METHOD FOR HOLOGRAPHIC ANALYSIS OF SUSPENDED PARTICLES Russian patent published in 2022 - IPC G01N15/02 

FIELD: measuring technology.

SUBSTANCE: invention relates to the field of measuring technology and concerns a method for holographic analysis of suspended particles. The method includes illumination of the particle stream with a light beam and registration of images of particles, by which the sizes and shapes of the latter are judged. After passing through the particle stream, the light beam is unfolded in relation to the initial beam and again passed through the particle stream so that the registration of the particle image occurs from four different angles of the light beam. The light beam is coherent, and it is preliminarily divided into a reference and an object beam. In this case, the reference one is directed right to the matrix of charge-coupled devices, and the object one is directed to the matrix of charge-coupled devices through the particle flow.

EFFECT: providing the possibility of automatic registration of the shape of particles and their orientation in space during the movement of the dispersed flow in the entire dimensional range of sizes and shapes and to increase the accuracy of measurements for particles of complex configuration.

1 cl, 2 dwg