JPS57197432A - Light applying temperature sensor - Google Patents
Light applying temperature sensorInfo
- Publication number
- JPS57197432A JPS57197432A JP8195781A JP8195781A JPS57197432A JP S57197432 A JPS57197432 A JP S57197432A JP 8195781 A JP8195781 A JP 8195781A JP 8195781 A JP8195781 A JP 8195781A JP S57197432 A JPS57197432 A JP S57197432A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- light
- base
- reflected
- thermal
- 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
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
- G01K5/50—Measuring temperature based on the expansion or contraction of a material the material being a solid arranged for free expansion or contraction
- G01K5/52—Measuring temperature based on the expansion or contraction of a material the material being a solid arranged for free expansion or contraction with electrical conversion means for final indication
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
PURPOSE:To achieve temperature measurement even under the high potential and strong inductive interference environment, by locating a thermal inflatable body on a base for temperature measurement and measuring the amount of reflection through the irradiation to said body in use with an optical system using an optical fiber. CONSTITUTION:A temperature sensor 1 is fitted to an electric equipment E to be measured for temperatue and is surrounded with a base 2 and a case 3. A light from a light source is introduced to an optical fiber tap 8 via an optical fiber 6A and to a detector 10A through a convergent rod lens and an original optical output I0 is detected with a detection and operating device 11A. On the other hand, the light reflected on a half mirror at the end of the lens 9 is introduced to the case 3 via an optical fiber B and given to a thermal inflatable body 4B and projected to a thermal expansion body 4A with different thermal expansion factor opposing to the 4B with a slight clearance. The reflected light is returned to the fiber 6B and to a detector 10B, and the reflected output intensity I can be calculated with a detection and operation device 11B. From the ratio of the intensity I to the I0, the temperature of the base 2 can be calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8195781A JPS57197432A (en) | 1981-05-29 | 1981-05-29 | Light applying temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8195781A JPS57197432A (en) | 1981-05-29 | 1981-05-29 | Light applying temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57197432A true JPS57197432A (en) | 1982-12-03 |
Family
ID=13760976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8195781A Pending JPS57197432A (en) | 1981-05-29 | 1981-05-29 | Light applying temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57197432A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014201769A (en) * | 2013-04-02 | 2014-10-27 | 株式会社神戸製鋼所 | Treatment apparatus and temperature measuring method of workpiece |
| CN115290204A (en) * | 2022-09-29 | 2022-11-04 | 国网山东省电力公司高密市供电公司 | Thermal expansion temperature indicating device and method |
-
1981
- 1981-05-29 JP JP8195781A patent/JPS57197432A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014201769A (en) * | 2013-04-02 | 2014-10-27 | 株式会社神戸製鋼所 | Treatment apparatus and temperature measuring method of workpiece |
| US9897489B2 (en) | 2013-04-02 | 2018-02-20 | Kobe Steel, Ltd. | Processing apparatus and method of measuring temperature of workpiece in processing apparatus |
| CN115290204A (en) * | 2022-09-29 | 2022-11-04 | 国网山东省电力公司高密市供电公司 | Thermal expansion temperature indicating device and method |
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