JPS6418933A - Production of optical fiber - Google Patents

Production of optical fiber

Info

Publication number
JPS6418933A
JPS6418933A JP17648087A JP17648087A JPS6418933A JP S6418933 A JPS6418933 A JP S6418933A JP 17648087 A JP17648087 A JP 17648087A JP 17648087 A JP17648087 A JP 17648087A JP S6418933 A JPS6418933 A JP S6418933A
Authority
JP
Japan
Prior art keywords
optical fiber
tension
polymer
vibration frequency
coater
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
JP17648087A
Other languages
Japanese (ja)
Inventor
Hiroo Matsuda
Hiroaki Sano
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP17648087A priority Critical patent/JPS6418933A/en
Publication of JPS6418933A publication Critical patent/JPS6418933A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/0253—Controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/40—Monitoring or regulating the draw tension or draw rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To stably obtain high-strength optical fiber, by continuously detecting drawing tension of optical fiber between a drawing furnace and a polymer coater in a noncontact may with optical fiber and setting a drawing condition to maintain the drawing tension constant. CONSTITUTION:A detector 7 for vibration frequency of optical fiber to continuously detect a vibration frequency f in the direction perpendicular to the drawing direction of an optical fiber 3 in a noncontact way with optical fiber is set between a drawing furnace 2 which heats and softens an optical fiber preform 1 and a polymer coater 8 to apply a polymer to the outer periphery of the optical fiber 3 formed by drawing. Then vibration frequency f of the optical fiber is continuously detected and drawing tension T of the optical tension 3 is calculated by the formula (rho is lineal density of the optical fiber 3; l is distance between molten fiber of an optical fiber preform 1 and the polymer coater 8). Then a drawing condition is subjected to feedback to maintain the drawing tension at a desired fixed value.
JP17648087A 1987-07-15 1987-07-15 Production of optical fiber Pending JPS6418933A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17648087A JPS6418933A (en) 1987-07-15 1987-07-15 Production of optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17648087A JPS6418933A (en) 1987-07-15 1987-07-15 Production of optical fiber

Publications (1)

Publication Number Publication Date
JPS6418933A true JPS6418933A (en) 1989-01-23

Family

ID=16014404

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17648087A Pending JPS6418933A (en) 1987-07-15 1987-07-15 Production of optical fiber

Country Status (1)

Country Link
JP (1) JPS6418933A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795520A1 (en) * 1996-03-13 1997-09-17 Alcatel Fibres Optiques Process and apparatus for controlling an optical fibre draw tower taking account of the tension measured from the bare fibre
JP2016172657A (en) * 2015-03-17 2016-09-29 住友電気工業株式会社 Optical fiber manufacturing method and optical fiber

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5016585A (en) * 1973-06-09 1975-02-21
JPS5218376A (en) * 1975-07-31 1977-02-10 Maihak Ag Method of automatically calculating oscillatory frequency of extension measurement cord in digital form
JPS57196737A (en) * 1981-05-29 1982-12-02 Nippon Telegr & Teleph Corp <Ntt> Drawing apparatus for optical fiber
JPS61174140A (en) * 1985-01-29 1986-08-05 Sumitomo Electric Ind Ltd Optical fiber manufacturing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5016585A (en) * 1973-06-09 1975-02-21
JPS5218376A (en) * 1975-07-31 1977-02-10 Maihak Ag Method of automatically calculating oscillatory frequency of extension measurement cord in digital form
JPS57196737A (en) * 1981-05-29 1982-12-02 Nippon Telegr & Teleph Corp <Ntt> Drawing apparatus for optical fiber
JPS61174140A (en) * 1985-01-29 1986-08-05 Sumitomo Electric Ind Ltd Optical fiber manufacturing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795520A1 (en) * 1996-03-13 1997-09-17 Alcatel Fibres Optiques Process and apparatus for controlling an optical fibre draw tower taking account of the tension measured from the bare fibre
FR2746093A1 (en) * 1996-03-13 1997-09-19 Alcatel Fibres Optiques METHOD AND DEVICE FOR REGULATING A FIBER OPTIC FIBERING TOWER TAKING ACCOUNT OF A MEASUREMENT OF THE TENSION OF THE BARE FIBER
JP2016172657A (en) * 2015-03-17 2016-09-29 住友電気工業株式会社 Optical fiber manufacturing method and optical fiber

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