Particle size measuring device e.g. laser particle sizer, for determining particle size distribution of sample material, has reflector device deflecting propagation direction of beam bundles, where movement takes place between pad and cell

摘要

The device (1) has a light source (10) for generating a monochromatic propagation direction of light beam bundles (11) that defines an optical pad. A propagation direction of the light beam bundles are deflected by a reflector device so that the optical pad is curved. Two measuring cell positions on the optical pad lies upstream and downstream of the reflector device, respectively, where a relative movement takes place between the optical pad and a measuring cell transverse to the optical pad at the measuring cell positions. An independent claim is also included for a method for determination of a particle size distribution of a sample material.