球壳表面缺陷的光学复合式非接触测量  

Optical Non-contact Composite Measurement of Surface Defects of Hemispherical Shell

作　　者：方海燕[1] 刘小勇[2] 乐静[3] 郭俊杰[4] 

机构地区：[1]西安电子科技大学测控工程与仪器系,陕西西安710071 [2]西安热工研究院有限公司,陕西西安710032 [3]西安理工大学,陕西西安710048 [4]西安交通大学,陕西西安710049

出　　处：《兵工学报》2011年第7期860-865,共6页Acta Armamentarii

摘　　要：为实现半球壳内外表面缺陷的高精度、非接触测量,在一种新型非正交系坐标测量机的基础上,提出了球壳内外表面缺陷的光学复合式测量方法。该方法将激光测量的点扫描与视觉测量的面扫描相结合,不仅可以测量表面缺陷的覆盖面积和分布,还可以测量缺陷的深度/高度。实际测量结果表明了该方法是可行的,具有较高的精度和效率。To achieve high-precision and non-contact measurement of outer and inner surface defects on hemispherical shell,a optical composite measurement method was proposed on the basis of a new type of non-orthogonal coordinate measuring machine.It combined the laser probe＇s point-scanning with the vision probe＇s surface-scanning,and could measure not only the coverage and distribution of the surface defects,but also their depth/height.Actual measurement results show that the method is feasible,precise and efficient.

关 键 词：仪器仪表技术 表面缺陷 非接触测量 球壳工件 缺陷识别 

分 类 号：TP241.3[自动化与计算机技术—检测技术与自动化装置]