G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 15/02 (2006.01) G01W 1/14 (2006.01)
Patent
CA 2339907
The invention concerns a pluviometric device for measuring the diameter of individual raindrops (G) passing through a measuring volume (110), comprising optical transmission means (100), receiving means including at least a sensor receiving at least part of the light derived from at least one transmission means after it has passed through the measuring volume, and processing means (20, 30) which receive the signal at said sensor (120) output and which determine the individual diameter of raindrops. The invention is characterised in that the receiving means include at least two such sensors (124a, 124b) which receive portions of light derived from the transmitting means which are superposed along the general displacement direction of the particles and the processing means (20, 30) operate a correlative processing on the signals at the output of said sensors.
L'invention concerne un dispositif pluviométrique pour la mesure du diamètre individuel de gouttes de pluie (G) traversant un espace de mesure (110), comportant des moyens (100) d'émission optique, des moyens de réception comportant au moins un capteur recevant au moins une partie de la lumière issue des moyens d'émission après que celle-ci ait traversé l'espace de mesure, ainsi que des moyens (20, 30) de traitement qui reçoivent le signal en sortie dudit capteur (120) et qui déterminent le diamètre individuel des gouttes de pluie, caractérisé en ce que les moyens de réception comportent au moins deux tels capteurs (124a, 124b) qui reçoivent des portions de la lumière issue des moyens d'émission qui sont superposées selon la direction générale de déplacement des particules et en ce que les moyens de traitement (20, 30) mettent en oeuvre un traitement de corrélation sur les signaux en sortie desdits capteurs.
Danguy Theodore
Delahaye Jean-Yves
Lavergnat Jacques
Vinson Jean-Paul Raoul
Centre National de La Recherche Scientifique (c.n.r.s.)
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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