JPS6468663A - Optical measuring instrument - Google Patents
Optical measuring instrumentInfo
- Publication number
- JPS6468663A JPS6468663A JP62225036A JP22503687A JPS6468663A JP S6468663 A JPS6468663 A JP S6468663A JP 62225036 A JP62225036 A JP 62225036A JP 22503687 A JP22503687 A JP 22503687A JP S6468663 A JPS6468663 A JP S6468663A
- Authority
- JP
- Japan
- Prior art keywords
- wavelength
- light
- component
- vibration
- lambdab
- 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 Magnetic Variables (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
PURPOSE:To take an accurate measurement in a place where there is much vibration by measuring a physical quantity such as the voltage of light of one wavelength of two-wavelength light and removing a measurement error due to the vibration of an optical fiber with the other wavelength light beam. CONSTITUTION:Light with wavelength lambdaa contains an AC component by the electrooptic element of a detection part 103 and an AC component by microbend effect due to the vibrations of 1st and 2nd optical fibers 102a and 102b. Light with wavelength lambdab contains only the AC component due to the vibration of the 1st and 2nd optical fibers 102a and 102b. The AC component by the microbend effect is modulated with a voltage applied to the electrooptic element of the detection part 103 by finding the difference between the light with the wavelength lambdaa and light with the wavelength lambdab because they have the same variation rate. An arithmetic processing part 105 computes and outputs a measurement result. Consequently, the accurate measuring operation is carried out even in a place where there is much vibration.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62225036A JPS6468663A (en) | 1987-09-08 | 1987-09-08 | Optical measuring instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62225036A JPS6468663A (en) | 1987-09-08 | 1987-09-08 | Optical measuring instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6468663A true JPS6468663A (en) | 1989-03-14 |
Family
ID=16823048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62225036A Pending JPS6468663A (en) | 1987-09-08 | 1987-09-08 | Optical measuring instrument |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6468663A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2818300B2 (en) * | 1993-04-14 | 1998-10-30 | シーメンス アクチエンゲゼルシヤフト | Optical AC measurement method with temperature compensation and apparatus for implementing the method |
-
1987
- 1987-09-08 JP JP62225036A patent/JPS6468663A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2818300B2 (en) * | 1993-04-14 | 1998-10-30 | シーメンス アクチエンゲゼルシヤフト | Optical AC measurement method with temperature compensation and apparatus for implementing the method |
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