基于软压电装置的无电池网球训练压力传感系统

IF 0.6 4区 工程技术 Q4 MECHANICS
Mechanika Pub Date : 2022-06-21 DOI:10.5755/j02.mech.30459
K. Yu, Yingxiang Gong, Zhifang Fan
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引用次数: 1

摘要

本文设计了一种基于柔性聚偏氟乙烯(PVDF)压电薄膜和螺旋线圈电路设计的无电池位置和压力监测系统,并用于网球训练。球拍表面首先被划分为块区域,在每个块区域放置传感传感器,以检测这些区域的击球位置和力度。为了提高网球训练系统的可扩展性,所有的设备都通过s形螺旋线连接,该螺旋线有两种状态:平时卷曲和工作时直。四个压电片组成串联系统,为能量采集系统和无线通信模块供电,实现无电池可穿戴功能。实验验证了撞击力与感应电压呈线性关系,斜率为0.05 V/N。该系统还在真实的网球比赛中进行了击球时间和击球位置的监控验证,有利于未来可穿戴设备在人工智能和物联网(IoT)中的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Battery-free Pressure Sensing System Based on Soft Piezoelectric Device for Tennis Training
In this work, a battery-free position and pressure monitoring system based on soft polyvinylidene fluoride (PVDF) piezoelectric thin film with helical coils circuit design is designed and used for tennis training. The racket surface is firstly divided into block areas and the sensing transducers are placed in each of them to detect the hitting position and force in these areas. To modify the extensibility of the system for tennis training, all the devices are connected by the S-shape helical line, which has two states: curled at usual and straight at work. Four piezoelectric patches form a series system to power the energy harvest system and wireless communication module, which help to realize the battery-free and wearable functions. A linear relation between the hitting force and induced electric voltage is experiment verified with the slope of 0.05 V/N. The system is also verified in the real tennis ball game monitoring for the hitting time and hitting position, benefiting the future application of wearable devices in artificial intelligence and the Internet of Things (IoT).
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来源期刊
Mechanika
Mechanika 物理-力学
CiteScore
1.30
自引率
0.00%
发文量
50
审稿时长
3 months
期刊介绍: The journal is publishing scientific papers dealing with the following problems: Mechanics of Solid Bodies; Mechanics of Fluids and Gases; Dynamics of Mechanical Systems; Design and Optimization of Mechanical Systems; Mechanical Technologies.
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