摘要
为进一步完善激光快速成型工艺,并提高快速成型技术的制造精度,对立体成型技术中广泛使用的振镜扫描系统进行了理论分析,提出并实践了一种新的校正算法。该算法用理论数据与激光束在相应点的实际数据进行比对,制成校正表,按插值算法校正实际的枕形畸变及其它误差。这种算法适用于使用振镜实现二维扫描的系统,能对应用这种原理工作的激光成型设备进行现场校正,并且能完全满足规定精度。
To further perfect the process of Laser Rapid Prototyping and to further improve the manufacturing precision of the Rapid Prototyping Technology, a theoretical analysis is made of the galvanometer scanning system widely-used in stero-prototyping technology, and a kind of new correction algorithm is suggested and practised. This algorithm is to work out the correction table by using the theoretical data to contrast with the real data of the corresponding points in laser beams so as to correct the pillow-shaped distortion and other errors in terms of the interpolation algorithm. This algorithm is adaptable to the 2-D scanning system by using the galvanometer scanner and is able to carry out th in-situ correction of laser phototyping equipment based on this working principle with the set accuracy completely satisfied.
出处
《西安理工大学学报》
CAS
2005年第3期232-235,共4页
Journal of Xi'an University of Technology
基金
中国博士后基金资助项目(361002)
西安理工大学博士启动基金资助项目(102-220175)
关键词
激光快速成型
振镜
二维扫描
枕形畸变
校正
laser rapid prototyping
galvanometer scanner
2-dimension scanning
pillowshaped distortion
correction
