JPS5443780A - Photometric apparatus using optical fiber - Google Patents
Photometric apparatus using optical fiberInfo
- Publication number
- JPS5443780A JPS5443780A JP10990977A JP10990977A JPS5443780A JP S5443780 A JPS5443780 A JP S5443780A JP 10990977 A JP10990977 A JP 10990977A JP 10990977 A JP10990977 A JP 10990977A JP S5443780 A JPS5443780 A JP S5443780A
- Authority
- JP
- Japan
- Prior art keywords
- light
- sensor
- optical fiber
- wavelength
- optical
- 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
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
PURPOSE: To remotely measure the parameters such as temperature, pressure or dislocation by providing means for feeding back through an optical fiber the modulated light, which is generated by optically modulating means, as well as a reference light.
CONSTITUTION: A light source 1 produces a light having a wavelength of λ1, and a light source 2 produces a light having a wavelength λ2 outside of the wavelength to be left unmodulated with the use of an optical sensor 7 so that the lights coming from those two systems are mixed in an optical composer 3 and fed to the sensor 7 through an optical fiber 6. The sensor 7 modulates the transmission wave range of the light λ1 in accordance with the temperature to be measured. On the other hand, the light λ2 passes through the sensor section without any modulation as the reference light. Both of those lights λ1 and λ2 are fed back through the fiber 6. At the receiving side, the transmission loss in the transmission system can be detected by the light λ2 so that the signal light λ1 using the detection as the reference is compensated and measured.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10990977A JPS5443780A (en) | 1977-09-14 | 1977-09-14 | Photometric apparatus using optical fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10990977A JPS5443780A (en) | 1977-09-14 | 1977-09-14 | Photometric apparatus using optical fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5443780A true JPS5443780A (en) | 1979-04-06 |
Family
ID=14522215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10990977A Pending JPS5443780A (en) | 1977-09-14 | 1977-09-14 | Photometric apparatus using optical fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5443780A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5724863A (en) * | 1980-07-22 | 1982-02-09 | Iwatsu Electric Co Ltd | Modulation measuring method of and apparatus for intensity of light |
JPS6229464A (en) * | 1985-07-31 | 1987-02-07 | アツプリカ葛西株式会社 | Baby carriage |
-
1977
- 1977-09-14 JP JP10990977A patent/JPS5443780A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5724863A (en) * | 1980-07-22 | 1982-02-09 | Iwatsu Electric Co Ltd | Modulation measuring method of and apparatus for intensity of light |
JPS6229464A (en) * | 1985-07-31 | 1987-02-07 | アツプリカ葛西株式会社 | Baby carriage |
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