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两探测面结构激光粒度仪的接收光路设计

Optical Receiver Designing of Laser Particle Sizer with two Detecting Planes

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【作者】 魏永杰魏耀林葛宝臻

【Author】 Wei Yong-jie~(1,2,3)Wei Yao-lin~(2,3)Ge Bao-zhen~(2,3)(1.School of Mechanical Engineering,Hebei Urdversity of Technology,Tianjin 300130;2.School of Precision Instrument and Opto-Eleetronies Engineering;3.Key Laboratory of Opto-Electronic Information Science and Technology,Ministry of Education,Tianjin University,Tianjin 300072,China)

【机构】 河北工业大学机械工程学院天津大学精密仪器与光电子工程学院光电信息技术科学教育部重点实验室

【摘要】 为了扩大激光粒度仪测量的动态范围,采用同轴的两组接收透镜,将两个硅光电探测器阵列,分别置于前组透镜的后焦面和两组透镜的组合后焦面上,对测量信号进行组合后用改进共轭梯度法处理数据。通过优化光路结构,采用两组双胶合透镜和探测环半径均不大于45mm的探测器可满足同时测量5~3500μm粒径的要求。

【Abstract】 In order to extend the measurable dynamic size range in laser particle size measurement,the two lenses were set coaxially and signals were detected on the back focal plane of the first lens and the combined back focal plane of the two sets of lenses at the same time.The data were processed after the detected signals are combined.The two sets of lenses were both doublet and the radiuses of the detectors were all less than 45 mm.The particles in the size range of 5~3500μm were measured simultaneously by the presented sizer.

【基金】 国家自然科学基金项目,编号:60527002
  • 【会议录名称】 第七届全国颗粒测试学术会议、2008上海市颗粒学会年会论文集
  • 【会议名称】第七届全国颗粒测试学术会议、2008上海市颗粒学会年会
  • 【会议时间】2008-06
  • 【会议地点】中国湖南张家界
  • 【分类号】TH744.5
  • 【主办单位】中国颗粒学会颗粒测试专业委员会
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