机载摄录光学反射转镜光信号检测系统设计  

Design of Optical Signal Detection System of Airborne Recording Optical Reflection Mirror

作　　者：高明[1] 张培亮[1] 吕宏[1] 

机构地区：[1]西安工业大学光电工程学院,西安710021

出　　处：《西安工业大学学报》2017年第4期267-273,共7页Journal of Xi’an Technological University

基　　金：陕西省教育厅重点实验室科学研究计划项目(14JS034)

摘　　要：为了实现对机载摄录系统光学组件内一六面转镜反射的光信号的检测,以提高机载摄录光学系统的装调精度,设计了一款光电信号检测系统.系统采用了双探测器探测的方法,并以STM32F407作为主控制器来完成对探测信号的处理.利用两个对径安装的光电探测器探测两路输出的光信号,通过信号调理电路将光信号转换为便于处理的电信号.结果表明:基于误差平均原理和冒泡算法设计的检测程序,能够有效的完成对两路电信号的检测和处理.设计的光电探测电路可以有效地将提取的光信号转换到0~3V的电信号,电压比较电路可以将转换后正弦电信号处理成0~3V的方波信号;设计的检测程序可以有效完成对正弦电信号最大值的提取和方波个数的统计,即实现了对光栅条纹数的检测和最大光强值的读取.In order to detect the light signal reflected by a six-sided rotating mirror in the optical assembly of the airborne recording system, which improves the assembly accuracy of an airborne recording optical system,a photoelectric signal detection system is designed. The design is based on the dual-detector detection method, and the detection signal is controlled by STM32F407. This method detects the two optical signals based on the two radially installed photodetectors, then changes the optical signals into electrical signals for easy handing by the suitable signal conditioning circuit. The measurement procedure is based on the average error principle and bubble algorithms, which effectively detects and processes two electrical signals. The experimental results show that the photoelectric detection circuit effectively changes the optical signals into the electrical signals of 0-3 V, the counting circuit also changes the sinusoidal electric signal into the square wave signal of 0 - 3 V ; The testing procedures effectively detect the sinusoidal electric signal＇s maximum value and the number of square wave, which achieve the detection of the number of raster pulse and the maximum light intensity value.

关 键 词：机载摄录 光学系统 光信号 光电检测 

分 类 号：TH74[机械工程—光学工程] TN702[机械工程—仪器科学与技术]