Brief description of the particle size measurement automated of particles, and advantages of the evaluation of the morphological deformation of a population of particles

摘要

The present invention relates to a process for the particle size measurement automated of particles, which is essentially characterized in that it comprises at least the following steps: - acquisition of a cloud of points in three dimensions of the surface of the particle to be examined by the passage of the said particle to an optical device (2), - use of the cloud of points in order to characterize the overall shape of the particle (4) by the set of coefficients of the projection on a base of the projection [f], which base of the projection [f] is determined by the following steps: ∘ acquisition of a cloud of points in three dimensions of the surface of at least a particle of reference for the passage of this particle (4,6) to an optical device (2,2a),) reduction of the characterization of the surface of the particle of reference (4,6) to a vector r with n dimensions on the basis of the cloud of points obtained in the preceding stage, and) determination of the base of the projection [f] making it possible to characterize the overall shape of the particle of reference by the set of coefficients of the projection cr on the said base [f]. The present invention also relates to a method for evaluating the morphological deformation of a population of particles to be examined with respect to a population of particles of implementing the method of the particle size measurement automated mentioned above.