摘要
在轨道板生产车间环境下,使用机械臂法兰盘搭载法如三维成像仪,通过改变机械臂到平面标定板的距离,利用PolyWorks控制法如三维成像仪,对成像仪光学器件的视场、分辨率、工作距离和景深进行测试。测试结果表明,法如三维成像仪的工作距离为310~590 mm,扫描面积为274 mm×257 mm^496 mm×345 mm。使用四面体标准器和标准球作为标准件,将四个标准球安装在四面体标准器顶部,移动法如三维成像仪,在不同位置多次重复获取四个标准球点云,通过点云拟合,得到不同位置标准球直径和球心间距离,并与标准球直径和标准球间距离进行比对。分析结果表明法如三维成像仪精度优于0.05 mm,点云质量稳定可靠。
In the environment of track slab production workshop,the field of view,resolution,working distance and depth of field of the optical components of the imager are tested by using the mechanical arm flange carrying FARO 3D imager,changing the distance from the mechanical arm to the plane calibration plate,and using the PolyWorks control FARO 3D imager.The test results show that the working distance of the FARO 3D imager is 310~590 mm,and the scanning area is 274 mm×257 mm^496 mm×345 mm.Four standard spheres are installed on the top of the tetrahedral standard with tetrahedral standard and standard sphere as standard parts.Then moving FARO 3D imager,repeatedly acquires four standard sphere point clouds at different positions,through the point cloud fitting,the standard ball diameter and the distance between the ball centers at different positions are obtained and compared with the standard ball diameter and the distance between the standard balls.The analysis results show that the accuracy of the FARO 3D imager is better than 0.05 mm,and the point cloud quality is stable and reliable.
作者
叶昌尧
YE Changyao(China Railway 22nd Bureau Group Co.Ltd.,Beijing 100043,China)
出处
《铁道建筑技术》
2020年第8期25-28,共4页
Railway Construction Technology
基金
中国铁建股份有限公司科技研发计划项目(16-C39)。
关键词
法如三维成像仪
参数验证
精度测试
点云
FARO 3D imager
parameter validation
accuracy test
point cloud
