JPS5686322A - Optical temperature detector - Google Patents

Optical temperature detector

Info

Publication number
JPS5686322A
JPS5686322A JP16433079A JP16433079A JPS5686322A JP S5686322 A JPS5686322 A JP S5686322A JP 16433079 A JP16433079 A JP 16433079A JP 16433079 A JP16433079 A JP 16433079A JP S5686322 A JPS5686322 A JP S5686322A
Authority
JP
Japan
Prior art keywords
temperature
sensor part
ferrite
light
assurance
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
JP16433079A
Other languages
Japanese (ja)
Inventor
Yasukuni Yamane
Nobutoshi Gako
Chuji Suzuki
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP16433079A priority Critical patent/JPS5686322A/en
Publication of JPS5686322A publication Critical patent/JPS5686322A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE:To increase the assurance, noise-resistant property and safety for detection of the temperature, by using the light signal which is made to pass through the optical fiber for both transmission and send-back purposes and at the same time utilizing the magnetic properties of the temperature-sensitive ferrite. CONSTITUTION:The temperature-sensitive ferrite 3 is lower than the Curie point Tc deg.C when the temperature T of the sensor part D is lower than the set temperature Tc. Thus the ferrite 3 has a magnetic property to attract the lever 5, as a result, the follower piece 4 is under the lowered light transmission state 4a. Accordingly, the output light of the sensor part, i.e., the output light of the send-back device E is intensive, and the face that the temperature at the sensor part is not higher than the set level is decided automatically via the deciding device F. On the other hand, the ferrite 3 loses the magnetic property when the temperature T is higher than the temperature Tc. Thus the piece 4 is put under the light shielded state 4b, and the fact that the temperature of the sensor part D exceeds the set level is decided by the device F. In such way, the assurance, noise-resistant property and safety can be increased for detection of the temperature.
JP16433079A 1979-12-17 1979-12-17 Optical temperature detector Pending JPS5686322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16433079A JPS5686322A (en) 1979-12-17 1979-12-17 Optical temperature detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16433079A JPS5686322A (en) 1979-12-17 1979-12-17 Optical temperature detector

Publications (1)

Publication Number Publication Date
JPS5686322A true JPS5686322A (en) 1981-07-14

Family

ID=15791112

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16433079A Pending JPS5686322A (en) 1979-12-17 1979-12-17 Optical temperature detector

Country Status (1)

Country Link
JP (1) JPS5686322A (en)

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