| 摘要 |
FIELD: optics. ^ SUBSTANCE: method comprises steps of measuring space-frequency spectra of images of dispersing particles with use of Fourier-optics and digital units; before measuring finding group of dispersing particles; determining its spatial position relative to boundaries of medium and then determining orientation of particle group in space; in order to find group of dispersing particles, receiving correlation coefficients of intensity of diffraction pattern of space scanned by range in three directions until time moment of achieving mutual matching of all averaged maximum values of correlation coefficients; in order to determine orientation, selecting maximally possible values of averaged correlation coefficients during process of changing angular position of each of three directions of coherent light distribution, then measuring space-frequency spectrum and averaging measurement results received for three directions; in order to find dispersing particles, using wide collimated light beam of coherent light and in order to determine orientation, using narrow collimated light beam. ^ EFFECT: enhanced reliability of measurement results of space-frequency spectra. ^ 2 cl, 3 dwg |
