安徽工程大学机械与汽车工程学院;
基于Mie散射理论，研制了28.3 L/min激光尘埃粒子计数传感器.首先，通过非球面透镜和柱面透镜对激光光束进行整形，在光敏区域竖直方向上得到了近似平顶分布的狭长光斑.其次，将Mie散射理论与几何光学相结合设计了散射光路.然后，参考拉瓦尔喷管的原理设计了采样气路的结构，并使用流体动力学软件Ansys Fluent对微粒在光敏区域的空间分布进行了仿真验证.最后，使用聚苯乙烯标准微粒对传感器性能进行了测试.结果显示，发生0.5μm粒子时，计数效率达到了88.5%至95%.粒径分布误差测量，发生0.4μm粒子时，N0.5μm/N0.3μm范围在8%至11%；发生0.6μm粒子时，N0.5μm/N0.3μm范围在82.5%至88%.符合JJF1190-2008标准要求.
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基本信息:
DOI：
中图分类号:TP212
引用信息:
[1]杨龙,吴过,何锦涛等.28.3 L/min激光尘埃粒子计数传感器的研制[J].汕头大学学报(自然科学版),2025,40(02):43-54.
基金信息:
安徽省高校科研重点项目（2023AH050944）