JPS6449973A - Optical current transformer - Google Patents
Optical current transformerInfo
- Publication number
- JPS6449973A JPS6449973A JP62205221A JP20522187A JPS6449973A JP S6449973 A JPS6449973 A JP S6449973A JP 62205221 A JP62205221 A JP 62205221A JP 20522187 A JP20522187 A JP 20522187A JP S6449973 A JPS6449973 A JP S6449973A
- Authority
- JP
- Japan
- Prior art keywords
- planes
- storage case
- effect material
- faraday effect
- gap
- 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
- 230000003287 optical effect Effects 0.000 title abstract 2
- 230000000694 effects Effects 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 4
- 239000004020 conductor Substances 0.000 abstract 1
- 229920002379 silicone rubber Polymers 0.000 abstract 1
- 239000004945 silicone rubber Substances 0.000 abstract 1
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
PURPOSE:To prevent mechanical stress from being applied to a Faraday effect material and to hold an optical axis invariably constant by arranging elastic bodies on only three planes of the internal surface of a storage case and pressing the Faraday effect material against other three planes. CONSTITUTION:Two planes of the Faraday effect material 1 including an incidence surface 2 and a projecting surface 3 for light are brought into contact with the internal surface of the storage case 4. A gap is formed between other two planes parallel to said two planes and the internal surface of the storage case 4 and the gap is filled with elastic bodies 14a and 14b formed of silicone rubber, etc., and plates 15a and 15b made of rigid bodies. A hole part is provided at part of the storage case on the side where the gap is formed and elastic bodies 16a, 16b, 16c, 16d, 16e, and 16f made of metallic springs, etc., are arranged in the hole part and fixed with pressure plates 17a and 17b. Then a conductor 18 where a current to be measured flows is provided at the center part of the Faraday effect material 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62205221A JPS6449973A (en) | 1987-08-20 | 1987-08-20 | Optical current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62205221A JPS6449973A (en) | 1987-08-20 | 1987-08-20 | Optical current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6449973A true JPS6449973A (en) | 1989-02-27 |
Family
ID=16503417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62205221A Pending JPS6449973A (en) | 1987-08-20 | 1987-08-20 | Optical current transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6449973A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0613017A1 (en) * | 1993-02-22 | 1994-08-31 | GEC ALSTHOM T & D BALTEAU | Device for optically measuring current intensity |
| EP0650066A1 (en) * | 1993-10-21 | 1995-04-26 | Fuji Electric Co. Ltd. | Optical current transducer |
| US5973492A (en) * | 1997-04-16 | 1999-10-26 | Ma; Xianyun | High accuracy optical current transducer thta eliminates birefringence |
-
1987
- 1987-08-20 JP JP62205221A patent/JPS6449973A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0613017A1 (en) * | 1993-02-22 | 1994-08-31 | GEC ALSTHOM T & D BALTEAU | Device for optically measuring current intensity |
| EP0650066A1 (en) * | 1993-10-21 | 1995-04-26 | Fuji Electric Co. Ltd. | Optical current transducer |
| US5488291A (en) * | 1993-10-21 | 1996-01-30 | Fuji Electric Co., Ltd. | Optical current transformer |
| US5973492A (en) * | 1997-04-16 | 1999-10-26 | Ma; Xianyun | High accuracy optical current transducer thta eliminates birefringence |
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