DE3771865D1 - Faseroptisches bau-ueberwachungssystem. - Google Patents

Faseroptisches bau-ueberwachungssystem.

Info

Publication number
DE3771865D1
DE3771865D1 DE8787301289T DE3771865T DE3771865D1 DE 3771865 D1 DE3771865 D1 DE 3771865D1 DE 8787301289 T DE8787301289 T DE 8787301289T DE 3771865 T DE3771865 T DE 3771865T DE 3771865 D1 DE3771865 D1 DE 3771865D1
Authority
DE
Germany
Prior art keywords
physical movement
spaced points
monitoring system
optical fibre
fiber optical
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
DE8787301289T
Other languages
English (en)
Inventor
Richard W Griffiths
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.)
G2 Systems Corp
Original Assignee
G2 Systems Corp
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 G2 Systems Corp filed Critical G2 Systems Corp
Application granted granted Critical
Publication of DE3771865D1 publication Critical patent/DE3771865D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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]
    • G01M11/086—Details about the embedment of the optical fiber within the 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
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
    • G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means
    • G01M3/047—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means with photo-electrical detection means, e.g. using optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
DE8787301289T 1987-02-13 1987-02-13 Faseroptisches bau-ueberwachungssystem. Expired - Fee Related DE3771865D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19870301289 EP0278143B1 (de) 1987-02-13 1987-02-13 Faseroptisches Bau-Überwachungssystem

Publications (1)

Publication Number Publication Date
DE3771865D1 true DE3771865D1 (de) 1991-09-05

Family

ID=8197790

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787301289T Expired - Fee Related DE3771865D1 (de) 1987-02-13 1987-02-13 Faseroptisches bau-ueberwachungssystem.

Country Status (2)

Country Link
EP (1) EP0278143B1 (de)
DE (1) DE3771865D1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2770189A (en) * 1988-01-06 1989-07-06 Unisearch Limited Use of optical fibre in pressure sensitive transducers
IT1237486B (it) * 1989-06-23 1993-06-07 Agip Spa Procedimento e dispositivo a sensori interferometrici a fibra ottica per l'analisi della deformazione dinamica di una struttura o di suoi componenti
US5557400A (en) * 1995-02-15 1996-09-17 Hewlett-Packard Company Multiplexed sensing using optical coherence reflectrometry
WO1996031756A1 (en) * 1995-04-04 1996-10-10 Cambridge University Technical Services Limited Optical fibre sensor
US20060233485A1 (en) 2005-03-23 2006-10-19 Allen Donald W Underwater structure monitoring systems and methods
GB2456830B (en) * 2008-01-28 2012-03-14 Schlumberger Holdings Structural load monitoring using collars and connecting elements with strain sensors
US8664585B2 (en) * 2010-11-15 2014-03-04 Siemens Energy, Inc. Sensor apparatus for detecting and monitoring a crack propagating through a structure
CN105892388A (zh) * 2016-06-06 2016-08-24 中国船舶重工集团公司第七〇九研究所 一种海洋平台监测与控制系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1570511A (en) * 1976-08-20 1980-07-02 Standard Telephones Cables Ltd Strain threshold alarm device
DE2937824C2 (de) * 1979-09-19 1982-05-06 Felten & Guilleaume Carlswerk AG, 5000 Köln Verfahren zur Bruch-Überwachung von auf Zug beanspruchten Bauteilen
GB2091874B (en) * 1981-01-22 1984-11-14 Secr Defence Intruder detection system
GB2124784B (en) * 1982-05-17 1985-10-09 Westland Plc Apparatus for detecting the onset of cracks or fractures
GB2125179B (en) * 1982-08-03 1986-08-06 Standard Telephones Cables Ltd Distributed sensors
DE3305234C2 (de) * 1983-02-16 1986-02-27 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Zugfester Draht aus einer faserverstärkten Harzstruktur mit mindestens einem darin eingeschlossenen Lichtwellenleiter
GB8322485D0 (en) * 1983-08-20 1983-09-21 Nmi Ltd Crack monitor systems
GB8322486D0 (en) * 1983-08-20 1983-09-21 Nmi Ltd Crack monitors
GB8322487D0 (en) * 1983-08-20 1983-09-21 Nmi Ltd Crack monitors
FR2559262B1 (fr) * 1984-02-07 1990-03-02 France Etat Procede et dispositif de controle non destructif dans une structure en masse

Also Published As

Publication number Publication date
EP0278143B1 (de) 1991-07-31
EP0278143A1 (de) 1988-08-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee