JPH0220049B2 - - Google Patents

Info

Publication number
JPH0220049B2
JPH0220049B2 JP57214224A JP21422482A JPH0220049B2 JP H0220049 B2 JPH0220049 B2 JP H0220049B2 JP 57214224 A JP57214224 A JP 57214224A JP 21422482 A JP21422482 A JP 21422482A JP H0220049 B2 JPH0220049 B2 JP H0220049B2
Authority
JP
Japan
Prior art keywords
level
loss
optical fiber
cable
failure
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.)
Expired - Lifetime
Application number
JP57214224A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59104531A (ja
Inventor
Kazuyoshi Shikayama
Yoshinori Ishihata
Fujio Ootsuka
Mamoru Takahira
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)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Light Guides In General And Applications Therefor (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 JPS59104531A (ja) 1984-06-16
JPH0220049B2 true 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)

Families Citing this family (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
EP2403164B1 (fr) * 2010-07-01 2017-08-30 Orange Procédé et dispositif de détermination d'un risque de coupure d'une fibre optique

Family Cites Families (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

Also Published As

Publication number Publication date
JPS59104531A (ja) 1984-06-16

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