JPH02118206U - - Google Patents

Info

Publication number
JPH02118206U
JPH02118206U JP1990019503U JP1950390U JPH02118206U JP H02118206 U JPH02118206 U JP H02118206U JP 1990019503 U JP1990019503 U JP 1990019503U JP 1950390 U JP1950390 U JP 1950390U JP H02118206 U JPH02118206 U JP H02118206U
Authority
JP
Japan
Prior art keywords
signal
delayed
amplitude
terminal
comparators
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
JP1990019503U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0428005Y2 (en]
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 filed Critical
Publication of JPH02118206U publication Critical patent/JPH02118206U/ja
Application granted granted Critical
Publication of JPH0428005Y2 publication Critical patent/JPH0428005Y2/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
    • G01B11/10—Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving
    • G01B11/105—Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving using photoelectric detection means
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Communication Control (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
JP1990019503U 1979-09-04 1990-03-01 Expired JPH0428005Y2 (en])

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/072,011 US4280827A (en) 1979-09-04 1979-09-04 System for measuring optical waveguide fiber diameter

Publications (2)

Publication Number Publication Date
JPH02118206U true JPH02118206U (en]) 1990-09-21
JPH0428005Y2 JPH0428005Y2 (en]) 1992-07-07

Family

ID=22105002

Family Applications (2)

Application Number Title Priority Date Filing Date
JP12220180A Pending JPS5644820A (en) 1979-09-04 1980-09-03 Signal processing device
JP1990019503U Expired JPH0428005Y2 (en]) 1979-09-04 1990-03-01

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP12220180A Pending JPS5644820A (en) 1979-09-04 1980-09-03 Signal processing device

Country Status (6)

Country Link
US (1) US4280827A (en])
EP (1) EP0024953B1 (en])
JP (2) JPS5644820A (en])
AT (1) ATE17783T1 (en])
CA (1) CA1132374A (en])
DE (1) DE3071392D1 (en])

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1119599B (it) * 1979-12-07 1986-03-10 Cselt Centro Studi Lab Telecom Procedimento per la sagomatura sferica delle terminazioni delle fibre ottiche
US4343637A (en) * 1980-08-15 1982-08-10 Owens-Corning Fiberglas Corporation Method and apparatus for monitoring the diameter of fibers
FR2536860B1 (fr) * 1982-11-25 1985-06-14 Saint Gobain Isover Procede et dispositif pour l'analyse d'heterogeneites dans un materiau transparent
GB2148273B (en) * 1983-10-22 1986-11-05 Standard Telephones Cables Ltd Optical fibre fabrication by the rod-in-tube method
FR2584180A2 (fr) * 1985-06-28 1987-01-02 Thomson Csf Dispositif de mesure du centrage d'un barreau cylindrique dans un revetement transparent cylindrique
DE3715922C2 (de) * 1986-05-15 1995-07-20 Klaus Dipl Ing Jakob Verfahren und Anordnung zur Messung der Dicke eines fadenförmigen Objekts
US4775400A (en) * 1987-10-22 1988-10-04 Ppg Industries, Inc. Method of controlling glass fiber formation and control system
US4902327A (en) * 1988-04-27 1990-02-20 Raynet Corporation Monitoring fiber bend loss characteristics during manufacture
US4877436A (en) * 1989-03-13 1989-10-31 Sheinkop Isac Continuous viscosity monitoring of glass
JP2765033B2 (ja) * 1989-04-14 1998-06-11 住友電気工業株式会社 光ファイバーの線引方法
US5015867A (en) * 1989-08-30 1991-05-14 Ppg Industries, Inc. Apparatus and methods for measuring the diameter of a moving elongated material
US5172421A (en) * 1991-03-27 1992-12-15 Hughes Aircraft Company Automated method of classifying optical fiber flaws
US5309221A (en) * 1991-12-31 1994-05-03 Corning Incorporated Measurement of fiber diameters with high precision
US5283628A (en) * 1991-12-31 1994-02-01 Corning Incorporated Method for measuring diameters of non-circular fibers
US5314517A (en) * 1992-12-31 1994-05-24 Corning Incorporated Method controlling the draw rate in the drawing of a glass feedstock
US5408308A (en) * 1993-01-29 1995-04-18 Corning Incorporated Method for monitoring hermetically-coated fibers
US5443610A (en) * 1994-01-29 1995-08-22 Corning Incorporated Apparatus for controlling fiber diameter during drawing
US5519487A (en) * 1994-12-30 1996-05-21 Corning Incorporated Method for monitoring the position of a fiber
GB9722549D0 (en) 1997-10-24 1997-12-24 Univ Southampton Fabricating optical waveguide gratings and/or characterising optical waveguides
US6151336A (en) * 1998-02-11 2000-11-21 Sorrento Networks, Inc. Time division multiplexing expansion subsystem
US6400478B1 (en) 1998-04-02 2002-06-04 Sorrento Networks, Inc. Wavelength-division-multiplexed optical transmission system with expanded bidirectional transmission capacity over a single fiber
US6298103B1 (en) 1998-06-16 2001-10-02 Sorrento Networks Corporation Flexible clock and data recovery module for a DWDM optical communication system with multiple clock rates
US6371394B1 (en) 1998-12-23 2002-04-16 Pirelli Cavi E Sistemi S.P.A. Method for winding a fibre element having different longitudinal portions
AU7788800A (en) * 1999-10-29 2001-05-14 Pirelli Cavi E Sistemi S.P.A. Method of measuring the twist imparted to an optical fibre and procedure for processing an optical fibre using this method
US7072051B1 (en) 2002-05-09 2006-07-04 Powerscope Incorporated Laser diffraction process and apparatus for width measurement of elongated objects
BRPI0823097A2 (pt) 2008-09-19 2015-06-16 Prysmian Spa Processo para fabricar uma fibra óptica microestrutura, método para controlar uma fibra óptica microestruturada, e, sistema de controle de microestrutura.
JP5017456B2 (ja) * 2009-04-09 2012-09-05 株式会社フジクラ 空孔付き光ファイバの空孔径の測定方法、ならびに空孔付き光ファイバの製造方法
US9939390B2 (en) 2013-06-25 2018-04-10 Prysmian S.P.A. Method for detecting defects in a rod-shaped transparent object
CN107076544B (zh) 2014-06-17 2020-09-15 贺利氏石英北美有限责任公司 用于测量透明筒状制品的设备及方法
CN104537414B (zh) * 2015-01-08 2017-09-12 山东师范大学 基于光纤的光学条纹自动计数装置及计数方法
CN115093113B (zh) * 2022-06-17 2023-12-05 中国工程物理研究院激光聚变研究中心 一种用于微纳光纤拉制的直径在线监控系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4311707Y1 (en]) * 1966-07-19 1968-05-21
JPS49114475A (en]) * 1973-02-28 1974-10-31
JPS5232380A (en) * 1975-09-05 1977-03-11 Yaskawa Electric Mfg Co Ltd Photoelectric type revolution speed detector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982816A (en) * 1974-06-21 1976-09-28 Western Electric Company, Inc. Method for measuring the parameters of optical fibers
US4043673A (en) * 1975-04-09 1977-08-23 Autech Corporation Reticle calibrated diameter gauge
US4046536A (en) * 1976-08-13 1977-09-06 Western Electric Company, Inc. Monitoring and control of optical fiber diameters
US4176961A (en) * 1977-09-26 1979-12-04 Western Electric Co., Inc. Methods and apparatus for improving the resolution of measured parameters

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4311707Y1 (en]) * 1966-07-19 1968-05-21
JPS49114475A (en]) * 1973-02-28 1974-10-31
JPS5232380A (en) * 1975-09-05 1977-03-11 Yaskawa Electric Mfg Co Ltd Photoelectric type revolution speed detector

Also Published As

Publication number Publication date
DE3071392D1 (en) 1986-03-13
EP0024953A3 (en) 1982-01-20
EP0024953B1 (en) 1986-01-29
JPS5644820A (en) 1981-04-24
EP0024953A2 (en) 1981-03-11
US4280827A (en) 1981-07-28
JPH0428005Y2 (en]) 1992-07-07
CA1132374A (en) 1982-09-28
ATE17783T1 (de) 1986-02-15

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