Optical detection of particle characteristics

Details Optical detection of particle characteristics Optical detection of particle characteristics

G - Physics

01

N

G01N 21/53 (2006.01) G01N 21/85 (2006.01) G01N 21/94 (2006.01) G08B 17/107 (2006.01)

Patent

CA 2735715

A method of detecting particles in an air flow is described. The method includes receiving a signal indicative of light intensity scattered from the air flow at a plurality of wavelengths and processing the signal indicative of the intensity of received light at each of the wavelengths and a corresponding wavelength dependent parameter to generate an output signal indicative of at least one characteristic of particles in the air flow. A particle detection system is also described.

L'invention porte sur un procédé de détection de particules dans un écoulement d'air. Le procédé comprend la réception d'un signal indiquant une intensité lumineuse diffusée à partir de l'écoulement d'air à une pluralité de longueurs d'onde et le traitement du signal indiquant l'intensité de la lumière reçue à chacune des longueurs d'onde, et un paramètre, qui dépend de la longueur d'onde, correspondant pour générer un signal de sortie indiquant au moins une caractéristique de particules dans l'écoulement d'air. L'invention porte également sur un système de détection de particules.

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