Ultra-high curvature sensors for multi-bend structures using fiber Bragg gratings

被引：67

作者：

Jang, Minsu ^{[1
,2
]}

Kim, Jun Sik ^{[1
,3
]}

Um, Soong Ho ^{[2
,4
]}

Yang, Sungwook ^{[5
]}

Kim, Jinseok ^{[1
]}

机构：

[1] Korea Inst Sci & Technol, Ctr Bion, Seoul 02792, South Korea

[2] Sungkyunkwan Univ, Sch Chem Engn, Suwon 16419, South Korea

[3] Korea Univ, Sch Elect Engn, Seoul 02841, South Korea

[4] Sungkyunkwan Univ, SKKU Adv Inst Nanotechnol SAINT, Suwnon 16419, South Korea

[5] Korea Inst Sci & Technol, Ctr Intelligent & Interact Robot, Seoul 02792, South Korea

来源：

OPTICS EXPRESS | 2019年 / 27卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

D O I：

10.1364/OE.27.002074

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Measuring high curvatures is essential in various applications such as structural engineering, medical treatment, and robotics. Herein, we present a novel ultra-high curvature sensor with an ultra-thin and highly flexible structure incorporating fiber Bragg gratings (FBGs). The sensor can measure curvature of bidirectional bending up to 200 m(-1). In addition, the multi-bend curvature sensor in conjunction with the proposed calibration scheme enables the accurate reconstruction of a curve with varying curvature. The sensitivity and the accuracy of the curvature sensor are investigated for different sensor designs. Finally, we demonstrate the accurate shape sensing of various 2-D patterns using the multi-bend curvatures sensor. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：2074 / 2084

页数：11

共 16 条

[1] Application of long-period-grating sensors to respiratory plethysmography [J].