The datum plane of system is made certain and its veracity is proven by experiment . the result indicate that the laser rotating check system has very high precision and sensitivity and display the check result with number 得到的实验数据表明：本课题研究的扫平仪检测系统具有很高的检测精度与灵敏度，并实现了检测结果的数字显示，在扫平仪的生产中具有一定的实用价值。
