高速转镜相机转速测量的同步传感系统  

Measurement of rotation speed of high-speed rotating-mirror camera

作　　者：满光明[1] 叶玉堂[1] 吴云峰[1] 邹翔[1] 何宇[1] 胡滢滨[1] 

机构地区：[1]电子科技大学光电信息学院,成都610054

出　　处：《强激光与粒子束》2006年第1期11-14,共4页High Power Laser and Particle Beams

基　　金：国防科技基础研究基金资助课题(0404NT0009)

摘　　要：同步传感系统新方法主要是利用激光的抗电磁干扰及可高速处理的性能得到转镜的时间信息,再经过光电转换来实现转速的测量。探测电路部分采用限幅放大,在一个大的动态范围内,都可以得到稳定的脉冲信号。为满足精度的需求,信号处理部分采用ASIC计数单元,精度为0.2 ns,然后通过嵌入式控制模块,方便地实现人机通信。由实验结果得到该方法的误差在ns级,比传统的高速相机传感器在精度上提高了一个数量级。A new method for real-time detecting the rotation speed of high-speed rotating-mirror camera is proposed.This method acquires the time information of the rotating mirror by the laser's capability of resisting the magnetic interference and being processed quickly.In order to gain a stable signal,an amplifier with limiting amplitude is needed to accommodate the wide range of the receiver power of the detector.An ASIC counter unit is adopted to meet the precision requirement and an embodied control module is used to realize the human-computer interaction conveniently.The experimental results show that the error can be restricted to nanosecond level and this system can improve one order of sensing precision than other sensing systems.

关 键 词：高速转镜相机 光电探测 计数器 ASIC 

分 类 号：TN011[电子电信—物理电子学]