3D shape sensing measurements using distributed fiber Bragg gratings

Yiran Wu; Chuanyi Tao; Jingke Li; Xiaofeng Gao; Jingnan Zhang; Pinsheng Huang; Fuxiang Peng

doi:10.1117/12.2642050

19 December 2022 3D shape sensing measurements using distributed fiber Bragg gratings

Yiran Wu, Chuanyi Tao, Jingke Li, Xiaofeng Gao, Jingnan Zhang, Pinsheng Huang, Fuxiang Peng

Proceedings Volume 12320, Optics in Health Care and Biomedical Optics XII; 1232007 (2022) https://doi.org/10.1117/12.2642050
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

Distributed sensing technology provides engineers with powerful tools for position sensing, 3D sensing, shape sensing, and model validation applications. A new method for fiber-optic 3D shape sensing that can be used in minimally invasive biomedical devices is presented. A shape sensor was made using a heat-shrink tube, a Teflon hard tube and three strings of fiber Bragg grating (FBG). The sensor has compact structure, good flexibility. Besides, a shape reconstruction algorithm is established, for the location of each FBG array on the sensor, the calculation method of curvature and torsion is designed, and the continuous functions of curvature and torsion are constructed by cubic spline interpolation. The shape reconstruction under different bending conditions is realized by using the coordinate system rotation method. In the error analysis stage, the curvature error and torsion angle error of the sensor are optimized by introducing the scale factor. The results show that the optimized algorithm has good shape reconstruction effect.

Conference Presentation

Citation Download Citation

Yiran Wu, Chuanyi Tao, Jingke Li, Xiaofeng Gao, Jingnan Zhang, Pinsheng Huang, and Fuxiang Peng "3D shape sensing measurements using distributed fiber Bragg gratings", Proc. SPIE 12320, Optics in Health Care and Biomedical Optics XII, 1232007 (19 December 2022); https://doi.org/10.1117/12.2642050

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available