Chemical constituent analyzer

G - Physics – 01 – J

Patent

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Details

G01J 3/42 (2006.01) G01J 3/02 (2006.01) G01N 21/05 (2006.01)

Patent

CA 2685581

The present invention relates to the use of Near-Infrared (NIR) spectroscopy to the application of the measurement of constituent concentrations of chemical based products typically having covalent bonding. Such constituent products may be fat, moisture, protein, and the like typically in liquid form or colloid suspensions. More specifically, the invention is directed toward an NIR analyzer with multiple detectors with no moving parts. The invention utilizes thermal control in conjunction with normalization algorithms to allow parallel processing of the measurements between a reference and at least one sample, which may provide more accurate results. In addition, this invention has the ability to use NIR in the third overtone and allows insitu processing, with no waste stream.

La présente invention concerne l'utilisation de la spectroscopie quasi-infrarouge (NIR) pour la mesure de concentrations en constituants de produits chimiques ayant généralement une liaison covalente. Ces constituants peuvent être de la graisse, de l'humidité, une protéine, et similaires, généralement sous la forme de liquide ou de suspensions colloïdes. Plus spécifiquement, l'invention concerne un analyseur NIR ayant plusieurs détecteurs sans aucune pièce mobile. L'invention utilise une régulation thermique en conjonction avec des algorithmes de normalisation afin de permettre un traitement parallèle des mesures entre une référence et au moins un échantillon, qui peut fournir des résultats plus précis. De plus, cette invention est capable d'utiliser le NIR dans le troisième harmonique et permet un traitement in situ, sans aucun flux d'échappement.

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