Low-Cost Distributed Optical Waveguide Shape Sensor Based on WTDM Applied in Bionics

Bionic robotics, driven by advancements in artificial intelligence, new materials, and manufacturing technologies, is attracting significant attention from research and industry communities seeking breakthroughs. One of the key technologies for achieving a breakthrough in robotics is flexible sensor...

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Main Authors: Kai Sun, Zhenhua Wang, Qimeng Liu, Hao Chen, Weicheng Cui
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/17/7334
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author Kai Sun
Zhenhua Wang
Qimeng Liu
Hao Chen
Weicheng Cui
author_facet Kai Sun
Zhenhua Wang
Qimeng Liu
Hao Chen
Weicheng Cui
author_sort Kai Sun
collection DOAJ
description Bionic robotics, driven by advancements in artificial intelligence, new materials, and manufacturing technologies, is attracting significant attention from research and industry communities seeking breakthroughs. One of the key technologies for achieving a breakthrough in robotics is flexible sensors. This paper presents a novel approach based on wavelength and time division multiplexing (WTDM) for distributed optical waveguide shape sensing. Structurally designed optical waveguides based on color filter blocks validate the proposed approach through a cost-effective experimental setup. During data collection, it combines optical waveguide transmission loss and the way of controlling the color and intensity of the light source and detecting color and intensity variations for modeling. An artificial neural network is employed to model and demodulate a data-driven optical waveguide shape sensor. As a result, the correlation coefficient between the predicted and real bending angles reaches 0.9134 within 100 s. To show the parsing performance of the model more intuitively, a confidence accuracy curve is introduced to describe the accuracy of the data-driven model at last.
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spelling doaj.art-5ece009aa0d445f7b9bc703fffa39e742023-11-19T08:48:29ZengMDPI AGSensors1424-82202023-08-012317733410.3390/s23177334Low-Cost Distributed Optical Waveguide Shape Sensor Based on WTDM Applied in BionicsKai Sun0Zhenhua Wang1Qimeng Liu2Hao Chen3Weicheng Cui4Zhejiang University-Westlake University Joint Training, Zhejiang University, Hangzhou 310027, ChinaZhejiang University-Westlake University Joint Training, Zhejiang University, Hangzhou 310027, ChinaZhejiang University-Westlake University Joint Training, Zhejiang University, Hangzhou 310027, ChinaZhejiang University-Westlake University Joint Training, Zhejiang University, Hangzhou 310027, ChinaKey Laboratory of Coastal Environment and Resources of Zhejiang Province (KLCER), School of Engineering, Westlake University, Hangzhou 310030, ChinaBionic robotics, driven by advancements in artificial intelligence, new materials, and manufacturing technologies, is attracting significant attention from research and industry communities seeking breakthroughs. One of the key technologies for achieving a breakthrough in robotics is flexible sensors. This paper presents a novel approach based on wavelength and time division multiplexing (WTDM) for distributed optical waveguide shape sensing. Structurally designed optical waveguides based on color filter blocks validate the proposed approach through a cost-effective experimental setup. During data collection, it combines optical waveguide transmission loss and the way of controlling the color and intensity of the light source and detecting color and intensity variations for modeling. An artificial neural network is employed to model and demodulate a data-driven optical waveguide shape sensor. As a result, the correlation coefficient between the predicted and real bending angles reaches 0.9134 within 100 s. To show the parsing performance of the model more intuitively, a confidence accuracy curve is introduced to describe the accuracy of the data-driven model at last.https://www.mdpi.com/1424-8220/23/17/7334optical waveguideWTDMdistributed shape sensorbionics
spellingShingle Kai Sun
Zhenhua Wang
Qimeng Liu
Hao Chen
Weicheng Cui
Low-Cost Distributed Optical Waveguide Shape Sensor Based on WTDM Applied in Bionics
Sensors
optical waveguide
WTDM
distributed shape sensor
bionics
title Low-Cost Distributed Optical Waveguide Shape Sensor Based on WTDM Applied in Bionics
title_full Low-Cost Distributed Optical Waveguide Shape Sensor Based on WTDM Applied in Bionics
title_fullStr Low-Cost Distributed Optical Waveguide Shape Sensor Based on WTDM Applied in Bionics
title_full_unstemmed Low-Cost Distributed Optical Waveguide Shape Sensor Based on WTDM Applied in Bionics
title_short Low-Cost Distributed Optical Waveguide Shape Sensor Based on WTDM Applied in Bionics
title_sort low cost distributed optical waveguide shape sensor based on wtdm applied in bionics
topic optical waveguide
WTDM
distributed shape sensor
bionics
url https://www.mdpi.com/1424-8220/23/17/7334
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AT zhenhuawang lowcostdistributedopticalwaveguideshapesensorbasedonwtdmappliedinbionics
AT qimengliu lowcostdistributedopticalwaveguideshapesensorbasedonwtdmappliedinbionics
AT haochen lowcostdistributedopticalwaveguideshapesensorbasedonwtdmappliedinbionics
AT weichengcui lowcostdistributedopticalwaveguideshapesensorbasedonwtdmappliedinbionics