作　　者： ; ; ; ; ;

机构地区： 中山大学

出　　处： 《激光与光电子学进展》 2013年第4期89-95,共7页

摘　　要： 针对目前中药市场上存在的中药材质量问题,设计了一套基于推扫式光谱成像技术的光栅光谱成像装置。采用光栅分光,利用电控位移台在空间一维方向上扫描成像,通过图像拼接后获取了中药的光谱立方体。该装置成本低,无需特殊环境即可实现对中药的快速、无损检测。所测试系统参量包括定标波长、系统光谱响应范围、光谱分辨率、空间分辨率和系统稳定性等。以西洋参为例进行检测,得到了西洋参的光谱图像及其对应的光谱立方体,据此绘制其特征光谱曲线和空间荧光强度分布图像,得出了中药材西洋参的光谱特征和其主要活性成分人参总皂甙的空间分布。 In order to identify the quality of medical materials in current market of traditional Chinese medicine （TCM）, a grating spectrum imaging device based on sweeping-style spectrum imaging technology is designed. It can use electrically-controlled displacement platform to scan the sample and form an image in the one-dimensional spatial direction by taking the advantage of prismatic grating. Then, the TCM′s spectrum cube is obtained through image joining together. This device has a low cost and can realize nondestructive detection of TCM rapidly without particular laboratory environment. The detected parameters are as follows： the response range of system′s spectrum, spectral resolving rate, spatial resolving rate and the stability of the whole system. We take Panax quinquefolium as an example to detect and then combine its spectral images to form the spectrum cube. Its spectral characteristics and spatial distribution of its total saponins are obtained by describing the characteristic spectrum curve and spatial distribution imaging of fluorescence intensity.

关 键 词： 成像系统 光谱成像 光栅光谱仪 特征光谱曲线 中药检测

领　　域： [机械工程] [理学] [理学]