铅球、链球场地定位器的研制

On the development of shot and hammer field positioner

研制了一种结构简单,易于普及,用于铅球、链球场地定位,能取代传统定位方法的实用新型体育定位器材———铅球、链球场地定位器.其具有不用测绘计算就可定位,误差小,定位准确,操作方便,省工,省力,省时等优点,使传统的田赛场地测绘方法简单化.

This research by using methods of experiment, logical reasoning, etc. is to develop and manufacture a new practical type of sport positioning device which can be used to locate the shot and hammer fields. It is structurally simple, easy to be popularized and capable of replacing traditional way of positioning. The advantages of this device are positioning without mapping and calculation, small error, accurate positioning, convenient operation, labour-efficiency and time-efficiency that makes the traditional method of measure for competition area much easier.