SE7511451L - METHODS AND DEVICES FOR DETECTING TEMPERATURE VARIATIONS OVER OR UNDER A PRESED VALUE - Google Patents

METHODS AND DEVICES FOR DETECTING TEMPERATURE VARIATIONS OVER OR UNDER A PRESED VALUE

Info

Publication number
SE7511451L
SE7511451L SE7511451A SE7511451A SE7511451L SE 7511451 L SE7511451 L SE 7511451L SE 7511451 A SE7511451 A SE 7511451A SE 7511451 A SE7511451 A SE 7511451A SE 7511451 L SE7511451 L SE 7511451L
Authority
SE
Sweden
Prior art keywords
presed
methods
devices
value
under
Prior art date
Application number
SE7511451A
Other languages
Swedish (sv)
Inventor
J M Jones
Original Assignee
Shell Int Research
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 filed Critical Shell Int Research
Publication of SE7511451L publication Critical patent/SE7511451L/en

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)
SE7511451A 1974-10-15 1975-10-13 METHODS AND DEVICES FOR DETECTING TEMPERATURE VARIATIONS OVER OR UNDER A PRESED VALUE SE7511451L (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
SE7511451L true SE7511451L (en) 1976-04-20

Family

ID=10434083

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7511451A SE7511451L (en) 1974-10-15 1975-10-13 METHODS AND DEVICES FOR DETECTING TEMPERATURE VARIATIONS OVER OR UNDER A PRESED VALUE

Country Status (8)

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

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 (en) * 1992-03-10 1993-11-18 Telefunken Microelectron Contactless temp. monitoring system for ferromagnetic vehicle brake disc - measures temp. dependent permeability in air gap of transformer, with min. permeability larger than one below Curie temp. and threshold permeability between min. and one, and compares actual and threshold values.

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
FR2288303B1 (en) 1979-05-11
GB1526726A (en) 1978-09-27
NL7511992A (en) 1976-04-21
NO753453L (en) 1976-04-21
DE2545812A1 (en) 1976-04-29
FR2288303A1 (en) 1976-05-14
CA1064141A (en) 1979-10-09
JPS5164980A (en) 1976-06-04

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