JPS62157526A - 多点監視システム - Google Patents
多点監視システムInfo
- Publication number
- JPS62157526A JPS62157526A JP29803885A JP29803885A JPS62157526A JP S62157526 A JPS62157526 A JP S62157526A JP 29803885 A JP29803885 A JP 29803885A JP 29803885 A JP29803885 A JP 29803885A JP S62157526 A JPS62157526 A JP S62157526A
- Authority
- JP
- Japan
- Prior art keywords
- optical
- optical fiber
- light
- loss
- optical loss
- 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
- 238000012544 monitoring process Methods 0.000 title claims description 19
- 230000003287 optical effect Effects 0.000 claims description 52
- 239000013307 optical fiber Substances 0.000 claims description 34
- 230000007246 mechanism Effects 0.000 claims description 27
- 230000008859 change Effects 0.000 claims description 10
- 230000007423 decrease Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Light Guides In General And Applications Therefor (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29803885A JPS62157526A (ja) | 1985-12-28 | 1985-12-28 | 多点監視システム |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29803885A JPS62157526A (ja) | 1985-12-28 | 1985-12-28 | 多点監視システム |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62157526A true JPS62157526A (ja) | 1987-07-13 |
| JPH0551089B2 JPH0551089B2 (enExample) | 1993-07-30 |
Family
ID=17854317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29803885A Granted JPS62157526A (ja) | 1985-12-28 | 1985-12-28 | 多点監視システム |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62157526A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008032592A (ja) * | 2006-07-31 | 2008-02-14 | Central Japan Railway Co | 光ファイバ路線監視システム |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55105909A (en) * | 1979-02-08 | 1980-08-14 | Furukawa Electric Co Ltd | Electric cable |
| JPS58163097A (ja) * | 1982-03-24 | 1983-09-27 | 古河電気工業株式会社 | 光フアイバ感知線 |
| JPS5932815A (ja) * | 1982-08-18 | 1984-02-22 | Fujitsu Ltd | センシング方式 |
-
1985
- 1985-12-28 JP JP29803885A patent/JPS62157526A/ja active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55105909A (en) * | 1979-02-08 | 1980-08-14 | Furukawa Electric Co Ltd | Electric cable |
| JPS58163097A (ja) * | 1982-03-24 | 1983-09-27 | 古河電気工業株式会社 | 光フアイバ感知線 |
| JPS5932815A (ja) * | 1982-08-18 | 1984-02-22 | Fujitsu Ltd | センシング方式 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008032592A (ja) * | 2006-07-31 | 2008-02-14 | Central Japan Railway Co | 光ファイバ路線監視システム |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0551089B2 (enExample) | 1993-07-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |