Visibility of large spheres observed with a laser velocimeter: a simple model.
A model is developed to express the signal visibility for large refracting or reflecting spheres observed with a fringe-type laser velocimeter. The model yields a closed form solution for the visibility when scattering is observed off axis in the near forward, 90 degrees , or near backward direction. Results show that particle size range can be adjusted by aperture adjustments at the scattered light receiver. Comparison of model predictions with recently published numerical computations shows good agreement.
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