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    • 6. 发明公开
    • VORRICHTUNG ZUM BESTIMMEN VON PARTIKELGRÖSSEN
    • 一种用于确定粒级
    • EP2411787A1
    • 2012-02-01
    • EP10713123.7
    • 2010-03-23
    • Baumer Innotec AG
    • IHLEFELD, JoachimTARRAF, Amer
    • G01N15/02
    • G01N15/0205G01N15/0211G01N15/0227
    • The invention generally relates to the determination of particle sizes. The invention relates, in particular, to the determination of the sizes of particles in a particle stream. For this purpose, a first optical measuring system having a first matrix sensor and a lighting means which lights up the measurement volume are provided, wherein the first matrix sensor and the lighting means form a transmitted-light arrangement, and wherein the computation device is set up to use the image data from the first matrix sensor to determine projection surfaces of particles inside the measurement volume which has been lit up, and wherein the optical measuring arrangement comprises a second optical measuring system having a second matrix sensor for detecting the diffraction pattern of the particle, and wherein the computation device is set up to use the projection surfaces and the diffraction pattern to determine a size distribution of the particle in the measurement volume, wherein the computation device is set up to form the size distribution from particle sizes determined using the projection surfaces and from particle sizes determined using the diffraction pattern.