DE20110825U1 - Fiber optic sensor for the detection of bending conditions - Google Patents

Fiber optic sensor for the detection of bending conditions

Info

Publication number
DE20110825U1
DE20110825U1 DE20110825U DE20110825U DE20110825U1 DE 20110825 U1 DE20110825 U1 DE 20110825U1 DE 20110825 U DE20110825 U DE 20110825U DE 20110825 U DE20110825 U DE 20110825U DE 20110825 U1 DE20110825 U1 DE 20110825U1
Authority
DE
Germany
Prior art keywords
fiber
sensor
fiber optic
optic sensor
detection
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 - Lifetime
Application number
DE20110825U
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German (de)
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE20110825U priority Critical patent/DE20110825U1/en
Publication of DE20110825U1 publication Critical patent/DE20110825U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/80—Devices generating input signals, e.g. transducers, sensors, cameras or strain gauges
    • F05B2270/804—Optical devices
    • F05B2270/8041—Cameras

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Description

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (6)

1. Faseroptischer Sensor zur Erfassung von Biegezuständen, gekennzeichnet dadurch, dass: einer oder mehrere ausschließlich aus nichtmetallischen Werkstoffen bestehende Meßfühler mit LWL-Fasern und Steckverbindern an eine zentrale Auswerteeinheit angekoppelt werden können und damit das System modular erweiterbar ist.1. Fiber-optic sensor for the detection of bending states, characterized in that: one or more sensors made entirely of non-metallic materials with fiber optic fibers and connectors can be coupled to a central evaluation unit and the system can thus be modularly expanded. 2. Faseroptischer Sensor zur Erfassung von Biegezuständen, gekennzeichnet dadurch, dass: der Messfühler aus zwei relativ biegeschlaff miteinander verbundenen Bauhälften besteht, von denen eine eine optische Sendefaser mit einer Focusiereinrichtung und die andere einen optischen Empfänger in Form eines matrixartigen Empfängerfaserbündels beinhaltet.2. Fiber optic sensor for the detection of bending states, characterized in that: the sensor is made up of two relatively rigidly connected structural parts exists, one of which is an optical transmission fiber with a focusing device and others an optical receiver in the form of a matrix-like receiver fiber bundle includes. 3. Faseroptischer Sensor zur Erfassung von Biegezuständen, gekennzeichnet dadurch, dass: die zentrale Auswerteeinheit einen Microcontroller, eine optisch permanente Strahlungsquelle und ein opto-elektronisches Element, z. B. eine CCD-Zeile, enthält, das die rücklaufenden Lichtsignale in elektrische Größen umwandelt und dem Microcontroller zur Auswertung zuführt.3. Fiber optic sensor for detecting bending states, characterized in that: the central evaluation unit is a microcontroller, an optically permanent one Radiation source and an opto-electronic element, e.g. B. contains a CCD line that converts the returning light signals into electrical quantities and the microcontroller feeds for evaluation. 4. Faseroptischer Sensor zur Erfassung von Biegezuständen, gekennzeichnet dadurch, dass: die beiden Hälften des Messfühlers jeweils an unterschiedlichen Stellen des Meßobjektes befestigt werden und bei dessen Deformation eine Verschiebung des focusierten Lichtfleckes auf dem matrixförmigen Empfängerfaserbündel entsteht, die nach Auswertung im Microcontroller als Verschiebung in zwei Richtungen oder Biegung um zwei Achsen angegeben werden kann.4. Fiber-optical sensor for detecting bending states, characterized in that: the two halves of the sensor at different locations on the test object be attached and when it deforms a shift of the focused Light spot on the matrix-shaped receiver fiber bundle arises after Evaluation in the microcontroller as a shift in two directions or bending around two axes can be specified. 5. Faseroptischer Sensor zur Erfassung von Biegezuständen, gekennzeichnet dadurch, dass: die Verbindung zwischen den Meßfühlern und der Auswerteeinheit nur faseroptisch und damit weitestgehend unabhängig von der Entfernung und von elektrischen Störgrößen realisiert ist.5. Fiber-optic sensor for detecting bending states, characterized in that: the connection between the sensors and the evaluation unit is only fiber optic and therefore largely independent of the distance and electrical interference is realized. 6. Faseroptischer Sensor zur Erfassung von Biegezuständen, gekennzeichnet dadurch, dass: unabhängig vom Montagezustand oder Vorspannungen jeder beliebige Zustand als Referenzwert kalibriert werden kann, gegenüber dem dann Abweichungen auswertbar sind.6. Fiber optic sensor for the detection of bending states, characterized in that: Regardless of the state of assembly or preload, any state as Reference value can be calibrated against which deviations can then be evaluated are.
DE20110825U 2001-06-29 2001-06-29 Fiber optic sensor for the detection of bending conditions Expired - Lifetime DE20110825U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20110825U DE20110825U1 (en) 2001-06-29 2001-06-29 Fiber optic sensor for the detection of bending conditions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20110825U DE20110825U1 (en) 2001-06-29 2001-06-29 Fiber optic sensor for the detection of bending conditions

Publications (1)

Publication Number Publication Date
DE20110825U1 true DE20110825U1 (en) 2001-12-13

Family

ID=7958734

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20110825U Expired - Lifetime DE20110825U1 (en) 2001-06-29 2001-06-29 Fiber optic sensor for the detection of bending conditions

Country Status (1)

Country Link
DE (1) DE20110825U1 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10238991A1 (en) * 2002-08-20 2004-03-11 Günther GmbH Fiber optic sensor for measuring component deformation, has a monomode light source connected to a transmission optical fiber with the light detected by receiving fibers in a sensor head and measured using photo-diodes
DE10238862A1 (en) * 2002-08-24 2004-03-11 Mtu Aero Engines Gmbh Metrological arrangement for testing workpieces and methods for metrological instrumentation of workpieces
EP1780523A1 (en) * 2005-10-31 2007-05-02 General Electric Company Wind turbine systems, monitoring systems and processes for monitoring stress in a wind turbine blade
EP1788240A2 (en) * 2005-11-17 2007-05-23 General Electric Company Rotor for a wind energy turbine
WO2008101496A2 (en) * 2007-02-19 2008-08-28 Vestas Wind Systems A/S Wind turbine blade with strain sensing means, wind turbine, block sensor unit and uses hereof
WO2009052828A2 (en) * 2007-10-24 2009-04-30 Vestas Wind Systems A/S Wind turbine blade, wind turbine and method for manufacturing a wind turbine blade
WO2009143850A2 (en) * 2008-05-30 2009-12-03 Vestas Wind Systems A/S A wind turbine rotor, a wind turbine and use thereof
WO2009143848A2 (en) * 2008-05-30 2009-12-03 Vestas Wind System A/S A wind turbine rotor, a wind turbine and use thereof
GB2465790A (en) * 2008-11-28 2010-06-02 Vestas Wind Sys As System to measure load on a wind turbine blade
US7780328B2 (en) 2006-07-14 2010-08-24 Bae Systems Plc Heat distribution in a distributed lighting apparatus
EP2458206A1 (en) * 2010-11-25 2012-05-30 Baumer Innotec AG Device and method for measuring the deformation of a rotor blade under stress and error compensation
WO2012110188A1 (en) * 2011-02-17 2012-08-23 Ssb Wind Systems Gmbh & Co.Kg Optical measuring device for the deformation of a rotor blade of a wind turbine
CN104568968A (en) * 2015-01-13 2015-04-29 西安交通大学 Method and system applied to in-situ crack detection of wind generator blade
WO2016087454A3 (en) * 2014-12-04 2016-07-28 fos4X GmbH Method for monitoring a wind power plant and rotor blade comprising an acceleration sensor
EP3164669A4 (en) * 2014-07-01 2018-02-14 Sikorsky Aircraft Corporation Blade geometry characterization tool

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10238991B4 (en) * 2002-08-20 2004-08-19 Günther GmbH Fiber optic sensor
DE10238991A1 (en) * 2002-08-20 2004-03-11 Günther GmbH Fiber optic sensor for measuring component deformation, has a monomode light source connected to a transmission optical fiber with the light detected by receiving fibers in a sensor head and measured using photo-diodes
DE10238862A1 (en) * 2002-08-24 2004-03-11 Mtu Aero Engines Gmbh Metrological arrangement for testing workpieces and methods for metrological instrumentation of workpieces
DE10238862B4 (en) * 2002-08-24 2006-05-24 Mtu Aero Engines Gmbh Metrological arrangement for testing workpieces and methods for metrological instrumentation of workpieces
EP1780523A1 (en) * 2005-10-31 2007-05-02 General Electric Company Wind turbine systems, monitoring systems and processes for monitoring stress in a wind turbine blade
AU2006230719B2 (en) * 2005-10-31 2013-01-10 General Electric Renovables España, S.L. Wind turbine systems, monitoring systems and processes for monitoring stress in a wind turbine blade
EP1788240A2 (en) * 2005-11-17 2007-05-23 General Electric Company Rotor for a wind energy turbine
EP1788240A3 (en) * 2005-11-17 2012-10-17 General Electric Company Rotor for a wind energy turbine
US7780328B2 (en) 2006-07-14 2010-08-24 Bae Systems Plc Heat distribution in a distributed lighting apparatus
WO2008101496A2 (en) * 2007-02-19 2008-08-28 Vestas Wind Systems A/S Wind turbine blade with strain sensing means, wind turbine, block sensor unit and uses hereof
WO2008101496A3 (en) * 2007-02-19 2008-10-30 Vestas Wind Sys As Wind turbine blade with strain sensing means, wind turbine, block sensor unit and uses hereof
WO2009052828A2 (en) * 2007-10-24 2009-04-30 Vestas Wind Systems A/S Wind turbine blade, wind turbine and method for manufacturing a wind turbine blade
WO2009052828A3 (en) * 2007-10-24 2009-10-29 Vestas Wind Systems A/S Wind turbine blade, wind turbine and method for manufacturing a wind turbine blade
WO2009143848A2 (en) * 2008-05-30 2009-12-03 Vestas Wind System A/S A wind turbine rotor, a wind turbine and use thereof
WO2009143848A3 (en) * 2008-05-30 2010-07-15 Vestas Wind System A/S A wind turbine rotor, a wind turbine and use thereof
WO2009143850A3 (en) * 2008-05-30 2010-07-15 Vestas Wind Systems A/S A wind turbine rotor, a wind turbine and use thereof
WO2009143850A2 (en) * 2008-05-30 2009-12-03 Vestas Wind Systems A/S A wind turbine rotor, a wind turbine and use thereof
GB2465790A (en) * 2008-11-28 2010-06-02 Vestas Wind Sys As System to measure load on a wind turbine blade
EP2458206A1 (en) * 2010-11-25 2012-05-30 Baumer Innotec AG Device and method for measuring the deformation of a rotor blade under stress and error compensation
DE102011011392B4 (en) * 2011-02-17 2012-10-25 Ssb Wind Systems Gmbh & Co. Kg Optical measuring device for the deformation of a rotor blade of a wind turbine
WO2012110188A1 (en) * 2011-02-17 2012-08-23 Ssb Wind Systems Gmbh & Co.Kg Optical measuring device for the deformation of a rotor blade of a wind turbine
EP3164669A4 (en) * 2014-07-01 2018-02-14 Sikorsky Aircraft Corporation Blade geometry characterization tool
US10288399B2 (en) 2014-07-01 2019-05-14 Sikorsky Aircraft Corporation Blade geometry characterization tool
WO2016087454A3 (en) * 2014-12-04 2016-07-28 fos4X GmbH Method for monitoring a wind power plant and rotor blade comprising an acceleration sensor
CN104568968A (en) * 2015-01-13 2015-04-29 西安交通大学 Method and system applied to in-situ crack detection of wind generator blade

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R207 Utility model specification

Effective date: 20020124

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Effective date: 20050101