一种可穿戴指间角度测量系统设计  

Design of a wearable measurement system for angle between fingers

作　　者：吴常铖[1,2] 曹青青 费飞[1] 杨德华[1] 许进 宋爱国[2] Wu Changcheng;Cao Qingqing;Fei Fei;Yang Dehua;Xu Jin;Song Aiguo(College of Automation Engineering,Nanjing Universily of Aeronautics and Astronautics,Nanjing 211106,China;School of Instrument Science and Engineering,Southeast University,Nanjing 210096,China;School of Aviation Engineering,Nanjing Institute of Industry Technology,Nanjing 210023,China)

机构地区：[1]南京航空航天大学自动化学院,南京211106 [2]东南大学仪器科学与工程学院,南京210096 [3]南京工业职业技术学院航空工程学院,南京210023

出　　处：《电子测量与仪器学报》2020年第12期94-100,共7页Journal of Electronic Measurement and Instrumentation

基　　金：国家自然基金(61803201,91648206);江苏省自然科学基金(BK20170803);中国博士后科学基金(2019M661686)资助项目。

摘　　要：针对人机交互的需求提出了一种可穿戴的指间角度测量系统。首先,基于弹簧片和应变片设计了可穿戴的指间角度传感器及其便携式测量电路,对指间角度的测量原理和传感器的测量电路进行了详细分析。其次,基于LabVIEW开发了测量系统的上位机软件,对指间角度传感器的数据进行滤波和角度解算,并采用图片分割旋转的方法实现了指间角度的可视化动态显示。最后,为验证系统的有效性进行了实验,结果表明,在0~30°测量范围内,设计的指间角度传感器的非线性误差为2.38%FS,迟滞误差为1.94%FS,重复性误差为5.29%FS,总精度为6.11%FS。To meet the needs of human-computer interaction,a wearable measurement system for angle between fingers is proposed in this paper.Firstly,based on spring sheet and strain gauge,a wearable sensor for the measurement of angle between fingers and a portable measurement circuit are designed.The measurement principle of angle between fingers and measurement circuit of sensor are analyzed in detail.Secondly,computer software is developed in LabVIEW.Data captured by the developed sensor is filtered and then converted to angle information by the computer software.And the angle between fingers is synchronous dynamic displayed by means of image segmentation and rotation.Finally,experiments are carried out to verify the effectiveness of the system.The experimental results show that the designed angle sensor has a nonlinear error of 2.38%FS,a hysteresis error of 1.94%FS,a repeatability error of 5.29%FS and a total accuracy of 6.11%FS within the measurement range of 0 to 30°.

关 键 词：可穿戴 指间角度 应变片 

分 类 号：TN709[电子电信—电路与系统]