Optical Particulate Size Measurements Using a Small-Angle Near-Forward Scattering Technique

摘要

Techniques for measuring particle size distributions in the range of 1 to 50 mu m based on light scattering principles were reviewed and examined to define appropriate diagnostic tools for applications in fossil fuel combustor environments of advanced power systems. Light scattering at forward small angles (1 to 5 exp 0 ) was identified as one of the most promising optical techniques based on a systematic theoretical investigation using Mie calculations. To verify the theoretical predictions, a laboratory bench experiment was initiated in this near-forward small-angle configuration using monodispersed and polydispersed particles of known physical properties of different refractive indices and sizes. (ERA citation 04:050565)