利用旋转小孔和光网校准云滴仪器

研制了校准前向散射滴谱探头(FSSP)和光阵探头(OAP)的校准设备.这是一种与FSSP一起使用的旋转小孔校准器,它利用光通过已知直径小孔的衍射来模拟水滴的散射光.这种设备能用于校准FSSP,测定FSSP光会聚角和用于仪器调整和寻找故障.光网上一已知直径的铬盘用于校准OAP和测定OAP对探头体积内散焦粒子的响应.

THE APPLIED PRINCIPLE AND EXPERIMENTAL METHOD OF L2F VELOCIMETRY IN HIGH TURBULENT INTENSITY AND PARTICLE DENSITY FLUID

Ⅰ. INTRODUCTION Laser dual focus (L2F) velocimetry is a non-Doppler velocimetry which has been developed in recent years and shown to be superior to LDV in some situations. The comprehensive review has been presented by Smart et al. The measuring informations come from the scattering light pulses of particles which embed in the fluid