatus for detecting radiation by means of the pyromagnetic effect

Also Published As

Publication number Publication date
NL7511992A (nl) 1976-04-21
FR2288303B1 (nl) 1979-05-11
SE7511451L (sv) 1976-04-20
CA1064141A (en) 1979-10-09
FR2288303A1 (fr) 1976-05-14
JPS5164980A (nl) 1976-06-04
NO753453L (nl) 1976-04-21
DE2545812A1 (de) 1976-04-29

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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