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.
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
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)
