光纤传感融入机械工程类科研训练的教学研究与实践

Teaching Practice and Research on Training of Mechanical Engineering with Optical Fiber Sensing

机械工程类科研训练课程既要紧扣智能制造特征,又要立足于机械专业本科教育教学的特点。以“穿戴式光纤光栅触压智能感知器”科研训练为例,从核心原理、验证实验、创新实验等方面进行“一个核心、两片旁瓣”的科研训练教学研究。在0~10 N的实验范围内,测得了该触压感知器正、反行程的压力灵敏度分别为5.33、5.44 pm/N,迟滞误差为4.8%。学生通过科研训练实践,不仅巩固了基础原理,而且激发了学生科研创新内驱力。

The research training program of mechanical engineering should be based on the undergraduate characteristics of mechanical engineering,and follow the intelligent manufacturing features closely.This paper takes the program“Wearable Touch Sensing Device Using Optical Fiber Bragg Grating”as an example.From the core theory,verification experiment and the innovative experiment,the paper explores the method of“One Core,Two Side Lobes”.The experimental data show that the sensitivities of increasing and decreasing touch force are 5.33 pm/N and 5.44 pm/N,and the hysteresis error is 4.8%within the touch force range of 0-10 N.This method can not only strength the understanding of basic principle but also promote students’innovation-driven potential.