激光诱导荧光实验装置的智能化  

AN INTELLIGENT SYSTEM FOR THE LASER INDUCED FLUORESCENCE MEASUREMENT

作　　者：宋芳青[1] 刘军[1] 薛兵 詹明生 周士康[1] 

机构地区：[1]中国科学院安徽光机所激光光谱学开放研究实验室

出　　处：《光谱学与光谱分析》1994年第3期111-119,共9页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金

摘　　要：现行大部分环形染料激光器的波长调谐机构均采用手动或匀速机械驱动方式，对应的波长调谐为非线性，不便于激光波长的精确定标。本工作利用单板机控制步进电机变速驱动双折射滤光片，实现了波长调谐的线性化。同时，为了提高荧光信号测量的信噪比，控制仪器，实现重复扫描，使电多道光谱分析仪的数据采集及荧光光谱扫描得以重复叠加。另外，对激光诱导荧光测量系统进行智能控制后，可同时监测激光功率和荧光信号；可对实验数据进行存储、打印及绘图等处理。Usually, the wavelength tuning unit of ring dye lasers is driven uniformly, andthe corresponding laser wavelength change is nonlinear. Therefore the wavelength can not becalibrated precisely. In this work we use a single board computer to control the step-in motorto drive birefringent filter of the tuning unit and realize the linearization of the laserwavelength tuning. On the other hand, in order to increase the signal to noise ratio, we control the wavelength scanning to be repeated so that the data collection of the multi-channelanalyser and the fluorescence spectrum scanning can be accumulated. In this system, the laser power and the fluorescence signal can be measured simultaneously, and the experimentaldata can be processed and treated by computer.

关 键 词：激光诱导荧光 智能化 重复扫描 

分 类 号：O657.38[理学—分析化学]