摘要
分析了二维四边形结构PSD的特性,介绍一种基于单片机的数字式二维PSD信号调理电路的设计方法,包括硬件设计,软件非线性校正、背景光和暗电流消除方法等.测试结果表明,用该方法设计的四边形结构PSD具有相当高的线性度和位置测量精度.
The characteristic of PSD with two dimensional tetra - lateral is analyzed. A design method of signal processing circuit based on single - chip microcomputer for two dimensional PSD is introduced. This method includes hardware design, nonlinear correction by software, elimination of back-ground light and dark current, etc. Testing result shows that the 2D tetra-lateral PSD with this processing circuit is of high linearity and precision.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第2期213-216,共4页
Journal of Fuzhou University(Natural Science Edition)
基金
福建省教育厅科研资助项目(JB05066)
关键词
电路
二维PSD
信号调理
非线性校正
高精度
circuit
two dimensional PSD
signal processing
nonlinear correction
high precision
