Shape sensing using multi-core fiber optic cable and parametric curve solutions
Jason P. Moore,Matthew D. Rogge +1 more
Reads0
Chats0
TLDR
The shape of a multi-core optical fiber is calculated by numerically solving a set of Frenet-Serret equations describing the path of the fiber in three dimensions by exploiting curvature and bending direction functions derived from distributed fiber Bragg grating strain measurements in each core.Abstract:
The shape of a multi-core optical fiber is calculated by numerically solving a set of Frenet-Serret equations describing the path of the fiber in three dimensions. Included in the Frenet-Serret equations are curvature and bending direction functions derived from distributed fiber Bragg grating strain measurements in each core. The method offers advantages over prior art in that it determines complex three-dimensional fiber shape as a continuous parametric solution rather than an integrated series of discrete planar bends. Results and error analysis of the method using a tri-core optical fiber is presented. Maximum error expressed as a percentage of fiber length was found to be 7.2%.read more
Citations
More filters
Journal ArticleDOI
Shape Sensing Techniques for Continuum Robots in Minimally Invasive Surgery: A Survey
Chaoyang Shi,Xiongbiao Luo,Peng Qi,Tianliang Li,Shuang Song,Zoran Najdovski,Toshio Fukuda,Hongliang Ren +7 more
TL;DR: This survey investigates the recent advances in alternative emerging techniques for 3-D shape sensing in this field and focuses on the following categories: fiber-optic-sensor-based, electromagnetic-tracking- based, and intraoperative imaging modality-based shape-reconstruction methods.
Journal ArticleDOI
Fiber Bragg grating sensors for monitoring of physical parameters: a comprehensive review
TL;DR: Fiber Bragg grating has embraced the area of fiber optics since the early days of its discovery, and most fiber optic sensor systems today make use of fiber Bragg-grating technology as discussed by the authors.
Journal ArticleDOI
Distributed shape sensing using Brillouin scattering in multi-core fibers
TL;DR: The analysis and results presented in this paper constitute the first demonstration of distributed bending sensing, providing the cornerstone to further develop it into a fully distributed three-dimensional shape sensor.
Proceedings ArticleDOI
FBG-based Shape Sensing Tubes for Continuum Robots
Seok Chang Ryu,Pierre E. Dupont +1 more
TL;DR: This paper proposes polymer tubes as an alternative substrate for Fiber Bragg gratings-based optical sensors, separating the sensors from the robot structural components while using a minimal amount of the robot's tool lumen and providing the potential of inexpensive fabrication.
Journal ArticleDOI
Multi-Core Optical Fibers With Bragg Gratings as Shape Sensor for Flexible Medical Instruments
TL;DR: In this paper, the shape of a flexible instrument is reconstructed using Frenet-Serret equations in conjunction with the calculated curvature and torsion of the instrument, and the results show that shape sensing for flexible medical instruments is feasible with FBG sensors in multi-core fibers.
References
More filters
Journal ArticleDOI
Two-axis bend measurement with Bragg gratings in multicore optical fiber
Gordon M. H. Flockhart,William N. MacPherson,James S. Barton,Julian D. C. Jones,Lin Zhang,Ian Bennion +5 more
TL;DR: This work describes what is to their knowledge the first use of fiber Bragg gratings written into three separate cores of a multicore fiber for two-axis curvature measurement.
Journal ArticleDOI
Lagrangian Aspects of the Kirchhoff Elastic Rod
Joel Langer,David A. Singer +1 more
TL;DR: Basic facts about (an integrable case of) Kirchhoff elastic rods are described here, which amplify the connection between the variational problem for rods and the soliton equation LIE.
Journal ArticleDOI
Bend measurement using Bragg gratings in multicore fibre
M. J. Gander,William N. MacPherson,Roy McBride,Julian D. C. Jones,Lin Zhang,Ian Bennion,Paul M. Blanchard,James G. Burnett,Alan H. Greenaway +8 more
TL;DR: In this paper, the first measurements of curvature made using Bragg gratings written in separate cores of a multicore optical fiber are described, where the gratings act as independent, but isothermal, strain gauges.
Proceedings ArticleDOI
Use of 3000 Bragg Grating Strain Sensors Distributed on Four Eight-Meter Optical Fibers During Static Load Tests of a Composite Structure
A Childers Brook,E Froggatt Mark,G Allison Sidney,Sr Thomas C. Moore,A Hare David,F Batten Christopher,C Jegley Dawn +6 more
TL;DR: In this paper, the use of a fiber optic system to measure strain at thousands of locations along optical fibers where weakly reflecting Bragg gratings have been photoetched was described.
Proceedings ArticleDOI
High-accuracy fiber-optic shape sensing
Roger G. Duncan,Mark E. Froggatt,Stephen T. Kreger,Ryan J. Seeley,Dawn K. Gifford,Alexander K. Sang,Matthew S. Wolfe +6 more
TL;DR: In this article, the performance characteristics of a monolithic fiber-optic shape sensor array were studied. And the results of a study of the performance of a single-core optical fiber array were described.