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期刊信息
  • 主管单位:
  • 中国科学技术协会
  • 主办单位:
  • 中国仪器仪表学会、上海光学仪器研究所、中国光学学会工程光学专业委员会
  • 主    编:
  • 庄松林
  • 地    址:
  • 上海市军工路516号上海理工大学《光学仪器》编辑部
  • 邮政编码:
  • 200093
  • 联系电话:
  • 021-55270110
  • 电子邮件:
  • gxyq@usst.edu.cn
  • 国际标准刊号:
  • 1005-5630
  • 国内统一刊号:
  • 31-1504/TH
  • 邮发代号:
  • 单    价:
  • 15.00
  • 定    价:
  • 90.00
光阻法颗粒粒径测量验证实验
Experiment on particle size measurement and verification using light-blockage method
投稿时间:2018-12-03  
DOI:10.3969/j.issn.1005-5630.2019.05.001
中文关键词:  Mie光散射理论  光阻法  角散射法  信号标定
英文关键词:Mie scattering theory  light-blockage  angle scattering  signal calibration
基金项目:国家自然科学基金(51776129)
作者单位E-mail
齐永杰 上海理工大学 能源与动力工程学院, 上海 200093  
苏明旭 上海理工大学 能源与动力工程学院, 上海 200093
上海理工大学 动力工程多相流动与传热重点实验室, 上海 200093 
sumx@usst.edu.cn 
摘要点击次数: 9
全文下载次数: 3
中文摘要:
      针对低浓度液体介质中颗粒物的数目和粒径检测问题,基于几何光学原理和Mie光散射理论分析,研究光阻法对球形颗粒的检测,采用角散射并结合图像法验证信号测量的一致性。搭建了一套能采用3种方法同步测试的实验系统,通过对实验测得的6种标准颗粒的光阻信号进行标定,对不同标准颗粒脉冲幅值进行统计平均后拟合和优化,通过拟合公式进一步测定了其他颗粒的粒径。结果表明,对于标称为15.0 μm和63.6 μm标准颗粒的数目中位径与标称值偏差均小于2%,同时对于混合颗粒也具有较好的区分能力。
英文摘要:
      In order to detect and analyze the number and size of particulate matter in liquid media, the characterization of standard spherical particles were investigated by the method of light-blockage related to geometric optics and Mie scattering theory, while the method of angle scattering and the image method were used to verify the consistency of the measurement. A system was established that could be available simultaneously for the three methods. To perform a calibration, the amplitudes of obtained light-blockage signal for standard particles with six different sizes were statistically averaged and fitted, which consequently provided a fitting formula to determine the measurement results of other particles. The results for two standard particles and a mixed particle system showed that the median diameters for particles with nominal value of both 15.0 μm and 63.6 μm yielded a deviation less than 2%, and the mixed particles were also well identified in size.
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