| 摘要 |
A droplet size measuring apparatus of the forward scattering method, wherein particles to be measured in a scattering zone having a predetermined scattering path length are irradiated with parallel laser beams. The irradiated beams are scattered by the particles and the scattering beams are detected by the photodetectors arranged at predetermined scattering angles. The output of the photodetectors are input to an arithmetic operating unit, thus the intensity distribution I( theta ) of the scattered beams is measured. The droplet size distribution n(D) is calculated from the intensity distribution I( theta ) using the following equation: I( theta )= INTEGRAL {I0 exp(-l INTEGRAL c(D)n(D)dD. INTEGRAL i(D, theta + theta l)n(D)d(D)}dl
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