JPS59104531A - 光フアイバケ−ブル破断予知装置 - Google Patents

光フアイバケ−ブル破断予知装置

Info

Publication number
JPS59104531A
JPS59104531A JP21422482A JP21422482A JPS59104531A JP S59104531 A JPS59104531 A JP S59104531A JP 21422482 A JP21422482 A JP 21422482A JP 21422482 A JP21422482 A JP 21422482A JP S59104531 A JPS59104531 A JP S59104531A
Authority
JP
Japan
Prior art keywords
level
loss
cable
increase
optical signal
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
Application number
JP21422482A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0220049B2 (enExample
Inventor
Kazuyoshi Shikayama
鹿山　和義
Yoshinori Ishihata
石幡　吉則
Fujio Otsuka
富士夫 大塚
Mamoru Takahira
高平　衛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tohoku Electric Power Co Inc
Original Assignee
Tohoku Electric Power Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tohoku Electric Power Co Inc filed Critical Tohoku Electric Power Co Inc
Priority to JP21422482A priority Critical patent/JPS59104531A/ja
Publication of JPS59104531A publication Critical patent/JPS59104531A/ja
Publication of JPH0220049B2 publication Critical patent/JPH0220049B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
JP21422482A 1982-12-07 1982-12-07 光フアイバケ−ブル破断予知装置 Granted JPS59104531A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21422482A JPS59104531A (ja) 1982-12-07 1982-12-07 光フアイバケ−ブル破断予知装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21422482A JPS59104531A (ja) 1982-12-07 1982-12-07 光フアイバケ−ブル破断予知装置

Publications (2)

Publication Number Publication Date
JPS59104531A true JPS59104531A (ja) 1984-06-16
JPH0220049B2 JPH0220049B2 (enExample) 1990-05-08

Family

ID=16652253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21422482A Granted JPS59104531A (ja) 1982-12-07 1982-12-07 光フアイバケ−ブル破断予知装置

Country Status (1)

Country Link
JP (1) JPS59104531A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6411409A (en) * 1987-07-03 1989-01-17 Nec Corp Optical fiber pulse generator
EP2403164A1 (fr) * 2010-07-01 2012-01-04 France Telecom Procédé et dispositif de détermination d'un risque de coupure d'une fibre optique

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5612533A (en) * 1979-07-13 1981-02-06 Hitachi Ltd Vibration monitoring device for rotary machine
JPS5769228A (en) * 1980-10-18 1982-04-27 Fuji Electric Co Ltd Deterioration detection system for optical transmitting circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5612533A (en) * 1979-07-13 1981-02-06 Hitachi Ltd Vibration monitoring device for rotary machine
JPS5769228A (en) * 1980-10-18 1982-04-27 Fuji Electric Co Ltd Deterioration detection system for optical transmitting circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6411409A (en) * 1987-07-03 1989-01-17 Nec Corp Optical fiber pulse generator
EP2403164A1 (fr) * 2010-07-01 2012-01-04 France Telecom Procédé et dispositif de détermination d'un risque de coupure d'une fibre optique

Also Published As

Publication number Publication date
JPH0220049B2 (enExample) 1990-05-08

Similar Documents

Publication Publication Date Title
WO2019172276A1 (ja) 光ファイバケーブル監視方法および光ファイバケーブル監視システム
US4878049A (en) Information transmission system for railway vehicles
EP0279355A2 (en) A remote maintenance system for a digital communication network
JPS59104531A (ja) 光フアイバケ−ブル破断予知装置
EP0617525B1 (en) Light path switching system
JPH10153522A (ja) 光ファイバーケーブルをモニターする方法
CN108692746B (zh) 传感监测终端、传感监测系统和传感监测方法
JPH02130447A (ja) 光ファイバ線路の監視システム
JPH0583876B2 (enExample)
JPH05264637A (ja) 架空地線の素線切れ検出装置
JPS59203967A (ja) 非接地系配電線路の断線検出方式
JPS5895243A (ja) Ｏｆケ−ブル線路の漏油点検出方法
KR20250029415A (ko) 콘크리트 구조물 모니터링 시스템
KR101460326B1 (ko) 광케이블 장애 감시 시스템, 방법 및 그 방법을 기록한기록매체
JP3156687B2 (ja) 海底ケーブルシステムにおける情報管理方法
JP3262429B2 (ja) 配電系統の操作装置
JP2501364B2 (ja) 絶縁試験装置
JPH0337384B2 (enExample)
JPH06324100A (ja) 電力用機器の運転保守支援システム
JPH0247176B2 (enExample)
AU2019268162B2 (en) A power management system and device for flameproof alternators
JPS59131177A (ja) 送電線故障位置検出装置
JP2569811B2 (ja) 地中送電線路の事故点標定方法
JPH04242175A (ja) 送電線路の事故発生区間の標定方法
JP2821473B2 (ja) 高圧配電線の予知地絡故障区間の検出切離し方法