光学精密工程2025，Vol.33Issue(4)：497-511,15.DOI:10.37188/OPE.20253304.0497
光纤光栅穿戴指套及手指运动监测
Fiber grating wearing fingerstall and the method of monitoring finger movement
摘要
Abstract
A wearable multi-joint fingerstall with three different specifications based on Fiber Bragg Grat-ing(FBG)was designed.It could shield the temperature effects on FBG.With good fixing coupling and anti-creep ability,a multi-joint finger motion model was established.Calibration experiments for joint an-gle measurements were performed by wearing the three types of fingerstalls on a finger model and the fin-gers of two volunteers.A comparative experiment was conducted using an Inertial Measurement Unit(IMU)sensor and the FBG sensing unit to monitor the angular velocity of the index,middle,and ring fin-gers.The fingerstall was used to monitor three different hand gestures,and a Backpropagation(BP)neu-ral network was employed for predictive analysis.The sensitivity error of the index finger in comparison with theoretical analysis is less than 7.7%.The average sensitivity for the corresponding joints during the"forward stroke"and"reverse stroke"in the finger model is greater than 5.3 pm/°,and for two Volunteers,the average sensitivity for the corresponding joints during the"forward stroke"and"reverse stroke"is great-er than 3.8 pm/°.Calibration experiments show that the fingerstall can accurately monitor the motion sen-sitivity of different finger joints and is applicable to various populations,the finger sleeve device can shield it from the influence of human body temperature.Bland-Altman analysis of the comparative experiment da-ta indicates consistency betweenthe results,demonstrating that the FBG sensing unit can monitor the mo-tion of the index,middle,and ring fingers effectively.Using the fingerstall to monitor gestures and apply-ing the BP neural network for prediction analysis,the Mean Squared Errors(MSE)for two Volunteers are 0.000 04 and 0.000 002,respectively.Comprehensive experimental results show that the FBG multi-joint fingerstall can precisely monitor the joint motion angle sensitivity and movement,and the BP neural network can be used for prediction.关键词
光纤布拉格光栅/穿戴式多关节指套/关节运动灵敏度/手势监测Key words
optical fiber bragg grating/wearable multi-joint fingerstall/joint motion sensitivity/gesture monitoring分类
电子信息工程引用本文复制引用
闫希研,冯艳,章紫微,张华..光纤光栅穿戴指套及手指运动监测[J].光学精密工程,2025,33(4):497-511,15.基金项目
国家自然科学基金(No.51665039) （No.51665039）
上海市地方院校能力建设项目(No.61763030) （No.61763030）
