作　　者： ; ; ; ; ;

机构地区： 暨南大学理工学院光电工程系

出　　处： 《光子学报》 2008年第4期758-762,共5页

摘　　要： 为了使普通光学采集设备同时获得样品光学形态和成份信息,设计了一种可以实现连续光谱成像的测试装置.系统采用电可调液晶滤光器作为分光器件,低照度面阵CCD作为接收器,光谱分辨率可达到0.5nm,无需传统光谱成像仪中的机械推扫装置.在系统设计中,软件设计目的在于能够实现数据采集控制和后台数据处理等功能.对系统的工作参量进行了测试,给出了系统透过率函数和线性工作范围.为了检测设备工作的稳定性,对低压汞灯和氦氖激光器的光谱进行了检测,给出了多次测试结果的标准误差.最后对中药黄连的活性成份盐酸小檗碱进行了在体检测,通过确定光谱特征,可得到其空间分布信息. In order to get the two-dimensional pictures of the spectrum images without pushbroom component used in traditional spectrum imaging systems, a new apparatus is presented. In the system,the liquid crystal tunable filters（LCTFs） are used as the spectrum-dividing component,and the two-dimension CCD is used as the receiver component. The spectrum resolution of the system is up to 0. 5nm. The software is also designed to control the data captureing, data processing and data showing. Transmission rate and linear working range of the system are measured. The spectrum of low-pressure mercury lamp and He-Ne laser are tested by the system. The correct results can be gotten, which show the veracity of the spectrum test of the system. A piece of coptis which is a kind of traditional chinese medicine is tested invivo as an experiment.

关 键 词： 光谱成像 光谱测量 液晶滤光器 中药检测

领　　域： [机械工程] [机械工程] [机械工程] [机械工程] [理学] [理学]