光学测速仪中的信噪比：检测角度的影响。

SNR in optical velocimeters: effect of detection angle.

作者信息

Ballik E A, Chan J H

出版信息

Appl Opt. 1977 Mar 1;16(3):674-6. doi: 10.1364/AO.16.000674.

DOI:10.1364/AO.16.000674

PMID:20168560

Abstract

Measurements of scattering power and SNR as a function of detection angle were carried out employing a differential heterodyne laser Doppler velocimeter (DLDV) and a white light fringe image velocimeter (WFIV). Particle diameters of 0.481 microm and 5.7 microm were employed for the DLDV and WFIV, respectively. In general, the measurements are in excellent agreement with calculations based on Mie theory.

摘要

利用差频外差激光多普勒测速仪（DLDV）和白光条纹图像测速仪（WFIV）进行了散射功率和信噪比随探测角度变化的测量。DLDV和WFIV分别采用了直径为0.481微米和5.7微米的颗粒。总体而言，测量结果与基于米氏理论的计算结果非常吻合。