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AssigneeFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
InventorsThorsten GRAUNKE, Wladimir TSCHEKALINSKIJ, Sebastian HETTENKOFER, Stephan JUNGER, Jens-Uwe GARBAS, Ruslan RYBALKO
Estimating the term…
An assembly for detecting and/or determining the concentration of one or more substances in a liquid or gaseous medium comprises a plurality of distributed measurement cells having one or more detectors, so that an absorption of optical radiation in the liquid or gaseous medium can be sensed in the measurement cell for a plurality of characteristic absorption peaks of the substances to be determined, and an optical device for producing and guiding the optical radiation, so that a beam of the optical radiation is guided through all the measurement cells, and which optical device comprises a plurality of light sources, which each emit radiation at a wavelength of a different one of the characteristic absorption peaks, and a beam combiner, by means of which the radiation emitted by the light sources is merged to form the beam. The assembly allows spatially resolved measurement and can be implemented economically.
Assembly for detecting and/or determining the concentration of one or more substances in a liquid or gaseous medium which exhibit characteristic absorption peaks when illuminated with optical radiation, consisting of at least
Dependencies are inferred from the claim text.