Calibration verification system for turbidimeter

Details Calibration verification system for turbidimeter Calibration verification system for turbidimeter

G - Physics

01

N

G01N 21/47 (2006.01)

Patent

CA 2332378

A system is described for verifying the calibration of a turbidimeter (10) having a light source (12) and a detector (14) for scattered light. A first polarizer (16) is positioned in the path of the light beam, and a second polarizer (18) is positioned between the first polarizer and the detector. The first polarizer linearly polarizes the light beam and the second polarizer restricts the amount of light passing through it to reach the detector.

L'invention concerne un système de vérification de l'étalonnage d'un turbidimètre (10) doté d'une source lumineuse (12) et d'un détecteur (14) de lumière diffusée. Un premier polariseur (16) est disposé dans la trajectoire du faisceau lumineux et un deuxième polariseur (18) est disposé entre le premier polariseur et le détecteur. Le premier polariseur polarise de façon linéaire le faisceau lumineux et le deuxième polariseur limite la quantité de lumière passant à travers pour atteindre le détecteur.

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