Dynamic shape sensing using a fiber Bragg grating mesh

Douglas Bailey; Nikola Stan; Spencer Chadderdon; Daniel Perry; Stephen Schultz; Richard Selfridge

doi:10.1117/12.2010027

11 April 2013 Dynamic shape sensing using a fiber Bragg grating mesh

Douglas Bailey, Nikola Stan, Spencer Chadderdon, Daniel Perry, Stephen Schultz, Richard Selfridge

Proceedings Volume 8693, Smart Sensor Phenomena, Technology, Networks, and Systems Integration 2013; 869303 (2013) https://doi.org/10.1117/12.2010027
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

Abstract

When fiber Bragg gratings (FBG) are tightly packed in a mesh and their peaks get close at a distance on the order of individual FBG spectrum widths, they start overlapping and there is a distance below which both peaks won’t be detectable anymore using standard peak detection method. Ability to determine locations of individual peaks even after they overlap allows more gratings in a mesh and an increase in shape sensing resolution. We use a linear interpolation method to estimate peak locations when peaks overlap and become undetectable with standard peak finding technique. We test this algorithm on experimentally obtained data and compare peak locations obtained by the algorithm to exact peak locations. We analyze the error to show that algorithm performs well when velocity of peaks stays uniform during peak crossing. However, the error rapidly increases if the velocity changes during crossing and the maximum error can occur in a situation when peaks change direction during peak crossing.

Citation Download Citation

Douglas Bailey, Nikola Stan, Spencer Chadderdon, Daniel Perry, Stephen Schultz, and Richard Selfridge "Dynamic shape sensing using a fiber Bragg grating mesh", Proc. SPIE 8693, Smart Sensor Phenomena, Technology, Networks, and Systems Integration 2013, 869303 (11 April 2013); https://doi.org/10.1117/12.2010027

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Fiber Bragg gratings

Reflectivity

Detection and tracking algorithms

Sensors

Optical filters

Fiber optics sensors

Solids

Show All Keywords

Keywords/Phrases

Search In:

Publication Years