Acta Optica Sinica, Volume. 9, Issue 12, 1119(1989)
Measurement of droplet diameter distribution by laser scattering method
Theoretical researches and measurement of the mean diameter and the diameter distribution of particles, such as low-concentration water droplets appearing in wet steam turbines, have been done by using an optical measurement apparatus with a He-Ne laser developed by the authors. In the design of experimental system, an anti-Gaussian filter is used to eliminate the effect of Gaussian beam and also a Fourier Transformation lens of high precision is applied to eliminate the spherical aberration In addition, a photosensitive detector is manufactured. By meana of these three deyio^ it is possible to greatly inorease the measurement aoouraoy. This apparatus is oa!ibra1)ep' by directly measuring diameters of glass beads suspended in water. The results are-compared with those obtained by miorophotographio statistical method and with those obtained by using a Malvern instrument. The experimental results indicate that this! light scattering apparatua is oharaoterized by high precision, wide application area andi broad measurement range of particle size (5~200 μm).
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HU ZHUGUO, SHENG DEREN. Measurement of droplet diameter distribution by laser scattering method[J]. Acta Optica Sinica, 1989, 9(12): 1119