A flexible temperature sensing finger using optical fiber grating for soft robot application

作     者：HE Qing ZHANG Qingchao 贺庆;张青超

作者机构：School of Instrument Science and Opto-Electronics EngineeringBeijing Information Science and Technology UniversityBeijing 100192China 

出 版 物：《Optoelectronics Letters》 (光电子快报（英文版）)

年 卷 期：2021年第17卷第7期

页      面：400-406页

核心收录：

学科分类：080202[工学-机械电子工程] 08[工学] 0804[工学-仪器科学与技术] 0802[工学-机械工程] 

基　　金：supported by the National Natural Science Foundation of China (No.51775051) the Scientific Research Project of Beijing Educational Committee (Nos.KM201911232019 and KM202011232008) 

主　　题：PT100 robot application 

摘      要：Bionic perception, especially temperature-aware, is one of the important issues in soft robots research. This paper presents a method to implant temperature sensor network into soft robot finger by using optical fiber gratings. For avoiding strain disturbance, a dedicated metal tube is designed to package and protect the optical fiber gratings. For implanting the sensors firmly, a solution using two kinds of adhesive is proposed. The prototype is calibrated in high precision temperature bath and then measured under different temperatures and different bending conditions, respectively. The experimental results are compared with electronic temperature sensor(PT100 thermal resistance), which verifies the accuracy and repeatability of the design. With the dedicated coating and adhesive solution, the proposed temperature sensor network is suitable for implanting into soft robots for the temperature-aware ability.