JPS57161623A - Optical temperature sensor - Google Patents
Optical temperature sensorInfo
- 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
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.
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)
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 |
-
1981
- 1981-03-31 JP JP56049102A patent/JPS57161623A/en active Pending
Cited By (8)
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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