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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。
Developed a three-dimensional digital force-measuring shot put system with the same shape, size and weight as the international standard male and female shot-put. The core is built-in resistance strain type three-dimensional force sensor. The system is capable of wireless measurements alone and enables simultaneous measurement of kinematics and dynamics with cameras and 3D force measurement platforms. Can measure the body of the shot in the X, Y, Z space in three directions force value, force curve, the combined value of each direction, curve and X, Y, Z direction of the impulse during any period of time. The force measurement system with high precision, fast response; can achieve non-interference, no damage detection; measurement is safe and reliable. Continuous measurement, recording, display, storage, information processing and output printing. The training experiment proves that the system is not only a kind of scientific research instrument, but also a training monitoring system, which will provide powerful scientific assurance for the training of shot putters.