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BR9003105A - Dispositivo baseado em sensores interferometricos de fibras oticas para analise da deformacao dinamica de uma estrutura ou de seus componentes e metodo de analise de deformacoes dinamicas - Google Patents

Dispositivo baseado em sensores interferometricos de fibras oticas para analise da deformacao dinamica de uma estrutura ou de seus componentes e metodo de analise de deformacoes dinamicas

Info

Publication number
BR9003105A
BR9003105A BR909003105A BR9003105A BR9003105A BR 9003105 A BR9003105 A BR 9003105A BR 909003105 A BR909003105 A BR 909003105A BR 9003105 A BR9003105 A BR 9003105A BR 9003105 A BR9003105 A BR 9003105A
Authority
BR
Brazil
Prior art keywords
analysis
dynamic
components
optical fibers
device based
Prior art date
Application number
BR909003105A
Other languages
English (en)
Inventor
Paolo Campelli
Mario Martinelli
Original Assignee
Agip Spa
Cise 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 Agip Spa, Cise Spa filed Critical Agip Spa
Publication of BR9003105A publication Critical patent/BR9003105A/pt

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
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/08—Testing mechanical properties
    • G01M11/083—Testing mechanical properties by using an optical fiber in contact with the device under test [DUT]
    • 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
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/35383—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using multiple sensor devices using multiplexing techniques

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
BR909003105A 1989-06-23 1990-06-22 Dispositivo baseado em sensores interferometricos de fibras oticas para analise da deformacao dinamica de uma estrutura ou de seus componentes e metodo de analise de deformacoes dinamicas BR9003105A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8920963A IT1237486B (it) 1989-06-23 1989-06-23 Procedimento e dispositivo a sensori interferometrici a fibra ottica per l'analisi della deformazione dinamica di una struttura o di suoi componenti

Publications (1)

Publication Number Publication Date
BR9003105A true BR9003105A (pt) 1991-08-27

Family

ID=11174691

Family Applications (1)

Application Number Title Priority Date Filing Date
BR909003105A BR9003105A (pt) 1989-06-23 1990-06-22 Dispositivo baseado em sensores interferometricos de fibras oticas para analise da deformacao dinamica de uma estrutura ou de seus componentes e metodo de analise de deformacoes dinamicas

Country Status (9)

Country Link
EP (1) EP0404242B1 (pt)
JP (1) JP3057322B2 (pt)
BR (1) BR9003105A (pt)
DE (1) DE69002702T2 (pt)
DK (1) DK0404242T3 (pt)
ES (1) ES2043254T3 (pt)
IT (1) IT1237486B (pt)
MX (1) MX172748B (pt)
NO (1) NO300345B1 (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689632B1 (fr) * 1992-04-02 1997-09-19 Thomson Csf Detecteur a fibre optique de contraintes.
WO1996031756A1 (en) * 1995-04-04 1996-10-10 Cambridge University Technical Services Limited Optical fibre sensor
US5892860A (en) * 1997-01-21 1999-04-06 Cidra Corporation Multi-parameter fiber optic sensor for use in harsh environments
US6016702A (en) * 1997-09-08 2000-01-25 Cidra Corporation High sensitivity fiber optic pressure sensor for use in harsh environments
DE19905687A1 (de) * 1999-02-11 2000-09-07 Deha Ankersysteme Vorrichtung zur Bestimmung der Biegebeanspruchung von Bauteilen
CA2312237A1 (en) * 2000-06-23 2001-12-23 Erick Girouard Pressure regulator
DE102006059439B4 (de) * 2006-12-15 2018-01-25 Prüftechnik Dieter Busch AG Verfahren und Vorrichtung zur dynamischen Messung der axialen Deformation einer rotierenden Hohlwelle
EP2166328A1 (en) * 2008-09-22 2010-03-24 Universita' degli studi di Bari System for optical fiber strain measure
JP5619571B2 (ja) * 2010-11-05 2014-11-05 三菱重工業株式会社 ライザー管及びライザー管の応答分布計測システム

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0278143B1 (en) * 1987-02-13 1991-07-31 G2 SYSTEMS CORPORATION (a California corporation) Structural monitoring system using fiber optics
GB2136113B (en) * 1983-03-05 1986-08-06 Plessey Co Plc Improvements relating to optical sensing systems
GB2144215B (en) * 1983-07-28 1988-06-22 Cise Spa Interferometric detector with fibre-optic sensor
GB2147759B (en) * 1983-08-24 1987-04-15 Plessey Co Plc Optical sensor
US4788868A (en) * 1986-03-27 1988-12-06 The Charles Stark Draper Laboratory, Inc. Strain measurement apparatus and method

Also Published As

Publication number Publication date
JP3057322B2 (ja) 2000-06-26
ES2043254T3 (es) 1993-12-16
NO902763D0 (no) 1990-06-21
DE69002702T2 (de) 1994-03-10
EP0404242B1 (en) 1993-08-11
JPH0354427A (ja) 1991-03-08
EP0404242A1 (en) 1990-12-27
DE69002702D1 (de) 1993-09-16
IT1237486B (it) 1993-06-07
NO300345B1 (no) 1997-05-12
IT8920963A0 (it) 1989-06-23
DK0404242T3 (da) 1993-10-25
MX172748B (es) 1994-01-10
NO902763L (no) 1990-12-27

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Legal Events

Date Code Title Description
FG Letter patent granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 22/06/2005