用于体育科研的铅球三维测力仪研制

The Development of a Novel Smart Shot-put Sensor for Sports Researches

在体育科研领域,针对铅球投掷项目的动力学数据采集手段和设备目前十分匮乏。提出了一种新的动力学数据采集方法,并依此研制了一种新型的体育运动训练指导仪器—铅球三维测力仪。铅球测力仪能够在三维空间实时感知铅球运动员投掷过程中的发力状态,在接近真实训练比赛环境下对运动员的技术动作进行基于力信息的诊断。详细介绍和探讨了铅球测力仪的结构设计、测力原理以及相关的实验情况。对铅球运动员的实测结果验证了测力原理的正确性和仪器系统的有效性。

In the sports research area,it is short of dynamics data acquisition methods and devices for the shot-put event now. A new method aiming to solve this problem is proposed and a novel instrument for shot-put training is developed. It is able to measure the three-axis forces acted on the shot in real time during the shot-put process. Based on the acquired force information,it can also make a complete technique diagnosis of the athlete in near-real competition circumstances. The mechanical design,force-measuring principle and field experiment of the instrument are discussed in detail. Experiment results show that the force-measuring method is feasible and ideal for sports researches in shot -put.