【摘要】 激光基准信标仪是我们研制的一种新型测量仪器，它利用激光作为准直光，广泛用于平整土地、基础及楼板标定、大型机床的安装，以及安装门窗等各种建筑构件的水平和垂直度的检测.该系统采用的激光发射头为 He－ Ne激光器，功率 2 mW，扫描速度 0～ 12 r/s，准直光束更多还原

【Abstract】 The laser beacon is a new measuring device. Taking advantage of laser as collimation ray, it is widely used for leveling land, demarcating foundation and floorboard, installing large－size machines, examination of horizontality and verticality of buildings. The main technical parameters are as following: laser emitter: He－ Ne laser ; power:2 mw; datum beam:更多还原