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AssigneeBASF SE
InventorsBernd Sachweh, Camiel Heffels, Matthias Rädle, Helmut Biermann, Hans Jürgen Eisen, Jürgen Ettmüller, Johannes G Reuvers
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The present invention creates an apparatus for determining physical collective parameters of particles in gases, which comprises a measuring chamber with light entrance ports (121) and exit ports (123, 124) for electromagnetic radiation, an emission source (113) for electromagnetic radiation being provided and at least two detection apparatuses (114, 115) for determining the intensity of electromagnetic radiation scattered at the particles being provided, and the detection apparatuses (114, 115) detecting electromagnetic radiation of different scattering regions. The present invention further creates a method for determining physical collective parameters of particles in gases, the particles being exposed to electromagnetic radiation which is scattered at the particles, wherein the intensities of the scattered radiation of at least two different scattering regions are determined and their ratio is taken subsequently.
An apparatus for determining physical collective parameters of particles in waste gas streams from chemical plants, which comprises a measuring chamber with entrance ports and exit ports for electromagnetic radiation, an emission source for electromagnetic radiation being provided and at least two detection apparatuses for determining the intensity of electromagnetic radiation scattered at the particles being provided, and the detection apparatuses detecting scattered electromagnetic radiation of different scattering regions, wherein means for multistage or continuous purging of the emission source for electromagnetic radiation with at least one fluid provided.
A method for determining physical collective parameters of particles in waste gas streams from chemical plants, the particles being exposed to electromagnetic radiation emitted by an emission source, said electromagnetic radiation being scattered at the particles, wherein the intensities of the scattered radiation of at least two different scattering regions are determined and their ratio is subsequently taken and wherein the emission source is purged continuously or in a multistage process with at least one fluid.
Dependencies are inferred from the claim text.