基于CPLD的三维自准直小角度传感器设计  

The design of three-dimensional self-collimated angle sensor based on CPLD

作　　者：严涛[1] 张庆生[1] 匡文[1] 贺鹏[1] 

机构地区：[1]北京理工大学光电工程系,北京100081

出　　处：《光学技术》2006年第z1期127-129,共3页Optical Technique

摘　　要：设计实现了一种基于CPLD和线阵CCD的三维自准直小角度传感器,采用七支620nm波长的LED组成的面光源,光通过乳白毛玻璃为分划板提供照明;并运用改进的测量算法,准确地算出偏转的角度。可极大地减少传感器光学部分的调试工作量,提高精度,降低成本。实验证明,在绕X、Y、Z轴转动±1°的范围内,静态误差优于40″;在不超过20°/s的转速下,动态误差不大于3′。A kind of three-dimensional self-collimated angle sensor based on CPLD and linear array CCD is designed.The light source panel including seven 620nm wavelength LEDs illuminate diaphragm through white ground glass.The gauche angle is calculated accurately with improved arithmetic,the optic debugging task is decreased greatly,the measurement accuracy is improved and the cost is reduced.It proves that the stationary error is better than 40″ within the range of ±1° and the dynamic error is better than 3' within the range of 20°/s.

关 键 词：光学测量 CPLD 自准直 角度传感器 VHDL 线阵CCD 毛玻璃 

分 类 号：TH741.2+3[机械工程—光学工程]