JPS577532A - Temperature measuring apparatus - Google Patents

Temperature measuring apparatus

Info

Publication number
JPS577532A
JPS577532A JP8252080A JP8252080A JPS577532A JP S577532 A JPS577532 A JP S577532A JP 8252080 A JP8252080 A JP 8252080A JP 8252080 A JP8252080 A JP 8252080A JP S577532 A JPS577532 A JP S577532A
Authority
JP
Japan
Prior art keywords
temperature
high voltage
polarizing
section
optical fiber
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.)
Pending
Application number
JP8252080A
Other languages
Japanese (ja)
Inventor
Tomio Fukushima
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.)
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Electric Manufacturing Co 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 Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Electric Manufacturing Co Ltd
Priority to JP8252080A priority Critical patent/JPS577532A/en
Publication of JPS577532A publication Critical patent/JPS577532A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

PURPOSE:To enable measurement of temperature at points accompanying large noise with a high voltage of high voltage equipment or the like with no power supply by optically meauring a magnetic field generated according to the temperature by a thermal-magnetic conversion section. CONSTITUTION:Light from a source 1 propagates through an optical fiber 9 and is detected by a detection section 6 after propagating through an optical fiber 10 via a d.c. polarizing element 2, a Faraday element 3 and a light detecting element 5 with the polarizing face thereof parallel to the polarizig element 2. On the other hand, a thermal-magnetic conversion section made up of a magnet 7 and a temperature sensitive ferrite 8 provided near a section to be detected generates a magnetic field changing according to the temperature thereof. Therefore, the polarizing face of the element 3 varies according to the temperature of an object being measured whereby the temperature can be optically measured through the detection section 6. This enables the complete and accurate measurement of temperature accompanying large noise with a voltage of high voltage equipment or the like with no power supply.
JP8252080A 1980-06-18 1980-06-18 Temperature measuring apparatus Pending JPS577532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8252080A JPS577532A (en) 1980-06-18 1980-06-18 Temperature measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8252080A JPS577532A (en) 1980-06-18 1980-06-18 Temperature measuring apparatus

Publications (1)

Publication Number Publication Date
JPS577532A true JPS577532A (en) 1982-01-14

Family

ID=13776803

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8252080A Pending JPS577532A (en) 1980-06-18 1980-06-18 Temperature measuring apparatus

Country Status (1)

Country Link
JP (1) JPS577532A (en)

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