JPS5443752A - Optical cabel and inundation monitoring method using the same - Google Patents
Optical cabel and inundation monitoring method using the sameInfo
- Publication number
- JPS5443752A JPS5443752A JP11100877A JP11100877A JPS5443752A JP S5443752 A JPS5443752 A JP S5443752A JP 11100877 A JP11100877 A JP 11100877A JP 11100877 A JP11100877 A JP 11100877A JP S5443752 A JPS5443752 A JP S5443752A
- Authority
- JP
- Japan
- Prior art keywords
- optical
- inundation
- optical cable
- cable
- intensity
- 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
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
PURPOSE: To make it easy to minotor the inundation of a cable being laid by producing an optical cable in a manner to build in such an optical fiber as has its cladding layer and coating layer around a quartz core made of a high molecular organic chemical material having an excellent water permeability.
CONSTITUTION: An optical cable is produced by building in an optical fiber 6 which has its cladding layer 2 and coating layer 3 around a quartz core 1 made of a high molecular organic chemical material having an excellent water permability. During the laying operation, a light of a preset intensity is introduced from an optical transmitting section 4 into the optical fiber 6 capable of detecting the inundation. This light is received by an optical receiving section 5, which is arranged at the opposite end of an optical cable, so that its intensity may be measured. If an inundation takes place in a portion of the optical cable, the intensity of the light received is monitored by the section 5 so that the inundation monitoring operation of the optical cable can be accomplished.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11100877A JPS5443752A (en) | 1977-09-13 | 1977-09-13 | Optical cabel and inundation monitoring method using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11100877A JPS5443752A (en) | 1977-09-13 | 1977-09-13 | Optical cabel and inundation monitoring method using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5443752A true JPS5443752A (en) | 1979-04-06 |
Family
ID=14550054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11100877A Pending JPS5443752A (en) | 1977-09-13 | 1977-09-13 | Optical cabel and inundation monitoring method using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5443752A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56164208U (en) * | 1980-05-12 | 1981-12-05 | ||
| JPS56164207U (en) * | 1980-05-12 | 1981-12-05 | ||
| JPS5991201A (en) * | 1982-11-18 | 1984-05-25 | テイエヌネツト株式会社 | Construction of court |
| JPS59104104U (en) * | 1982-12-28 | 1984-07-13 | 古河電気工業株式会社 | Optical fiber for detecting oil etc. |
| JPS6284900A (en) * | 1985-10-08 | 1987-04-18 | Michio Kuroki | Machine press device |
| JPH02216030A (en) * | 1989-02-16 | 1990-08-28 | Furukawa Electric Co Ltd:The | Water infiltration detection sensor for optical fiber |
-
1977
- 1977-09-13 JP JP11100877A patent/JPS5443752A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56164208U (en) * | 1980-05-12 | 1981-12-05 | ||
| JPS56164207U (en) * | 1980-05-12 | 1981-12-05 | ||
| JPS5991201A (en) * | 1982-11-18 | 1984-05-25 | テイエヌネツト株式会社 | Construction of court |
| JPS59104104U (en) * | 1982-12-28 | 1984-07-13 | 古河電気工業株式会社 | Optical fiber for detecting oil etc. |
| JPS6224243Y2 (en) * | 1982-12-28 | 1987-06-20 | ||
| JPS6284900A (en) * | 1985-10-08 | 1987-04-18 | Michio Kuroki | Machine press device |
| JPH02216030A (en) * | 1989-02-16 | 1990-08-28 | Furukawa Electric Co Ltd:The | Water infiltration detection sensor for optical fiber |
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