三维数字铅球测力系统的研发与应用研究

Study on Development and Application Research of Three-Dimensional Digital Shot Dynamometry System

研制了外形、尺寸、重量与国际标准男、女铅球相同的三维数字测力铅球系统,其核心是内装电阻应变式三维力传感器。该系统能够单独进行无线测量,并能与摄像机、三维测力平台进行运动学和动力学的同步测量。能够测得人体对铅球在X、Y、Z空间3个方向的力值、力的曲线、各方向的合力值、曲线和X、Y、Z方向上任意一段时间内的冲量。该测力系统精度高,反应速度快;可实现无妨碍、无损伤检测;测量安全可靠。可连续测量、记录、显示、存储、信息处理和输出打印等。训练实验证明该系统不仅是一种科研仪器,而且是一种训练监控系统,将为铅球运动员的训练提供有力的科学保证。

Same three-dimensional digital shot dynamometry system as size, weight and international standard shots for male and female putter was developed, The core was to force sensor of inside resistance strain type. This system can carry on wireless measurement alone, and synchronous measurement of kinematics and dynamics with camera and three dimensional dynamometry platform, it can examine the force value, curve and resultant force value, curve and impulse of human body to shot in three directions of X,Y and Z. This system was high in precision, reacted quickly and could continuously measure, record, display, store, information processing and output and print. Training experiments proved that this system was not only a scientific instrument but also a training monitor system. It provided the strong support for scientific training of shot putters,