Abstract: A method for measuring particle size distributions of bulk materials such as cereals, cereal milling products, cereal products and the like, which is intended to enable the measurement of particle size distributions which vary by orders of magnitude. A sample of isolated particles is optically detected in an arrangement by at least two measurement methods. Preferably, detection of the contours of the particles and laser diffraction take place at the same time.

Abstract: A stream of ground particles is characterized by irradiating it with electromagnetic radiation and detecting electromagnetic radiation emitted from the irradiated particles. The detecting system includes an imaging system and a color image sensor for imaging the particles by way of the electromagnetic radiation emitted by the particles. The color image sensor has sensor image elements for spectrally selective detection of the electromagnetic radiation.

Abstract: The invention relates to an assembly and method for cost-effective in-line NIR measurement, in particular for cost-effective in-line NIR measurement of ingredients, quality parameters or in general product characteristics of cereal grains, inter alia, and constituents thereof in product streams (3) in flour mills or animal feed mills or the like. Using at least one measuring probe (1), the reflection spectra are advantageously recorded on free-flowing product (3) in a flow tube and are transmitted to an evaluating device (2) disposed spatially separately therefrom and having an integrated spectrometer (12). The measured values determined by the evaluating device (2) are transmitted to a control unit (24) or to a management system (22), where they can be used for monitoring and/or regulating the processes or installations. In comparison to NIR systems used until now, the costs per measuring location can be greatly reduced by the simple product presentation and re-use of the evaluating device.

Abstract: Method for measuring particle size distributions, in particular for the optical measurement of wide particle size distributions of bulk materials such as cereals, cereal milling products, cereal products and the like, which is intended to enable the measurement of particle size distributions which vary by orders of magnitude. To address this problem, a sample of isolated particles is optically detected in an arrangement by means of at least two measurement methods, wherein preferably detection of the contours of the particles and laser diffraction take place at the same time.

Abstract: A system and method for ground material characterization in a grinding system, in particular for characterizing particles in a ground material stream of ground grain products in a grain grinding system, uses an irradiation section through which at least a part of the ground material stream is fed and with irradiation means for irradiating the particles in the at least one part of the ground material stream with electromagnetic radiation; and a detection section through which the at least one part of the ground material stream is fed and with a detection means for detecting electromagnetic radiation emitted from the particles of the part of the ground material stream fed through the irradiation section. The detection means comprises an imaging system and a color image sensor for imaging the particles onto the color image sensor by way of the electromagnetic radiation emitted by the particles.

Abstract: In a method for triggering a DC motor through an integrated H-bridge circuit by using a control circuit and an apparatus for carrying out the method, a high-side transistor switch or a low-side transistor switch associated with each motor terminal, or both of the transistor switches, are each controlled or regulated to a conductive state by a respective guard circuit, if and as long as a potential at a motor terminal is or falls below a predetermined value. Each guard circuit has a biased transistor with a conductive state in which the associated transistor switches are made conducting through a current mirror.