FR2288303A1 - Procede et appareil pour la detection de variations de temperature et leur application au controle des isolations - Google Patents

Procede et appareil pour la detection de variations de temperature et leur application au controle des isolations

Info

Publication number
FR2288303A1
FR2288303A1 FR7531254A FR7531254A FR2288303A1 FR 2288303 A1 FR2288303 A1 FR 2288303A1 FR 7531254 A FR7531254 A FR 7531254A FR 7531254 A FR7531254 A FR 7531254A FR 2288303 A1 FR2288303 A1 FR 2288303A1
Authority
FR
France
Prior art keywords
insulations
detection
application
control
temperature variations
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.)
Granted
Application number
FR7531254A
Other languages
English (en)
French (fr)
Other versions
FR2288303B1 (OSRAM
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
Publication of FR2288303A1 publication Critical patent/FR2288303A1/fr
Application granted granted Critical
Publication of FR2288303B1 publication Critical patent/FR2288303B1/fr
Granted 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)
FR7531254A 1974-10-15 1975-10-13 Procede et appareil pour la detection de variations de temperature et leur application au controle des isolations Granted FR2288303A1 (fr)

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 (2)

Publication Number Publication Date
FR2288303A1 true FR2288303A1 (fr) 1976-05-14
FR2288303B1 FR2288303B1 (OSRAM) 1979-05-11

Family

ID=10434083

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7531254A Granted 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

Country Status (8)

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

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

Citations (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

Patent Citations (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
JPS5164980A (OSRAM) 1976-06-04
FR2288303B1 (OSRAM) 1979-05-11
DE2545812A1 (de) 1976-04-29
GB1526726A (en) 1978-09-27
SE7511451L (sv) 1976-04-20
CA1064141A (en) 1979-10-09
NO753453L (OSRAM) 1976-04-21

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Legal Events

Date Code Title Description
ST Notification of lapse