多片CCD采集系统设计与应用
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摘要
将12片自主研发的L3072UD型线阵CCD进行拼接,每片CCD的垂直转移脉冲(ΦP)、水平转移脉冲(ΦH1,ΦH2)和复位脉冲(ΦR)的驱动脉冲设计成相同的波形,通过电子快门的开启时间分别控制每片CCD的积分时间,且每3片CCD的驱动脉冲共用一个驱动,实现了一种12片CCD同时工作的光谱采集系统。将该系统应用于火花光谱仪,对样品的铜含量进行检测。实验结果表明,该CCD光谱采集系统能够实现2的铜含量检测精度,检测灵敏度高、通用性强,具有一定的推广应用价值。
In this paper,12 chips of L3072 UD linear array CCD were joined together,and the driving pulse of vertical transfer pulse(ΦP),horizontal transfer pulse(ΦH1 andΦH2)and reset pulse(ΦR)for each chip of CCD was designed to be the same waves.The open time of the electric shutter was used to control the integration time of each chip of CCD,and every three chips of CCD could share one driver,thus,a system for collecting the spectra of 12 chips of CCD working at the same time was designed and implemented.Applying the system to the spark spectrometer to detect the copper content of the samples.Experimental results show that the designed system can realize a detection accuracy of copper content of 2.
In this paper,12 chips of L3072 UD linear array CCD were joined together,and the driving pulse of vertical transfer pulse(ΦP),horizontal transfer pulse(ΦH1 andΦH2)and reset pulse(ΦR)for each chip of CCD was designed to be the same waves.The open time of the electric shutter was used to control the integration time of each chip of CCD,and every three chips of CCD could share one driver,thus,a system for collecting the spectra of 12 chips of CCD working at the same time was designed and implemented.Applying the system to the spark spectrometer to detect the copper content of the samples.Experimental results show that the designed system can realize a detection accuracy of copper content of 2.
引文
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[5]杜晓敏.基于DSP的光谱仪数据传输及信息分析研究[D].南京:南京理工大学,2016.Du Xiaomin.Data transmission and information analysis of spectrometer based on DSP[D].Nanjing:Nanjing University of Science and Technol.,2016.
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[8]李敏杰,李云飞,司国良,等.基于FPGA的一种长线阵CCD驱动时序电路设计[J].光学技术,2006,32(s1):522-527.Li Minjie,Li Yunfei,Si Guoliang,et al.Design of the time sequence driving circuit for a kind of long linear CCD based on FPGA[J].Optical Technique,2006,32(s1):522-527.
[2]虞益挺,饶伏波,乔大勇,等.一种新型CCD驱动电路设计方法[J].传感技术学报,2005,18(2):388-390.Yu Yiting,Rao Fubo,Qiao Dayong,et al.A new method to design CCD driving circuit[J].Chinese J.of Sensors and Actuators,2005,18(2):388-390.
[3]姚远.高速线阵CCD的驱动分析与设计[J].合肥工业大学学报(自然科学版),2009,32(4):560-563.Yao Yuan.Analysis and design of high-speed linear CCD drivers[J].J.of Hefei University of Technol.(Nature Science Edi.),2009,32(4):560-563.
[4]刘英明.CCD火花直读光谱仪的系统测试[D].杭州:杭州电子科技大学,2010.Liu Yingming.System test of CCD spark direct reading spectrometer[D].Hangzhou:Hangzhou Electronic Science and Technol.University,2010.
[5]杜晓敏.基于DSP的光谱仪数据传输及信息分析研究[D].南京:南京理工大学,2016.Du Xiaomin.Data transmission and information analysis of spectrometer based on DSP[D].Nanjing:Nanjing University of Science and Technol.,2016.
[6]杨波,陈文艺.基于FPGA的高速CCD驱动电路的设计与实现[J].西安邮电学院学报,2010,15(1):93-97.Yang Bo,Chen Wenyi.Design and implementation of high speed CCD driving circuit based on FPGA[J].J.of Xian University of Posts and Telecomun.,2010,15(1):93-97.
[7]赵震方,刘治华,李建鹏.一种新型CCD的驱动时序产生方法[J].机床与液压,2010,38(22):92-94.Zhao Zhenfang,Liu Zhihua,Li Jianpeng.A generating method of driving time order to a new CCD[J].Machine Tool&Hydraulics,2010,38(22):92-94.
[8]李敏杰,李云飞,司国良,等.基于FPGA的一种长线阵CCD驱动时序电路设计[J].光学技术,2006,32(s1):522-527.Li Minjie,Li Yunfei,Si Guoliang,et al.Design of the time sequence driving circuit for a kind of long linear CCD based on FPGA[J].Optical Technique,2006,32(s1):522-527.