中阶梯光栅光谱仪CCD相机的设计  

Design of echelle spectrograph CCD camera

作　　者：潘明忠[1] 刘玉娟[1,2] 陈少杰[1,2] 宋楠[1,2] 崔继承[1,2] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院研究生院,北京100049

出　　处：《光学精密工程》2012年第8期1725-1731,共7页Optics and Precision Engineering

基　　金：国家自然科学基金资助项目(No.61108032);国家重大科研装备研制项目(No.ZBYZ2008-1)

摘　　要：为了高精度采集中阶梯光栅光谱仪的谱图,设计了一种适用于中阶梯光栅光谱仪原理样机的高性能面阵CCD相机。首先,根据中阶梯光栅光谱仪的谱图特点和CCD芯片的特性,设计了面阵CCD相机的时序产生电路、驱动电路及数据采集处理电路,实现了面阵CCD相机的低噪声、高灵敏度以及高动态范围。然后,利用LabVIEW编写了CCD相机测试软件。最后,利用设计的面阵CCD相机对汞灯谱线进行了测试。结果表明:面阵CCD相机获取的二维谱图图像清晰、信噪比较高;经二维谱图还原后,可以得到标准的汞灯谱线。该相机性能稳定、可靠,满足中阶梯光栅光谱仪原理样机的研制要求。To get the high accuracy 2-D spectra of a self-designed echelle spectrograph,a high performance area CCD camera was designed.Based on the characteristics of echelle spectrograph and CCD chip,the timing generator circuit,drive circuit and the data processing circuit for the CCD camera were developed,by which the low noise,high sensitivity and high dynamic rang were realized at the same time.Then,the test software of CCD camera was programmed with LabVIEW.Finally,the 2-D spectra of a Hg lamp were tested by using the area CCD camera.The result demonstrates that the area CCD camera can get the sharp 2-D spectra with high SNR.After reducing the spectra of Hg lamp,the standar spectral line is obtained.This CCD camera is steady,reliable and meets the needs of echelle spectrograph completely.

关 键 词：中阶梯光栅光谱仪 二维谱图 面阵CCD相机 时序 

分 类 号：TH744.1[机械工程—光学工程] TB853.9[机械工程—仪器科学与技术]