Method and apparatus for quantitative particle determination...

G - Physics – 01 – N

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G01N 15/00 (2006.01) G01N 15/02 (2006.01) G01N 21/49 (2006.01) G01N 33/04 (2006.01) G01N 33/26 (2006.01) G01N 33/28 (2006.01) G01N 33/487 (2006.01)

Patent

CA 2217476

The present invention comprises method and apparatus for the quantitative determination of particles in fluid. Apparatus of the invention comprises an emitter set of one or more light emitters, in combination with a detector set of one or more light detectors sensitive to the output of the emitters; during analysis of the sample, data from a plurality of signal paths between the emitter and detector sets are gathered. This information is subsequently evaluated by comparison with known data for different fluid particle contents. Some differentiation between different particles in a fluid sample are possible in many embodiments. Typical uses include analysis of milk and dairy fluids, blood samples, lubricants, suspensions of pigments, etc.

On décrit un procédé de détermination quantitative de particules dans des fluides à l'aide d'un appareil qui comprend un jeu d'un ou plusieurs émetteurs lumineux, combiné avec un jeu d'un ou plusieurs détecteurs de lumière sensibles à celle des émetteurs. Pendant l'analyse d'un échantillon, on collecte des données provenant de plusieurs trajets de signaux reliant les jeux d'émetteurs et de détecteurs. Ces informations sont ensuites évaluées par comparaison avec des données connues ayant trait à différentes teneurs en particules présentes dans des fluides. Dans de nombreuses variantes, on peut établir une certaine différenciation entre différentes particules d'échantillons de fluides. Des utilisations typiques incluent l'analyse du lait et de fluides laitiers, d'échantillons de sang, de lubrifiants, de suspensions de pigments, etc.

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