利用8031单片机实现的前向散射式跑道能见度激光测量系统的研究

A study of the forward scattering laser detection instrument for runway visual range using 8031 chip processor

介绍了一种利用交叉型双光路前向散射方法实现的跑道能见度激光测量系统，该测量系统主要由光学发射与接收系统、信号放大与处理系统及显示系统三部分组成。简要介绍了该系统的工作原理及基本结构。

This paper presents a new kind of the measurement instrument for runway visual range using crossing dual light beam forward scattering method.This instrument consists of three parts:optical emitting and receiving system,signal amplifying and controlling system,and display system.In detail,optical emitting and receiving system is mainly composed of laser diode,collimator lens,extender lens,receiving lens,cut off filter,narrow band interference filter,focusing lens,and Si pin photodiode.The signal amplifying and controlling system is mainly composed of voltage amplifier,sampling hold circuit,multi channel simulated switch,A/D converter and 8031 chip processor.And the display system is mainly composed of indicator,printer,and I/O circuit.The principle and the structure of the instrument are introduced.The key technologies and the corresponding solution method are discussed.