摘要
多光谱痕迹检测仪是一种用于痕迹检测的警用仪器,滤光片切换系统是实现多光谱光源的重要组成部分。为了获取多光谱光源,需要对作用于光源的两组滤光片分别进行自动切换,应用单片机AT89C51提供控制和时序信号,采用步进电机驱动芯片L298驱动两个步进电机,实现两组滤光片的精确切换。运行实验表明,滤光片切换系统工作平稳、可靠。
Multispectral vestige detector is a kind of device used in vestige detecting. The ray filters switching system is the most important part to make multispectral light-house. In order to get multispectral light-house, the two groups ray filters applied to the light-house must be respectively switched automatically. The microcomputer AT89CS1 is applied to provide control and sequence signal, step motor driving chip L298 is adopted to drive two step motors and achieves accurate switching of two groups ray filters is achieved. Operating trial shows that the ray filters switching system works stably and reliably.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第2期402-403,408,共3页
Computer Engineering and Design
基金
广东省公安厅科技攻关基金项目(20024422001)
关键词
单片机
步进电机
滤光片
多光谱
自动切换
microcomputer
step motor
ray filter
multispectrum
auto-switch
