FR2351384B1 - - Google Patents

Info

Publication number
FR2351384B1
FR2351384B1 FR7714427A FR7714427A FR2351384B1 FR 2351384 B1 FR2351384 B1 FR 2351384B1 FR 7714427 A FR7714427 A FR 7714427A FR 7714427 A FR7714427 A FR 7714427A FR 2351384 B1 FR2351384 B1 FR 2351384B1
Authority
FR
France
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
Application number
FR7714427A
Other versions
FR2351384A1 (fr
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.)
AT&T Corp
Original Assignee
Western Electric 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of FR2351384A1 publication Critical patent/FR2351384A1/fr
Application granted granted Critical
Publication of FR2351384B1 publication Critical patent/FR2351384B1/fr
Granted 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
    • 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
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/8422—Investigating thin films, e.g. matrix isolation method
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR7714427A 1976-05-12 1977-05-11 Procede de surveillance des proprietes d'un revetement, notamment de fibres optiques Granted FR2351384A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/685,527 US4042723A (en) 1976-05-12 1976-05-12 Method for monitoring the properties of plastic coatings on optical fibers

Publications (2)

Publication Number Publication Date
FR2351384A1 FR2351384A1 (fr) 1977-12-09
FR2351384B1 true FR2351384B1 (fr) 1982-08-13

Family

ID=24752583

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7714427A Granted FR2351384A1 (fr) 1976-05-12 1977-05-11 Procede de surveillance des proprietes d'un revetement, notamment de fibres optiques

Country Status (9)

Country Link
US (1) US4042723A (fr)
JP (1) JPS52138962A (fr)
BE (1) BE854402A (fr)
CA (1) CA1059595A (fr)
DE (1) DE2720951C3 (fr)
FR (1) FR2351384A1 (fr)
GB (1) GB1532343A (fr)
IT (1) IT1084676B (fr)
NL (1) NL7705213A (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4124728A (en) * 1977-01-31 1978-11-07 Bell Telephone Laboratories, Incorporated Method for monitoring the concentricity of plastic coatings on optical fibers
US4136961A (en) * 1977-07-01 1979-01-30 Corning Glass Works Method and apparatus for detection of inclusions in glass article or the like
US4168907A (en) * 1977-12-30 1979-09-25 Bell Telephone Laboratories, Incorporated Method for inspecting transparent rods
FR2469727A1 (fr) * 1979-11-16 1981-05-22 Thomson Csf Procede de centrage automatique d'une fibre optique dans un revetement de protection primaire, et dispositif utilise pour la mise en oeuvre de ce procede
US4363827A (en) * 1981-02-23 1982-12-14 Bell Telephone Laboratories, Incorporated Manufacture of concentric coatings for fiber waveguides
US4390897A (en) * 1981-04-17 1983-06-28 Western Electric Company, Inc. Technique for automatically centering a lightguide fiber in a coating
US4583851A (en) * 1981-07-13 1986-04-22 Northern Telecom Limited Method and apparatus for monitoring optical fiber concentricity
DE3229263C2 (de) * 1982-08-05 1986-11-06 Dipl.-Ing. Bruno Richter GmbH & Co. Elektronische Betriebskontroll-Geräte KG, 8602 Stegaurach Optisch-elektrische Meßeinrichtung zum Messen der Lage und/oder der Abmessung von Gegenständen
GB2165668B (en) * 1984-10-10 1988-03-02 Stc Plc Coating optical fibres
JPH0711409B2 (ja) * 1985-02-27 1995-02-08 古河電気工業株式会社 長尺体の被覆偏心率測定方法
US4973343A (en) * 1989-06-02 1990-11-27 At&T Bell Laboratories Optical fiber coating control apparatus
US5141768A (en) * 1989-08-02 1992-08-25 Asmo Co., Ltd. Method and apparatus for correcting dynamic balance of rotating body
FR2651312B1 (fr) * 1989-08-25 1992-01-17 France Etat Procede et dispositif de caracterisation geometrique de tubes transparents.
IT1240980B (it) * 1990-09-10 1993-12-27 Sip Apparecchiatura per la misura e il controllo dell'eccentricita' dello strato di rivestimento colorato di fibre ottiche.
US5323225A (en) * 1992-08-26 1994-06-21 Andrew Corporation Method of determining azimuthal position of transverse axes of optical fibers with elliptical cores
FR2743142B1 (fr) * 1995-12-28 1998-01-23 Alcatel Fibres Optiques Dispositif de controle du revetement d'un produit filaire en mouvement a encombrement reduit
ES2183927T3 (es) 1996-06-21 2003-04-01 Pirelli Cavi E Sistemi Spa Composicion aislante resistente a un arbol de agua.
US6034774A (en) * 1998-06-26 2000-03-07 Eastman Kodak Company Method for determining the retardation of a material using non-coherent light interferometery
GB2345539A (en) * 1999-01-06 2000-07-12 Samfit Uk Ltd Detecting a non-uniform coating on a core member
US6613427B1 (en) * 2001-10-04 2003-09-02 The United States Of America As Represented By The United States Department Of Energy Method for applying high emissivity coating
US10101481B2 (en) * 2014-10-03 2018-10-16 Pgs Geophysical As Floodable optical apparatus, methods and systems
DE102017114879A1 (de) * 2017-07-04 2019-01-10 INOEX GmbH Innovationen und Ausrüstungen für die Extrusionstechnik Terahertz-Messvorrichtung und ein Terahertz-Messverfahren zum Vermessen von Prüfobjekten

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879128A (en) * 1973-08-15 1975-04-22 Bell Telephone Labor Inc Method and apparatus for measuring the refractive index and diameter of optical fibers

Also Published As

Publication number Publication date
FR2351384A1 (fr) 1977-12-09
DE2720951A1 (de) 1977-12-01
JPS5540808B2 (fr) 1980-10-20
JPS52138962A (en) 1977-11-19
US4042723A (en) 1977-08-16
GB1532343A (en) 1978-11-15
DE2720951B2 (de) 1980-06-26
IT1084676B (it) 1985-05-28
DE2720951C3 (de) 1981-06-04
NL7705213A (nl) 1977-11-15
BE854402A (fr) 1977-09-01
CA1059595A (fr) 1979-07-31

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Legal Events

Date Code Title Description
ST Notification of lapse