JIAO Guo-hua ~. Design of the high precision laser alignment system with PSD[J]. 2006, (6): 64-66. DOI: 10.13873/j.1000-97872006.06.021.
基于PSD的高精度激光校准仪的设计
摘要
针对国内对轴系的校准技术普遍采用传统的手工方法
提出了一种基于位置敏感探测器(PSD)的高精度激光校准的解决方法。在PSD信号处理上
使用高精度的A/D转换单片机运用软件算法的方式代替传统的运算电路方法计算PSD位置值
有效地提高了系统的精度和稳定性。回转式校准仪的偏移测量范围为±4mm
分辨力为1.5μm、精度为5.5μm。可以广泛用于精确轴系校准和定位。
Abstract
Aim at the traditional manual way of the shaft alignment
a high precise laser alignment system with position sensing detector(PSD) is describes.In the PSD signal process
a new method to calculate the value of the position is adopted by using single chip computer with A/D change and the software arithmetic insteud of substitute the pure circuit method.The accuracy and the stability of system are improved.The range of offset measurement is (±4 mm);the resolution is 1.5 μm
the accuracy is 5.5 μm.It can be used for shaft aligment and position.