JPS5762004A - Optical fiber for detecting oil leakage - Google Patents

Optical fiber for detecting oil leakage

Info

Publication number
JPS5762004A
JPS5762004A JP55072188A JP7218880A JPS5762004A JP S5762004 A JPS5762004 A JP S5762004A JP 55072188 A JP55072188 A JP 55072188A JP 7218880 A JP7218880 A JP 7218880A JP S5762004 A JPS5762004 A JP S5762004A
Authority
JP
Japan
Prior art keywords
parts
optical fiber
cladding
coating
cores
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
Application number
JP55072188A
Other languages
English (en)
Inventor
Naonari Sasano
Kenji Totsuka
Kiyoshi Shibuya
Noboru Kurosawa
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.)
SWCC Corp
Original Assignee
Showa Electric Wire and Cable Co
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 Showa Electric Wire and Cable Co filed Critical Showa Electric Wire and Cable Co
Priority to JP55072188A priority Critical patent/JPS5762004A/ja
Publication of JPS5762004A publication Critical patent/JPS5762004A/ja
Pending 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
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G01M3/165—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means by means of cables or similar elongated devices, e.g. tapes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
JP55072188A 1980-05-30 1980-05-30 Optical fiber for detecting oil leakage Pending JPS5762004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55072188A JPS5762004A (en) 1980-05-30 1980-05-30 Optical fiber for detecting oil leakage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55072188A JPS5762004A (en) 1980-05-30 1980-05-30 Optical fiber for detecting oil leakage

Publications (1)

Publication Number Publication Date
JPS5762004A true JPS5762004A (en) 1982-04-14

Family

ID=13481978

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55072188A Pending JPS5762004A (en) 1980-05-30 1980-05-30 Optical fiber for detecting oil leakage

Country Status (1)

Country Link
JP (1) JPS5762004A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59171903A (ja) * 1983-03-18 1984-09-28 Furukawa Electric Co Ltd:The 液体検知光フアイバ−
JPS62217205A (ja) * 1986-03-06 1987-09-24 サントル・スイス・デレクトロニク・エ・ド・ミクロテクニク・ソシエテ・アノニム フアイバ−オプテイツクセンサ−
US5532493A (en) * 1994-01-21 1996-07-02 The United States Of America As Represented By The Secretary Of The Air Force Optical waveguide chemical and biological sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59171903A (ja) * 1983-03-18 1984-09-28 Furukawa Electric Co Ltd:The 液体検知光フアイバ−
JPS62217205A (ja) * 1986-03-06 1987-09-24 サントル・スイス・デレクトロニク・エ・ド・ミクロテクニク・ソシエテ・アノニム フアイバ−オプテイツクセンサ−
US5532493A (en) * 1994-01-21 1996-07-02 The United States Of America As Represented By The Secretary Of The Air Force Optical waveguide chemical and biological sensor

Similar Documents

Publication Publication Date Title
JPS57106838A (en) Optical fiber for sensor
EP0204493A3 (en) Fibre optic coupler
AU1642592A (en) Waveguide sensor
DE69226442D1 (de) Optische faser für spektroskopischen nachweis
EP0184270A3 (en) Fiber coupler displacement transducer
JPS5762004A (en) Optical fiber for detecting oil leakage
JPS5648533A (en) Leakage detector for liquid
JPS56167115A (en) Connection structure of multicore optical fiber
JPS56112621A (en) Optical detecting device for temperature
GB1463910A (en) Liquid level sensor
JPS57190903A (en) Electromagnetic wave transmitter
JPS54155856A (en) Optical fiber sensor
JPS57196134A (en) Liquid identifying method
JPS57124228A (en) Standard optical fiber for excitation
JPS51129252A (en) Optical cell for measuring optical transmission lines
JPS5595887A (en) Detector
JPS5374084A (en) Measuring method for refractive index distribution of optical transmission path
JPS53140051A (en) Method and system for measuring transmission loss of optical fiber
JPS5345258A (en) Measuring method and system for transmission property of optical fiber
JPS53148488A (en) Detecting method of leaking points of fluid conveying paths and apparatus for the same
JPS5770501A (en) Photocoupler
JPS5473058A (en) Identifying method of optical fibers
JPS535644A (en) Optical fibre combining device
JPS5462841A (en) Photo directional coupler
JPS54104860A (en) Measuring method of optical fiber connection loss and measuring apparatus for the same