CA1064141A - Curie point type magnetic temperature sensing detector - Google Patents

Curie point type magnetic temperature sensing detector

Info

Publication number
CA1064141A
CA1064141A CA234,626A CA234626A CA1064141A CA 1064141 A CA1064141 A CA 1064141A CA 234626 A CA234626 A CA 234626A CA 1064141 A CA1064141 A CA 1064141A
Authority
CA
Canada
Prior art keywords
conductors
group
electrical current
ferromagnetic material
electrical
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
CA234,626A
Other languages
English (en)
French (fr)
Inventor
John M. Jones
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 Canada Ltd
Original Assignee
Shell Canada Ltd
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 Canada Ltd filed Critical Shell Canada Ltd
Application granted granted Critical
Publication of CA1064141A publication Critical patent/CA1064141A/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)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Hard Magnetic Materials (AREA)
CA234,626A 1974-10-15 1975-08-29 Curie point type magnetic temperature sensing detector Expired CA1064141A (en)

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
CA1064141A true CA1064141A (en) 1979-10-09

Family

ID=10434083

Family Applications (1)

Application Number Title Priority Date Filing Date
CA234,626A Expired CA1064141A (en) 1974-10-15 1975-08-29 Curie point type magnetic temperature sensing detector

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
GB8918774D0 (en) * 1989-08-17 1989-09-27 Nat Res Dev Temperature llistory indicator
US5201583A (en) * 1989-08-17 1993-04-13 British Technology Group Limited Temperature history 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
JPS5164980A (nl) 1976-06-04
FR2288303B1 (nl) 1979-05-11
NO753453L (nl) 1976-04-21
FR2288303A1 (fr) 1976-05-14
SE7511451L (sv) 1976-04-20
DE2545812A1 (de) 1976-04-29
NL7511992A (nl) 1976-04-21
GB1526726A (en) 1978-09-27

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