基于STM32和CPLD的小型化近紫外CCD光谱仪
发布时间：2018-10-14 16:46
【摘要】：针对传统紫外光谱仪体积大、价格昂贵、测量时间长的缺点,研制了基于STM32和CPLD的小型化近紫外光谱仪。该仪器以STM32为主控制器,用CPLD驱动具有3 648像素的紫外增强型线阵CCD来采集光信号,采用SD卡存储数据并通过液晶屏来显示测量结果。该系统主要由分光模块、信号采集与处理模块、A/D转换模块和STM32控制处理模块构成。利用多块线阵CCD,实现了从近紫外到可见光波段的测量。采用低压汞灯作为标定光源,利用三次多项式拟合的算法,实现对光谱仪的波长定标。所设计的仪器体积小、质量轻、成本低、稳定性好、操作简单,具有一定的实际推广价值。
[Abstract]:A miniaturized near ultraviolet spectrometer based on STM32 and CPLD was developed to overcome the disadvantages of large volume, high price and long measuring time of traditional ultraviolet spectrometer. In this instrument, STM32 is used as the main controller and CPLD is used to drive the UV enhanced linear CCD with 3 648 pixels to collect the optical signal. The data is stored by SD card and the measurement results are displayed through the liquid crystal screen. The system consists of light splitting module, signal acquisition and processing module, A / D conversion module and STM32 control processing module. Multiple linear array CCD, is used to measure the wavelength from near ultraviolet to visible light. Low pressure mercury lamp is used as calibration light source and cubic polynomial fitting algorithm is used to calibrate the wavelength of spectrometer. The designed instrument has the advantages of small volume, light weight, low cost, good stability and simple operation.
【作者单位】： 华中科技大学光学与电子信息学院;
【基金】：中央高校基本科研业务费资助项目(HUST2015049) 国家自然科学基金项目(61464048)
【分类号】：TH744.1
本文编号：2271033
[Abstract]:A miniaturized near ultraviolet spectrometer based on STM32 and CPLD was developed to overcome the disadvantages of large volume, high price and long measuring time of traditional ultraviolet spectrometer. In this instrument, STM32 is used as the main controller and CPLD is used to drive the UV enhanced linear CCD with 3 648 pixels to collect the optical signal. The data is stored by SD card and the measurement results are displayed through the liquid crystal screen. The system consists of light splitting module, signal acquisition and processing module, A / D conversion module and STM32 control processing module. Multiple linear array CCD, is used to measure the wavelength from near ultraviolet to visible light. Low pressure mercury lamp is used as calibration light source and cubic polynomial fitting algorithm is used to calibrate the wavelength of spectrometer. The designed instrument has the advantages of small volume, light weight, low cost, good stability and simple operation.
【作者单位】： 华中科技大学光学与电子信息学院;
【基金】：中央高校基本科研业务费资助项目(HUST2015049) 国家自然科学基金项目(61464048)
【分类号】：TH744.1
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