DE3788045T2 - Verfahren zur Messung der Viskosität des Vorformlings einer optischen Faser. - Google Patents

Verfahren zur Messung der Viskosität des Vorformlings einer optischen Faser.

Info

Publication number
DE3788045T2
DE3788045T2 DE87118266T DE3788045T DE3788045T2 DE 3788045 T2 DE3788045 T2 DE 3788045T2 DE 87118266 T DE87118266 T DE 87118266T DE 3788045 T DE3788045 T DE 3788045T DE 3788045 T2 DE3788045 T2 DE 3788045T2
Authority
DE
Germany
Prior art keywords
viscosity
measuring
optical fiber
fiber preform
preform
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 - Fee Related
Application number
DE87118266T
Other languages
English (en)
Other versions
DE3788045D1 (de
Inventor
Giorgio Grego
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.)
Optical Technologies Center Srl Turin/torino
Original Assignee
CSELT Centro Studi e Laboratori Telecomunicazioni SpA
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 CSELT Centro Studi e Laboratori Telecomunicazioni SpA filed Critical CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Application granted granted Critical
Publication of DE3788045D1 publication Critical patent/DE3788045D1/de
Publication of DE3788045T2 publication Critical patent/DE3788045T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/44—Raman spectrometry; Scattering spectrometry ; Fluorescence spectrometry
    • G01J3/4412—Scattering spectrometry
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N2021/4704—Angular selective
    • G01N2021/4709—Backscatter
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N2021/4735—Solid samples, e.g. paper, glass

Landscapes

  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
DE87118266T 1986-12-10 1987-12-09 Verfahren zur Messung der Viskosität des Vorformlings einer optischen Faser. Expired - Fee Related DE3788045T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67920/86A IT1196832B (it) 1986-12-10 1986-12-10 Procedimento per misurare la viscosita di un corpo

Publications (2)

Publication Number Publication Date
DE3788045D1 DE3788045D1 (de) 1993-12-09
DE3788045T2 true DE3788045T2 (de) 1994-04-07

Family

ID=11306378

Family Applications (2)

Application Number Title Priority Date Filing Date
DE198787118266T Pending DE271087T1 (de) 1986-12-10 1987-12-09 Verfahren zur messung der viskositaet eines koerpers.
DE87118266T Expired - Fee Related DE3788045T2 (de) 1986-12-10 1987-12-09 Verfahren zur Messung der Viskosität des Vorformlings einer optischen Faser.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE198787118266T Pending DE271087T1 (de) 1986-12-10 1987-12-09 Verfahren zur messung der viskositaet eines koerpers.

Country Status (6)

Country Link
US (1) US4830512A (de)
EP (1) EP0271087B1 (de)
JP (1) JPS63150647A (de)
CA (1) CA1304955C (de)
DE (2) DE271087T1 (de)
IT (1) IT1196832B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7538872B1 (en) * 2006-08-02 2009-05-26 Butler Eugene W Diagnostic methods and apparatus for directed energy applications
CN102053073A (zh) * 2010-11-10 2011-05-11 南昌航空大学 一种测量氮气布里渊散射信号的方法及装置
CN106932430B (zh) * 2017-03-17 2019-10-29 四川旭虹光电科技有限公司 3d曲面玻璃热弯温度参数的确定方法
CN108195720B (zh) * 2018-01-14 2023-09-05 陕西东方长安航空科技有限公司 一种航空液压油粘度衰减控制指标测试装置与测试方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3424533A (en) * 1963-02-28 1969-01-28 Philips Corp Spectrographic analysis
BE734624A (de) * 1968-07-19 1969-12-01
US3559464A (en) * 1969-11-13 1971-02-02 Exxon Research Engineering Co Rheometer for continuous monitoring of a plastic
US4105337A (en) * 1977-05-11 1978-08-08 Bell Telephone Laboratories, Incorporated Self-induced rotation ellipsometer
US4396290A (en) * 1979-09-24 1983-08-02 University Of Utah Research Institute Two pump-frequency-stimulated Brillouin scattering ring laser gyroscope
US4299393A (en) * 1980-04-14 1981-11-10 International Laser Systems, Inc. Area radiation target
US4403502A (en) * 1981-03-04 1983-09-13 University Of Pittsburgh Viscometer for cast foaming materials and associated method
FI824185L (fi) * 1981-12-07 1983-06-08 Valmet Oy Optiskt foerfarande och optisk anordning foer maetning av konsistensen av massasuspension
US4571081A (en) * 1982-09-07 1986-02-18 Coulter Electronics Of New England, Inc. Light scattering apparatus and method
US4516864A (en) * 1982-12-27 1985-05-14 General Electric Company Non-contact sensing apparatus and method for polymer melt temperature profile determination
GB2140554A (en) * 1983-05-26 1984-11-28 Plessey Co Plc Temperature measuring arrangement
GB2170593B (en) * 1985-02-01 1988-09-14 Central Electr Generat Board Temperature measurement
US4724316A (en) * 1985-07-12 1988-02-09 Eldec Corporation Temperature independent fiber optic sensor

Also Published As

Publication number Publication date
DE271087T1 (de) 1990-08-16
EP0271087B1 (de) 1993-11-03
IT8667920A0 (it) 1986-12-10
US4830512A (en) 1989-05-16
JPS63150647A (ja) 1988-06-23
IT1196832B (it) 1988-11-25
DE3788045D1 (de) 1993-12-09
EP0271087A3 (en) 1990-01-10
JPH0549174B2 (de) 1993-07-23
CA1304955C (en) 1992-07-14
EP0271087A2 (de) 1988-06-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: OPTICAL TECHNOLOGIES CENTER S.R.L., TURIN/TORINO,

8339 Ceased/non-payment of the annual fee