JPS5455487A - Optical thermometer - Google Patents
Optical thermometerInfo
- Publication number
- JPS5455487A JPS5455487A JP12275877A JP12275877A JPS5455487A JP S5455487 A JPS5455487 A JP S5455487A JP 12275877 A JP12275877 A JP 12275877A JP 12275877 A JP12275877 A JP 12275877A JP S5455487 A JPS5455487 A JP S5455487A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- detecting portion
- variation
- refractive index
- varied
- 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
Links
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
PURPOSE: To improve the temperature metering accuracy by converting the temperature variation into an optical variation with the use of a thermometer, in which reflective and transparent layers having different temperature characteristics of refractive index are combined.
CONSTITUTION: There are juxtaposed in a temperature detecting portion D an optically transparent layer I, which made of a solid substance having a low temperature characteristics of a refractive index n1 such as a crystal LiTaO3, and an optically reflective layer II which is made of a substance having a high temperature characteristics of refractive index n2 such as a crystal of epitaxially grown LiNbO3. Since the refractive indexes of the layers I and II are different, the detecting portion D has its ratio in refractive indexes n1/n2 varied in accordance with the temperature. In accordance with that variation, the intensity of the transmitted light coming from an optical fiber 1 and emanating from an optical fiber 1' through the detecting portion D having its transmissvity varied is caried so that the temperature measurement of high accuracy free from noises can be accomplished through the detecting portion requiring no electric signal
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12275877A JPS5455487A (en) | 1977-10-12 | 1977-10-12 | Optical thermometer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12275877A JPS5455487A (en) | 1977-10-12 | 1977-10-12 | Optical thermometer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5455487A true JPS5455487A (en) | 1979-05-02 |
JPS6349171B2 JPS6349171B2 (en) | 1988-10-03 |
Family
ID=14843876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12275877A Granted JPS5455487A (en) | 1977-10-12 | 1977-10-12 | Optical thermometer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5455487A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982003914A1 (en) * | 1981-05-07 | 1982-11-11 | Taniuchi Tetsuo | A temperature detector |
JPS581627A (en) * | 1981-06-23 | 1983-01-07 | 東洋製罐株式会社 | Method of sterilizing sealed package |
-
1977
- 1977-10-12 JP JP12275877A patent/JPS5455487A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982003914A1 (en) * | 1981-05-07 | 1982-11-11 | Taniuchi Tetsuo | A temperature detector |
JPS581627A (en) * | 1981-06-23 | 1983-01-07 | 東洋製罐株式会社 | Method of sterilizing sealed package |
JPS6339225B2 (en) * | 1981-06-23 | 1988-08-04 | Toyo Seikan Kaisha Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS6349171B2 (en) | 1988-10-03 |
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