地面三维激光扫描技术在导流槽测量中的应用

Application of Three-dimensional Laser Scanning Technology on Ground in Measurement of Diversion Channel

运用地面三维激光扫描技术对我国西昌与海南发射场3个发射工位的导流槽结构进行扫描测量「结合各导流槽的结构特点,根据现场操作经验,总结出“观察全局,勤用靶球,垂直靶纸,控制距离,冗余靶点”的测量准则,并建议标靶纸、标靶球与仪器间的距离分别控制在在20m和25m范围内,标靶纸中心法向轴线与扫描仪站点到标靶纸中心连线形成的平面角度不应超过30°。

The three-dimensional laser scanning technology was used to scan and measure the diversion groove structure of three launching stations in Xichang and Hainan launching sites. According to the structure characteristics of diversion grooves and field operation experience,the measuring criteria of"observing the whole situation,using target balls frequently,vertical target paper,controlling distance and redundant target point"are summarized. It is suggested that the distance between target paper,target ball and instrument should be controlled in the range of 20 m and 25 m respectively,and the plane angle formed by the normal axis of target paper center and the connecting line of scanner station to the center of target paper should be controlled in the range of 20 m and 25 m respectively. It should not exceed 30 degrees.