JPS57161623A - Optical temperature sensor - Google Patents

Optical temperature sensor

Info

Publication number
JPS57161623A
JPS57161623A JP56049102A JP4910281A JPS57161623A JP S57161623 A JPS57161623 A JP S57161623A JP 56049102 A JP56049102 A JP 56049102A JP 4910281 A JP4910281 A JP 4910281A JP S57161623 A JPS57161623 A JP S57161623A
Authority
JP
Japan
Prior art keywords
light
detector
visual
fluorescent body
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
JP56049102A
Other languages
Japanese (ja)
Inventor
Yoji Fukuda
Koji Nitta
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56049102A priority Critical patent/JPS57161623A/en
Publication of JPS57161623A publication Critical patent/JPS57161623A/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
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
    • G01K11/3206—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering
    • G01K11/3213—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering using changes in luminescence, e.g. at the distal end of the fibres

Landscapes

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

Abstract

PURPOSE:To provide a temperature sensor whereto a high-sensitive optical fiber being excellent in reproducibility is employed, by a method wherein, using a temperature detecting part employing an infrared visual converting fluorescent body, a luminous diode and a semiconductor laser are used as an exciting light source. CONSTITUTION:A fluorescent body 4 converts infrared light into visual fluorescent light, the infrared light being formed such that either of Tm and H0 and Yb and added to a parent substance crystal, such as a fluoride containing an alkali earth metal and a rare-earth element. The fluorescent body 1 is irradiated with ifrared rays from a semiconductor laser 1 via an optical fiber 2 and a rod lens 3 to radiate strong visual light corrsponding to the temperature of the fluorescent body 4. The light, collected again by the rod 3, is transferred to a branching filter 6 through the optical fiber 5, light from the branching filter 6 is separately detected by a visual light detector 7 and an infrared light detector 8, and temperature is found from the output of the detector 7 with a reference to the output of the detector 8.
JP56049102A 1981-03-31 1981-03-31 Optical temperature sensor Pending JPS57161623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56049102A JPS57161623A (en) 1981-03-31 1981-03-31 Optical temperature sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56049102A JPS57161623A (en) 1981-03-31 1981-03-31 Optical temperature sensor

Publications (1)

Publication Number Publication Date
JPS57161623A true JPS57161623A (en) 1982-10-05

Family

ID=12821723

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56049102A Pending JPS57161623A (en) 1981-03-31 1981-03-31 Optical temperature sensor

Country Status (1)

Country Link
JP (1) JPS57161623A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57166529A (en) * 1981-04-07 1982-10-14 Omron Tateisi Electronics Co Method and device for measuring temperature
JPS5830628A (en) * 1981-08-15 1983-02-23 Machida Oputo Giken:Kk Method and device for measuring temperature
JPS61148333A (en) * 1984-12-21 1986-07-07 Nippon Telegr & Teleph Corp <Ntt> Temperature measuring apparatus
US4988212A (en) * 1985-10-25 1991-01-29 Luxtron Corporation Fiberoptic sensing of temperature and/or other physical parameters
US5036194A (en) * 1990-02-27 1991-07-30 Allied-Signal Inc. Lens system for optic temperature sensor
US5803606A (en) * 1993-12-16 1998-09-08 Phototherm Dr. Petry Gmbh Surface photothermic testing device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57166529A (en) * 1981-04-07 1982-10-14 Omron Tateisi Electronics Co Method and device for measuring temperature
JPS634653B2 (en) * 1981-04-07 1988-01-29 Omron Tateisi Electronics Co
JPS5830628A (en) * 1981-08-15 1983-02-23 Machida Oputo Giken:Kk Method and device for measuring temperature
JPS61148333A (en) * 1984-12-21 1986-07-07 Nippon Telegr & Teleph Corp <Ntt> Temperature measuring apparatus
US4988212A (en) * 1985-10-25 1991-01-29 Luxtron Corporation Fiberoptic sensing of temperature and/or other physical parameters
US5036194A (en) * 1990-02-27 1991-07-30 Allied-Signal Inc. Lens system for optic temperature sensor
WO1991013326A1 (en) * 1990-02-27 1991-09-05 Allied-Signal Inc. Optic temperature sensor
US5803606A (en) * 1993-12-16 1998-09-08 Phototherm Dr. Petry Gmbh Surface photothermic testing device

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