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IN2012DN02224A - - Google Patents

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Publication number
IN2012DN02224A
IN2012DN02224A IN2224DEN2012A IN2012DN02224A IN 2012DN02224 A IN2012DN02224 A IN 2012DN02224A IN 2224DEN2012 A IN2224DEN2012 A IN 2224DEN2012A IN 2012DN02224 A IN2012DN02224 A IN 2012DN02224A
Authority
IN
India
Prior art keywords
core fiber
optical length
point
detected
detected changes
Prior art date
Application number
Inventor
Mark E Froggatt
Justin W Klein
Dawn K Gifford
Stephen Tod Kreger
Original Assignee
Luna Innovations 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 Luna Innovations Inc filed Critical Luna Innovations Inc
Publication of IN2012DN02224A publication Critical patent/IN2012DN02224A/en

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
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • 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
    • 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
    • G01B11/168—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by means of polarisation
    • 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
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
    • G01L1/246—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using integrated gratings, e.g. Bragg gratings
    • 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
    • G01M11/02—Testing optical properties
    • G01M11/0242—Testing optical properties by measuring geometrical properties or aberrations
    • G01M11/025—Testing optical properties by measuring geometrical properties or aberrations by determining the shape of the object to be tested
    • 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
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • 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
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3172—Reflectometers detecting the back-scattered light in the frequency-domain, e.g. OFDR, FMCW, heterodyne detection
    • 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
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3181—Reflectometers dealing with polarisation
    • 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
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
    • G01M11/331—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face by using interferometer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02042—Multicore optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

An accurate measurement method and apparatus are disclosed for shape sensing with a multi-core fiber. A change in optical length is detected in ones of the cores in the multi-core fiber up to a point on the multi-core fiber. A location and/or a pointing direction are/is determined at the point on the multi-core fiber based on the detected changes in optical length. The accuracy of the determination is better than 0.5% of the optical length of the multi-core fiber up to the point on the multi-core fiber. In a preferred example embodiment, the determining includes determining a shape of at least a portion of the multi-core fiber based on the detected changes in optical length.
IN2224DEN2012 2009-09-18 2010-09-16 IN2012DN02224A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US24374609P 2009-09-18 2009-09-18
US25557509P 2009-10-28 2009-10-28
US35034310P 2010-06-01 2010-06-01
US12/874,901 US8773650B2 (en) 2009-09-18 2010-09-02 Optical position and/or shape sensing
PCT/US2010/002517 WO2011034584A2 (en) 2009-09-18 2010-09-16 Optical position and/or shape sensing

Publications (1)

Publication Number Publication Date
IN2012DN02224A true IN2012DN02224A (en) 2015-08-21

Family

ID=43759221

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2224DEN2012 IN2012DN02224A (en) 2009-09-18 2010-09-16

Country Status (8)

Country Link
US (9) US8773650B2 (en)
EP (3) EP2478331B1 (en)
JP (1) JP5506935B2 (en)
CN (3) CN102695938B (en)
BR (1) BR112012008347B1 (en)
IN (1) IN2012DN02224A (en)
RU (1) RU2541139C2 (en)
WO (1) WO2011034584A2 (en)

Families Citing this family (139)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8773650B2 (en) 2009-09-18 2014-07-08 Intuitive Surgical Operations, Inc. Optical position and/or shape sensing
US8265431B2 (en) * 2009-11-06 2012-09-11 Baker Hughes Incorporated Rotated single or multicore optical fiber
JP2011237782A (en) * 2010-04-13 2011-11-24 Sumitomo Electric Ind Ltd Optical branch element and optical communication system including the same
WO2011153018A2 (en) 2010-06-01 2011-12-08 Luna Innovations Incorporated Interferometric measurement with crosstalk suppression
WO2012101562A1 (en) * 2011-01-28 2012-08-02 Koninklijke Philips Electronics N.V. Fiber optic sensor for determining 3d shape
US20140088413A1 (en) 2011-06-10 2014-03-27 Koninklijke Philips N.V. Optical fiber sensing for determining real time changes in applicator geometry for interventional therapy
EP2721434B1 (en) * 2011-06-14 2021-05-05 Intuitive Surgical Operations, Inc. Co-registration of cores in multicore optical fiber sensing systems
JP5741313B2 (en) * 2011-08-12 2015-07-01 株式会社大林組 Mode analysis method, mode analysis system, displacement measurement method, and displacement measurement system
JP6223977B2 (en) * 2011-09-02 2017-11-01 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Medical device insertion and removal information using distributed optical fiber temperature sensing
JP2013080126A (en) * 2011-10-04 2013-05-02 Sumitomo Electric Ind Ltd Polarization-maintaining multi-core optical fiber
US20130094798A1 (en) * 2011-10-12 2013-04-18 Baker Hughes Incorporated Monitoring Structural Shape or Deformations with Helical-Core Optical Fiber
WO2013085833A1 (en) 2011-12-05 2013-06-13 Luna Innovations Incorporated Method and apparatus for motion compensation in interferometric sensing systems
RU2622479C2 (en) * 2012-03-16 2017-06-15 Конинклейке Филипс Н.В. Optical measurement system for determining position and/or form of associated object
WO2013169098A1 (en) * 2012-05-07 2013-11-14 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Optical sensor interrogation system a method of manufacturing the optical sensor interrogation system
US9429696B2 (en) 2012-06-25 2016-08-30 Intuitive Surgical Operations, Inc. Systems and methods for reducing measurement error in optical fiber shape sensors
DE102012106806B4 (en) * 2012-07-26 2022-07-28 J-Fiber Gmbh Sensor fiber for temperature, strain and/or torsion detection in the form of a multi-core optical waveguide with a fiber Bragg grating structure
US8746076B2 (en) 2012-08-22 2014-06-10 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Shape sensing using a multi-core optical fiber having an arbitrary initial shape in the presence of extrinsic forces
WO2014053934A1 (en) * 2012-10-01 2014-04-10 Koninklijke Philips N.V. System and method for registering shape sensing with imaging using an optimal plane
EP2720388A1 (en) 2012-10-15 2014-04-16 Koninklijke Philips N.V. An optical frequency domain reflectometry (OFDR) system
EP2908725A1 (en) 2012-10-16 2015-08-26 Koninklijke Philips N.V. Pulmonary plethysmography based on optical shape sensing
WO2014072845A1 (en) 2012-11-09 2014-05-15 Koninklijke Philips N.V. Optical frequency domain reflectometry system with multiple fibers per detection chain
RU2551802C2 (en) * 2012-12-18 2015-05-27 Владимир Васильевич Гришачев Device for protecting optical network from unauthorised probing by optical reflectometry methods
WO2014105911A1 (en) 2012-12-24 2014-07-03 Luna Innovations Incorporated Dispersion correction in optical frequency-domain reflectometry
CN103901532A (en) * 2012-12-26 2014-07-02 西安金和光学科技有限公司 Multi-core optical fiber, sensing device with same and operating method of sensing device
WO2014117780A1 (en) 2013-02-01 2014-08-07 National Oilwell Varco Denmark I/S An unbonded flexible armored riser pipe
RU2015138916A (en) 2013-02-14 2017-03-20 Конинклейке Филипс Н.В. INTERVENTIONAL SYSTEM
WO2014136020A2 (en) * 2013-03-07 2014-09-12 Koninklijke Philips N.V. Adaptive up-sampling for accurate real-time interpolations
EP3008425B1 (en) 2013-06-13 2018-08-08 Intuitive Surgical Operations, Inc. An overlapped chirped fiber bragg grating sensing fiber and methods and apparatus for parameter measurement using same
EP3011490B1 (en) * 2013-06-18 2018-09-26 Intuitive Surgical Operations, Inc. Methods and apparatus segmented calibration of a sensing optical fiber
US9464883B2 (en) 2013-06-23 2016-10-11 Eric Swanson Integrated optical coherence tomography systems and methods
US9683928B2 (en) * 2013-06-23 2017-06-20 Eric Swanson Integrated optical system and components utilizing tunable optical sources and coherent detection and phased array for imaging, ranging, sensing, communications and other applications
CN114343608B (en) * 2013-07-29 2024-07-26 直观外科手术操作公司 Shape sensor system with redundant sensing
US11395702B2 (en) 2013-09-06 2022-07-26 Koninklijke Philips N.V. Navigation system
US9216004B2 (en) 2013-09-12 2015-12-22 Jesse Talant Adam and ease mammography device
WO2015044930A1 (en) * 2013-09-30 2015-04-02 Koninklijke Philips N.V. Device specific outlier rejection for stable optical shape sensing
CN103604382A (en) * 2013-11-01 2014-02-26 河海大学 Bellows-distributed optical fiber measuring sensor
US9304018B2 (en) * 2013-11-05 2016-04-05 Intuitive Surgical Operations, Inc. Body shape, position, and posture recognition suit with multi-core optical shape sensing fiber
WO2015106621A1 (en) * 2014-01-17 2015-07-23 Harbin Institute Of Technology Method and equipment based on multi-core fiber bragg grating probe for measuring structures of a micro part
US9494416B2 (en) * 2014-02-06 2016-11-15 Baker Hughes Incorporated Fiber optic shape sensing system using anchoring points
US11067387B2 (en) * 2014-02-28 2021-07-20 Koninklijke Philips N.V. Adaptive instrument kinematic model optimization for optical shape sensed instruments
JP2015181643A (en) * 2014-03-24 2015-10-22 オリンパス株式会社 Curved shape estimation system, tubular insert system, and method for estimating curved shape of curved member
US9681107B2 (en) 2014-05-22 2017-06-13 Siemens Energy, Inc. Flexible tether position tracking camera inspection system for visual inspection of off line industrial gas turbines and other power generation machinery
US9359910B2 (en) 2014-05-29 2016-06-07 Siemens Energy, Inc. Method and apparatus for measuring operational gas turbine engine housing displacement and temperature by a distributed fiber optic sensing system utilizing optical frequency domain reflectometry
US20160018245A1 (en) * 2014-07-17 2016-01-21 Schlumberger Technology Corporation Measurement Using A Multi-Core Optical Fiber
WO2016029110A1 (en) 2014-08-22 2016-02-25 Luna Innovations Incorporated Method and apparatus for multiple localized interferometric measurements
EP3218747B1 (en) 2014-11-11 2020-10-14 Luna Innovations Incorporated Optical fiber and method and apparatus for accurate fiber optic sensing under multiple stimuli
US10132995B2 (en) * 2014-12-09 2018-11-20 General Electric Company Structures monitoring system and method
EP3230755B1 (en) * 2014-12-11 2021-03-17 Koninklijke Philips N.V. Cable loop detection mechanism for improved mri safety
CN107003473B (en) * 2014-12-15 2020-09-11 直观外科手术操作公司 Different cores in a multicore fiber for strain and temperature separation
US10405908B2 (en) 2014-12-18 2019-09-10 Warsaw Orthopedic, Inc. Apparatus and method for forming support device for effecting orthopedic stabilization
US10363101B2 (en) * 2015-01-08 2019-07-30 Koninklijke Philips N.V. Optical shape sensing system, medical apparatus and method for optical shape sensing
KR102579618B1 (en) 2015-03-27 2023-09-18 인튜어티브 서지컬 오퍼레이션즈 인코포레이티드 Interferometric alignment of optical multicore fibers to be connected
JP6817209B2 (en) * 2015-04-02 2021-01-20 インテュイティブ サージカル オペレーションズ， インコーポレイテッド Alignment of measured interference data of optical fiber with reference interference data of optical fiber
EP3289954A1 (en) * 2015-05-01 2018-03-07 Olympus Corporation Flexure information deriving apparatus, endoscope system provided with flexure information deriving apparatus, flexure information deriving method, and program for deriving flexure information
US10378883B2 (en) 2015-05-15 2019-08-13 Intuitive Surgical Operations, Inc. Force sensing in a distal region of an instrument including single-core or multi-core optical fiber
US10480936B2 (en) * 2015-06-15 2019-11-19 Koninklijke Philips N.V. Optical shape sensing system and method for sensing a position and/or shape of a medical device using backscatter reflectometry
WO2016202857A1 (en) 2015-06-16 2016-12-22 Karlsruher Institut für Technologie Device and method for detecting a deformation of a flexible three-dimensional structure
PL235392B1 (en) 2015-06-24 2020-07-13 Bednarski Lukasz Method for continuous measurement of the building objects relocation profile and a sensor for execution of this method
US10390884B2 (en) 2015-06-30 2019-08-27 DePuy Synthes Products, Inc. Methods and templates for shaping patient-specific anatomical-fixation implants
JP6461343B2 (en) * 2015-07-10 2019-01-30 オリンパス株式会社 Shape detection device
US9726573B2 (en) * 2015-08-19 2017-08-08 Anritsu Corporation Optical frequency domain reflectometry, optical frequency domain reflectometer, and device for measuring position or shape using the same
US10302463B2 (en) * 2015-11-19 2019-05-28 Corning Incorporated Distributed fiber sensors and systems employing multicore optical fibers
US10480926B2 (en) 2015-12-14 2019-11-19 Intuitive Surgical Operations, Inc. Apparatus and method for generating 3-D data for an anatomical target using optical fiber shape sensing
EP3420306B1 (en) * 2016-02-24 2019-06-19 Koninklijke Philips N.V. Method and system for correcting for nonlinear twist response in optical shape sensing with spun multicore fibers
US11079217B2 (en) 2016-04-20 2021-08-03 Koninklijke Philips N.V. Methods and systems for optically connecting an optical fiber sensor to an optical shape sensing console
KR20240035639A (en) 2016-05-11 2024-03-15 인튜어티브 서지컬 오퍼레이션즈 인코포레이티드 Redundant core in multicore optical fiber for safety
WO2017213874A1 (en) 2016-06-09 2017-12-14 Intuitive Surgical Operations, Inc. Methods and apparatus for calibration for a fiber optic shape sensor
KR102408644B1 (en) 2016-06-29 2022-06-14 인튜어티브 서지컬 오퍼레이션즈 인코포레이티드 Method and apparatus for monitoring and optimizing OFDR interrogators
EP3482154B1 (en) 2016-07-08 2024-03-06 Intuitive Surgical Operations, Inc. Calculation of redundant bend in multi-core fiber for safety
US10145681B2 (en) * 2016-07-19 2018-12-04 Corning Incorporated Brillouin-based distributed bend fiber sensor and method for using same
EP4465115A3 (en) 2016-09-27 2025-02-12 Intuitive Surgical Operations, Inc. Micro optic assemblies and optical interrogation systems
US10823627B2 (en) 2016-10-21 2020-11-03 Intuitive Surgical Operations, Inc. Shape sensing with multi-core fiber sensor
US11016316B2 (en) 2016-11-10 2021-05-25 Intuitive Surgical Operations, Inc. Polarization control with low polarization-mode dispersion
WO2018125713A1 (en) 2016-12-29 2018-07-05 Intuitive Surgical Operations, Inc. Methods and apparatus for determining shape parameter(s) using a sensing fiber having a single core with multiple light propagating modes
JP6360929B1 (en) 2017-02-15 2018-07-18 株式会社フジクラ Optical fiber sensor
US10670389B2 (en) * 2017-02-23 2020-06-02 General Photonics Corporation Sensitive optical fiber shape sensing based on shape-related optical polarization evolution
CN106949850B (en) * 2017-03-29 2019-05-24 哈尔滨工业大学 A high-sensitivity and high-precision optical fiber shape sensing measurement method and system
EP3449857A1 (en) 2017-08-29 2019-03-06 Koninklijke Philips N.V. Ablation catheter, catheter arrangement and system for providing ablative treatment
US10612911B1 (en) 2017-09-07 2020-04-07 United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Fiber optic system for monitoring displacement of a structure using quaternion kinematic shape sensing
JP6939360B2 (en) 2017-10-02 2021-09-22 オムロン株式会社 Confocal measuring device
CN117270098A (en) 2017-10-02 2023-12-22 直观外科手术操作公司 Optical fiber with micro-gratings and methods and apparatus for making and using the same
CN108036806A (en) * 2017-12-28 2018-05-15 北京信息科技大学 A kind of angular displacement based on multi-core optical fiber and angular velocity measurement system
US10698153B2 (en) 2018-01-19 2020-06-30 Intuitive Surgical Operations, Inc. Index-matched grating inscription through fiber coating
GB2571575B (en) 2018-03-02 2022-05-04 Univ Cranfield An optical shape sensing method and system
CN108469229B (en) * 2018-03-06 2020-09-08 重庆大学 Monitoring device and monitoring method for determining slope sliding direction based on combination of multiple optical fibers
CN110243301A (en) * 2018-03-08 2019-09-17 桂林电子科技大学 A core-by-core scanning multi-core optical fiber shape sensor based on dynamic BOTDA
CN110243305B (en) * 2018-03-08 2020-11-06 桂林电子科技大学 Multi-core circulating tandem type optical fiber shape sensor based on dynamic BOTDA
CN108775980A (en) * 2018-03-16 2018-11-09 上海交通大学 Rail safety detection device and its detection method based on multifiber cable structure
US11857268B2 (en) * 2018-05-02 2024-01-02 Koninklijke Philips N.V. Optical shape sensing device with integrated force sensing region and tip integration
WO2019230713A1 (en) * 2018-06-01 2019-12-05 古河電気工業株式会社 Detection system, catheter device, and laser cauterizing device
WO2020002176A2 (en) 2018-06-30 2020-01-02 Koninklijke Philips N.V. Registering optical shape sensing device with three-dimensional representation of region of interest
WO2020017565A1 (en) 2018-07-17 2020-01-23 株式会社フジクラ Multi-core optical fiber and method of manufacturing multi-core optical fiber
JP7401527B2 (en) 2018-08-28 2023-12-19 コーニンクレッカ フィリップス エヌ ヴェ Integrated fiber for optical shape sensing and spectral tissue sensing
EP3627096A1 (en) * 2018-09-20 2020-03-25 Koninklijke Philips N.V. Optical shape sensing system and method
EP3627095A1 (en) * 2018-09-20 2020-03-25 Koninklijke Philips N.V. Optical fiber sensor for shape sensing, optical shape sensing device, system and method
EP3650806A1 (en) 2018-11-08 2020-05-13 Koninklijke Philips N.V. Optical fiber sensor, optical system and method of optically interrogating an optical fiber sensor
EP3891463A4 (en) 2018-12-04 2022-12-07 Ofs Fitel Llc HIGH RESOLUTION DISTRIBUTED SENSOR USING SHIFT CORE OPTICAL FIBER
EP3663707A1 (en) 2018-12-07 2020-06-10 Koninklijke Philips N.V. Methods and systems for sensing shape of an optical fiber sensor
US10921120B2 (en) * 2019-02-20 2021-02-16 Toyota Motor Engineering & Manufacturing North America, Inc. Bending and kinking detection apparatus and method
EP3928071A4 (en) 2019-02-20 2022-11-16 Humanetics Innovative Solutions, Inc. Optical fiber system having helical core structure for detecting forces during a collision test
EP3928070A4 (en) 2019-02-20 2022-11-23 Humanetics Innovative Solutions, Inc. SHAPE DETECTION SYSTEM AND METHOD FOR ANTHROPOMORPHIC TEST DEVICES
US10663290B1 (en) 2019-03-08 2020-05-26 Sensuron Llc Dynamic fiber optic shape sensing
JP7247446B2 (en) * 2019-03-13 2023-03-29 国立大学法人東京農工大学 Multi-core optical fiber sensing system
CN109827544B (en) * 2019-04-11 2024-02-02 江苏乾程工程技术有限公司 Bridge pier differential settlement monitoring device of simply supported girder bridge and calculation detection method
WO2021001710A1 (en) 2019-07-02 2021-01-07 Technology Innovation Momentum Fund (Israel) Limited Partnership Interrogation of arrays of equally spaced weak reflectors in optical fibers
CN110470635A (en) * 2019-08-01 2019-11-19 武汉理工大学 A kind of hydrogen gas sensor based on multicore coupling optical fiber
US12399357B2 (en) 2020-06-03 2025-08-26 Intuitive Surgical Operations, Inc. Directing light into an optical fiber
WO2021246497A1 (en) * 2020-06-05 2021-12-09 日本電信電話株式会社 Shape measurement system and shape measurement method
CN111609807B (en) * 2020-06-22 2022-03-01 南京大学 Dynamic deformation reconstruction method of transmission line based on OPGW multi-core stress sensing
CN111856677A (en) * 2020-08-28 2020-10-30 北交智汇千路(北京)科技有限公司 A four-core optical cable that can measure bending radius and bending direction at the same time
EP3971519A1 (en) 2020-09-16 2022-03-23 Koninklijke Philips N.V. Method of and system for representing shape of an optical fiber sensor
US12467805B2 (en) * 2020-11-05 2025-11-11 Ntt, Inc. Apparatus and methods for calculating the behavior of linear structures
EP3995076A1 (en) 2020-11-06 2022-05-11 Koninklijke Philips N.V. Method of re-connecting optical fibers and system
US20240060770A1 (en) * 2020-12-24 2024-02-22 Katholieke Universiteit Leuven Method for shape sensing an optical fiber
US20240151517A1 (en) * 2021-05-24 2024-05-09 Ramot At Tel-Aviv University Ltd. Shape Sensing of Multimode Optical Fibers
US20240377281A1 (en) * 2021-10-08 2024-11-14 Nippon Telegraph And Telephone Corporation Equipment and method for measuring crosstalk between cores of an optical fiber having multiple cores
US20250155634A1 (en) 2022-02-21 2025-05-15 Fujikura Ltd. Optical fiber, optical device, and method for manufacturing optical device
EP4282366A1 (en) 2022-05-23 2023-11-29 Koninklijke Philips N.V. Shape registration of a shape-sensing enabled device to an imaging system
CN115278088B (en) * 2022-08-19 2024-11-26 维沃移动通信有限公司 Laser sensor, electronic device and focus control method
CN121002532A (en) 2023-02-01 2025-11-21 直观外科手术操作公司 Extracting the elongation device from intraoperative images
US12292353B2 (en) 2023-02-08 2025-05-06 The Shape Sensing Company Calculating distributed twist of a multi-fiber 3D shape sensor bundle (MFB) using optical frequency domain reflectometry (OFDR) phase interrogation data
CN120731055A (en) 2023-02-23 2025-09-30 直观外科手术操作公司 Tool-based control of flexible extension device
WO2024186659A1 (en) 2023-03-06 2024-09-12 Intuitive Surgical Operations, Inc. Generation of high resolution medical images using a machine learning model
WO2024206262A1 (en) 2023-03-27 2024-10-03 Intuitive Surgical Operations, Inc. Insertable tool identification for flexible elongate devices
CN121152591A (en) 2023-05-03 2025-12-16 直观外科手术操作公司 Traction wire slack detection and adjustment for flexible extension devices
EP4485025A1 (en) 2023-06-30 2025-01-01 Koninklijke Philips N.V. Connector assembly, connecting system and method for aligning cables
WO2025019569A1 (en) 2023-07-18 2025-01-23 Intuitive Surgical Operations, Inc. Intra-operative imaging to robotic-assisted navigation
WO2025030175A1 (en) 2023-08-03 2025-02-06 Intuitive Surgical Operations, Inc. Flexible elongate device articulation control based on tool insertion distance
WO2025042718A1 (en) 2023-08-18 2025-02-27 Intuitive Surgical Operations, Inc. Atlas-based planning and navigation for medical procedures
WO2025049727A1 (en) 2023-08-31 2025-03-06 Intuitive Surgical Operations, Inc. Conditional brake engagement to inhibit back-driving of system components
WO2025054381A1 (en) 2023-09-08 2025-03-13 Intuitive Surgical Operations, Inc. Style transfer for intraoperative imaging
WO2025054377A1 (en) 2023-09-08 2025-03-13 Intuitive Surgical Operations, Inc. In-painting and target update for intraoperative imaging
WO2025062512A1 (en) * 2023-09-20 2025-03-27 日本電信電話株式会社 Method for measuring torsion in coupled multi-core fibers
WO2025064464A1 (en) 2023-09-21 2025-03-27 Intuitive Surgical Operations, Inc. Medical tool with signal window and methods of use
US12085387B1 (en) 2023-09-23 2024-09-10 Hamamatsu Photonics K.K. Optical coherence tomography system for subsurface inspection
WO2025076034A1 (en) 2023-10-02 2025-04-10 Intuitive Surgical Operations, Inc. Restoring the state of systems after a system restart
WO2025122446A1 (en) 2023-12-04 2025-06-12 Intuitive Surgical Operations, Inc. Fluidics assemblies and related medical systems
WO2025160225A1 (en) 2024-01-23 2025-07-31 Intuitive Surgical Operations, Inc. Tool insertion position sensing
WO2025171214A2 (en) 2024-02-09 2025-08-14 Intuitive Surgical Operations, Inc. Directional filter and/or translational constraints for coordinate registration

Family Cites Families (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692068A (en) 1970-09-23 1972-09-19 Interbrev Sa A method of and a loom for producing a tape having a list with laterally protruding loops
DE3016104A1 (en) * 1980-04-25 1981-10-29 Siemens AG, 1000 Berlin und 8000 München SENSOR DEVICE WITH A LIBRARY FIBER OPTICAL ELEMENT
US4697876A (en) * 1983-02-25 1987-10-06 Andrew Corporation Fiber-optic rotation sensor
US4761073A (en) 1984-08-13 1988-08-02 United Technologies Corporation Distributed, spatially resolving optical fiber strain gauge
US4697926A (en) 1985-02-08 1987-10-06 The Board Of Trustees Of The Leland Stanford Junior University Coherent distributed sensor and method using short coherence length sources
US4748686A (en) 1986-10-15 1988-05-31 United Technologies Corporation Coherence multiplexed optical position transducer
JPH0293503A (en) 1988-09-30 1990-04-04 Anritsu Corp Non-reflecting terminal device of optical system
GB2224566A (en) * 1988-06-30 1990-05-09 British Aerospace An optical sensor for determining changes in a dimension and/or a temperature of an object
DE3921440A1 (en) 1989-06-30 1991-01-03 Standard Elektrik Lorenz Ag Non-reflective termination of monomode glass fibre - comprises waveguide made of glass tube and adhesive filling of high refractive index
US5118931A (en) * 1990-09-07 1992-06-02 Mcdonnell Douglas Corporation Fiber optic microbending sensor arrays including microbend sensors sensitive over different bands of wavelengths of light
US5633494A (en) * 1991-07-31 1997-05-27 Danisch; Lee Fiber optic bending and positioning sensor with selected curved light emission surfaces
US5263103A (en) 1992-11-16 1993-11-16 At&T Bell Laboratories Apparatus comprising a low reflection optical fiber termination
JP3159861B2 (en) 1994-02-11 2001-04-23 株式会社フジクラ Non-reflective termination of optical fiber
AT401065B (en) 1994-10-20 1996-06-25 Starlinger & Co Gmbh DEVICE FOR MONITORING THE WOTS ON A ROTARY WEAVING MACHINE
US5493113A (en) * 1994-11-29 1996-02-20 United Technologies Corporation Highly sensitive optical fiber cavity coating removal detection
US5627637A (en) * 1995-02-24 1997-05-06 Kapteyn; Kelvin L. Fully distributed optical fiber strain sensor
US5698848A (en) * 1995-06-07 1997-12-16 Mcdonnell Douglas Corporation Fiber optic sensing systems and methods including contiguous optical cavities
US5563967A (en) * 1995-06-07 1996-10-08 Mcdonnell Douglas Corporation Fiber optic sensor having a multicore optical fiber and an associated sensing method
JPH08334649A (en) 1995-06-08 1996-12-17 Nippon Telegr & Teleph Corp <Ntt> Optical terminator
US5748312A (en) * 1995-09-19 1998-05-05 United States Of American As Represented By The Secretary Of The Navy Sensing apparatus and method for detecting strain between fiber bragg grating sensors inscribed into an optical fiber
SE9503873L (en) * 1995-11-02 1997-04-21 Reflex Instr Ab Apparatus for sensing elastic deformation of a tool shaft in a machine tool
US5870511A (en) 1997-01-27 1999-02-09 Sentec Corporation Fiber optic temperature sensor
US5798521A (en) * 1996-02-27 1998-08-25 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Apparatus and method for measuring strain in bragg gratings
US5809198A (en) 1997-05-29 1998-09-15 Gould Electronics Inc. Low reflection optical fiber termination device and method using same
GB9713018D0 (en) 1997-06-20 1997-08-27 Secr Defence Optical fibre bend sensor
US5987197A (en) 1997-11-07 1999-11-16 Cidra Corporation Array topologies for implementing serial fiber Bragg grating interferometer arrays
US6301420B1 (en) 1998-05-01 2001-10-09 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Multicore optical fibre
US6360039B1 (en) 1998-07-17 2002-03-19 Lightpath Technologies, Inc. Fabrication of collimators employing optical fibers fusion-spliced to optical elements of substantially larger cross-sectional areas
US6289740B1 (en) * 1998-10-26 2001-09-18 The United States Of America As Represented By The Secretary Of The Navy Integrated fiber optic strain sensing using low-coherence wavelength-encoded addressing
US6545760B1 (en) 1999-03-25 2003-04-08 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Apparatus and method for measuring strain in optical fibers using rayleigh scatter
JP2000329530A (en) * 1999-05-24 2000-11-30 Shimizu Corp Displacement sensor of displacement measuring device and method of installing the same
WO2001033165A1 (en) * 1999-10-29 2001-05-10 Advanced Sensor Technology, Llc Optical fiber navigation system
JP2001235637A (en) 2000-02-23 2001-08-31 Sumitomo Electric Ind Ltd Non-reflective termination of optical fiber
US6668105B2 (en) * 2000-07-27 2003-12-23 Systems Planning & Analysis, Inc. Fiber optic strain sensor
AU2002217762A1 (en) 2000-10-18 2002-04-29 Amherst Holding Co. Low reflection optical fiber terminators
US6856400B1 (en) 2000-12-14 2005-02-15 Luna Technologies Apparatus and method for the complete characterization of optical devices including loss, birefringence and dispersion effects
US6563107B2 (en) * 2001-01-11 2003-05-13 Canadian Space Agency Topological and motion measuring tool
JP4660805B2 (en) * 2001-05-11 2011-03-30 清水建設株式会社 Displacement measurement method using optical fiber sensor
US6999641B2 (en) * 2002-05-03 2006-02-14 Jerry Gene Williams Measurement of large strains in ropes using plastic optical fibers
AU2003256461A1 (en) 2002-07-09 2004-01-23 Luna Technologies Polarization diversity detection without a polarizing beam splitter
US7099552B1 (en) 2003-02-18 2006-08-29 Kilolambda Technologies Ltd. Optical terminator
JP2004251779A (en) * 2003-02-20 2004-09-09 Fuji Photo Optical Co Ltd Three-dimensional shape detector for long flexible member
US6888623B2 (en) 2003-02-26 2005-05-03 Dynamic Technology, Inc. Fiber optic sensor for precision 3-D position measurement
WO2004090507A2 (en) 2003-04-02 2004-10-21 Luna Technologies, Inc. Apparatus and method for correcting errors generated by a laser with non-ideal tuning characteristics
US7027699B2 (en) 2003-05-21 2006-04-11 The Hong Kong Polytechnic University Optical fiber and optical fiber sensors
US7019837B2 (en) 2003-08-27 2006-03-28 Weatherford/Lamb, Inc Method and apparatus for reducing crosstalk interference in an inline Fabry-Perot sensor array
US20050089326A1 (en) 2003-10-03 2005-04-28 Zvi Regev Cancellation of transmitted signal crosstalk in optical receivers of diplexer-based fiber optic transceivers
US7440087B2 (en) 2004-02-24 2008-10-21 Luna Innovations Incorporated Identifying optical fiber segments and determining characteristics of an optical device under test based on fiber segment scatter pattern data
EP1745300B1 (en) 2004-05-13 2017-05-31 ABB Research Ltd. Fiber optical sensor coil and current- or magnetic field sensor
US7781724B2 (en) * 2004-07-16 2010-08-24 Luna Innovations Incorporated Fiber optic position and shape sensing device and method relating thereto
US7772541B2 (en) * 2004-07-16 2010-08-10 Luna Innnovations Incorporated Fiber optic position and/or shape sensing based on rayleigh scatter
US20060013523A1 (en) * 2004-07-16 2006-01-19 Luna Innovations Incorporated Fiber optic position and shape sensing device and method relating thereto
US20060061770A1 (en) 2004-09-22 2006-03-23 The Regents Of The University Of California Heterodyning time resolution boosting method and system
EP2397813B1 (en) * 2004-12-14 2013-07-24 Luna Innovations Incorporated Compensating for time varying phase changes in interferometric measurements
US8182433B2 (en) * 2005-03-04 2012-05-22 Endosense Sa Medical apparatus system having optical fiber load sensing capability
EP1869511B1 (en) 2005-03-10 2012-08-01 Luna Innovations, Inc. Calculation of birefringence in a waveguide based on rayleigh scatter
JP2006275654A (en) 2005-03-28 2006-10-12 Sony Corp Displacement detection device, displacement measurement device, and fixed point detection device
JP2006284193A (en) * 2005-03-31 2006-10-19 Alps Electric Co Ltd Three-dimensional shape measuring apparatus and three-dimensional shape measuring method
CN100350220C (en) * 2005-11-25 2007-11-21 浙江大学 Double parameter measuring method basing on long period optical-fiber grating to sen sor
US7930065B2 (en) 2005-12-30 2011-04-19 Intuitive Surgical Operations, Inc. Robotic surgery system including position sensors using fiber bragg gratings
US20070201793A1 (en) * 2006-02-17 2007-08-30 Charles Askins Multi-core optical fiber and method of making and using same
US8989528B2 (en) 2006-02-22 2015-03-24 Hansen Medical, Inc. Optical fiber grating sensors and methods of manufacture
JP5631585B2 (en) 2006-03-22 2014-11-26 コーニンクレッカ フィリップス エレクトロニクス エヌ．ヴィ． Optical fiber equipment sensing system
US7664347B2 (en) 2006-06-07 2010-02-16 Baker Hughes Incorporated Multi-core optical fiber sensor
US7317849B1 (en) * 2006-06-08 2008-01-08 Institut National D'optique Optical fiber sensor and method
US7538883B2 (en) 2006-06-16 2009-05-26 Luna Innovations Incorporated Distributed strain and temperature discrimination in polarization maintaining fiber
US7324714B1 (en) 2007-04-11 2008-01-29 The United States Of America As Represented By The Secretary Of The Navy Multicore fiber curvature sensor
WO2008131303A2 (en) 2007-04-20 2008-10-30 Hansen Medical, Inc. Optical fiber shape sensing systems
EP2626027B1 (en) * 2007-08-14 2020-04-29 Koninklijke Philips N.V. Robotic instrument systems utilizing optical fiber sensors
US7815376B2 (en) 2008-06-30 2010-10-19 Intuitive Surgical Operations, Inc. Fixture for shape-sensing optical fiber in a kinematic chain
US7720322B2 (en) 2008-06-30 2010-05-18 Intuitive Surgical, Inc. Fiber optic shape sensor
WO2010054262A1 (en) * 2008-11-07 2010-05-14 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Measurement of fiber twist by polarization tracking
GB0823306D0 (en) * 2008-12-22 2009-01-28 Rogers Alan Frequency-mapped distributed presure measurement
US7813599B2 (en) 2009-02-23 2010-10-12 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method and apparatus for shape and end position determination using an optical fiber
JP5743380B2 (en) 2009-03-06 2015-07-01 キヤノン株式会社 Optical tomographic imaging apparatus and optical tomographic imaging method
JP5645445B2 (en) 2009-05-22 2014-12-24 キヤノン株式会社 Imaging apparatus and imaging method
US8773650B2 (en) 2009-09-18 2014-07-08 Intuitive Surgical Operations, Inc. Optical position and/or shape sensing
US8265431B2 (en) * 2009-11-06 2012-09-11 Baker Hughes Incorporated Rotated single or multicore optical fiber
US8183520B2 (en) 2009-11-13 2012-05-22 Intuitive Surgical Operations, Inc. Optical fiber shape sensor calibration
JP5654611B2 (en) * 2009-12-02 2015-01-14 オーエフエス ファイテル，エルエルシー Crosstalk operation technology in multi-core fiber
US9285246B2 (en) 2010-02-12 2016-03-15 Intuitive Surgical Operations, Inc. Method and system for absolute three-dimensional measurements using a twist-insensitive shape sensor
US8714026B2 (en) * 2010-04-09 2014-05-06 Intuitive Surgical Operations, Inc. Strain sensing with optical fiber rosettes
US8400620B2 (en) 2010-06-01 2013-03-19 Luna Innovations Incorporated Registration of an extended reference for parameter measurement in an optical sensing system
WO2011153018A2 (en) 2010-06-01 2011-12-08 Luna Innovations Incorporated Interferometric measurement with crosstalk suppression
US8842963B2 (en) 2010-09-01 2014-09-23 Intuitive Surgical Operations, Inc. Reducing reflection at termination of optical fiber in a small volume
US8531655B2 (en) 2010-09-17 2013-09-10 Luna Innovations Incorporated Compensating for non-ideal multi-core optical fiber structure
RU2622479C2 (en) * 2012-03-16 2017-06-15 Конинклейке Филипс Н.В. Optical measurement system for determining position and/or form of associated object
US8970845B1 (en) * 2012-05-31 2015-03-03 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration In-situ three-dimensional shape rendering from strain values obtained through optical fiber sensors
US8746076B2 (en) * 2012-08-22 2014-06-10 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Shape sensing using a multi-core optical fiber having an arbitrary initial shape in the presence of extrinsic forces
EP3011490B1 (en) * 2013-06-18 2018-09-26 Intuitive Surgical Operations, Inc. Methods and apparatus segmented calibration of a sensing optical fiber
US20160018245A1 (en) * 2014-07-17 2016-01-21 Schlumberger Technology Corporation Measurement Using A Multi-Core Optical Fiber
EP3420306B1 (en) * 2016-02-24 2019-06-19 Koninklijke Philips N.V. Method and system for correcting for nonlinear twist response in optical shape sensing with spun multicore fibers
US11079217B2 (en) * 2016-04-20 2021-08-03 Koninklijke Philips N.V. Methods and systems for optically connecting an optical fiber sensor to an optical shape sensing console
KR20240035639A (en) * 2016-05-11 2024-03-15 인튜어티브 서지컬 오퍼레이션즈 인코포레이티드 Redundant core in multicore optical fiber for safety
WO2017213874A1 (en) * 2016-06-09 2017-12-14 Intuitive Surgical Operations, Inc. Methods and apparatus for calibration for a fiber optic shape sensor
CN117270098A (en) * 2017-10-02 2023-12-22 直观外科手术操作公司 Optical fiber with micro-gratings and methods and apparatus for making and using the same

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