【摘要】 介绍了一种数字铅球,它的质量与外形尺寸均与标准比赛用球一致,能够实时感知铅球运动员在投掷过程中人手施加于铅球的三维力信息。详细论述了此传感器的机械结构、数据采集系统及标定方法,并通过标定实验对传感器的线性度进行了验证,证明其具有良好的线性度。数字铅球具有准确度高、可靠性高、抗干扰能力强等特点,可用于铅球运动员的实际训练中。更多还原

【Abstract】 A digital shot sensor to measure shot-put force in time is introduced,which has the same mass and external dimensions with the normal shot put.The mechanical structure,data collecting system and calibrating method of the digital shot sensor are discussed .Through calibrating experiments,the sensor has good linearity and high accuratcy,work reliability and better antijamming.It has been applied in the daily shot-putters training.更多还原