【摘要】 本文根据Fraunhofor衍射理论,提出了采用自扫描光电二极管阵列的激光粒度仪的设计方案,建立了求解颗粒分布的计算模型.详细介绍了数据采集中的信号同步问题,给出了数据采集流程图.数值仿真和实测结果证明,本文的设计方案是正确实用的.更多还原

【Abstract】 Based on Fraunhofer diffraction theory, a plan is presented for designing laser particle size measurement instrument using self-scanning photodiode array as detection element. A mathematical model is established for particle size distribution. Signal synchronism in data sampling is described in detail and the flow chart of data sampling is given. The results of numerical simulation and practical measurements show that the design plan is correct.更多还原