电子测量与仪器学报

吴常铖,曹青青,费飞,杨德华,许进,宋爱国.一种可穿戴指间角度测量系统设计[J].电子测量与仪器学报,2020,34(12):94-100

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

DOI：

英文关键词:wearable angle between fingers strain gauge

基金项目: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

作者	单位
吴常铖	1. 南京航空航天大学自动化学院，2. 东南大学仪器科学与工程学院
曹青青	3. 南京工业职业技术学院航空工程学院
费飞	1. 南京航空航天大学自动化学院
杨德华	1. 南京航空航天大学自动化学院
许进	1. 南京航空航天大学自动化学院
宋爱国	2. 东南大学仪器科学与工程学院

Author	Institution
Wu Changcheng	1. College of Automation Engineering, Nanjing University of Aeronautics and Astronautics，2. School of Instrument Science and Engineering, Southeast University
Cao Qingqing	3. School of Aviation Engineering, Nanjing Institute of Industry Technology
Fei Fei	1. College of Automation Engineering, Nanjing University of Aeronautics and Astronautics
Yang Dehua	1. College of Automation Engineering, Nanjing University of Aeronautics and Astronautics
Xu Jin	1. College of Automation Engineering, Nanjing University of Aeronautics and Astronautics
Song Aiguo	2. School of Instrument Science and Engineering, Southeast University

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中文摘要:

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。

英文摘要:

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°.

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