The utility model belongs to the field of spectral measurement. In order to put forward the analysis process of laser-induced breakdown spectroscopy technology and a new way to observe the change of plasma with time, the time-resolved measuring device of the laser-induced breakdown spectroscopy ICCD of the utility model consists of a laser, a focusing mirror, an image-enhanced charge coupled device ICCD, a driving circuit and a signal conditioning circuit, in which the ICCD consists of a light-induced breakdown spectroscopy ICCD. The structure of lens, image intensifier, optical fiber panel and area array CCD device is studied. The focal plane behind the lens coincides with the cathode receiving surface of the image intensifier, the anode fluorescent screen of the image intensifier is coupled with the front surface of the optical fiber panel, and the back surface of the optical fiber panel is coupled with the front surface of the area array CCD device. The laser produced by the laser is projected to the object under test through the focusing mirror and instantaneous plasma is produced on the surface of the image intensifier. The driving circuit controls the image intensifier in the ICCD for exposure. The utility model is mainly applied to time resolution measurement occasions.
【技术实现步骤摘要】
激光诱导击穿光谱ICCD时间分辨测量装置
本专利技术属于光谱测量领域,特别是一种用于激光诱导击穿光谱技术的ICCD时间分辨测量系统与装置。
技术介绍
激光诱导击穿光谱(LIBS)技术,是原子发生光谱技术中新兴且极具发展潜力的一项分析技术,其利用聚焦的高能量脉冲激光照射在待测物质表面,激发产生等离子体,并对辐射出的光谱进行定性或定量分析。激光诱导击穿光谱技术可实现原位、准无损、非金属样品的检测且几乎无需样品制备,吸引了大量研究学者的关注,在冶金、石油化工、农业、医药、环境科学、生命科学等各个领域正发挥着越来越大的作用。激光诱导击穿光谱技术的进一步发展,同时也对相应检测仪器性能的提高和相关光谱分析方法的改进提出了更高的要求。激光诱导击穿光谱具有显著的时间分辨特性,其诱导产生的等离子体寿命极短(3-4us),等离子体在这一过程中不同时刻的变化和光谱研究至关重要,目前采用ICCD的高性能光谱仪是唯一实现方法。ICCD(IntensifiedCharge-CoupledDevice)即像增强电荷耦合器件,实际是由像增强器与CCD相机组合形成的一种微光探测器。像增强器用于将微 ...
【技术保护点】
1.一种激光诱导击穿光谱ICCD时间分辨测量装置,其特征是,由激光器、聚焦镜、像增强电荷耦合器件ICCD、驱动电路、信号调理电路组成,其中,ICCD由光学镜头、像增强器、光纤面板、面阵CCD器件构成,镜头后焦面与像增强器阴极接收面重合,像增强器阳极荧光屏与光纤面板前表面耦合固定,光纤面板后表面与面阵CCD器件前表面耦合固定,激光器产生的激光经聚焦镜投射到被测物体并在其表面产生瞬间等离子体,驱动电路控制ICCD中的像增强器进行曝光,ICCD曝光形成的光信号被像增强器放大后经光纤面板传到面阵CCD器件接收面经其转换为电信号,电信号通过信号调理电路进行隔直、放大、滤波、相关双采样处理后输出。
【技术特征摘要】
1.一种激光诱导击穿光谱ICCD时间分辨测量装置,其特征是,由激光器、聚焦镜、像增强电荷耦合器件ICCD、驱动电路、信号调理电路组成,其中,ICCD由光学镜头、像增强器、光纤面板、面阵CCD器件构成,镜头后焦面与像增强器阴极接收面重合,像增强器阳极荧光屏与光纤面板前表面耦合固定,光纤面板后表面与面阵CCD器件前表面耦合固定,激光器产生的激光经聚焦镜投射到被测物体并在其表面产生瞬间等离子...
【专利技术属性】
技术研发人员:段发阶,傅骁,蒋佳佳,黄婷婷,马凌,张聪,
申请(专利权)人:天津大学,
类型:新型
国别省市:天津,12
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。