A method and apparatus for controlling the feed of water...

G - Physics – 05 – D

Patent

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G05D 11/00 (2006.01) G01N 27/49 (2006.01) G01N 33/18 (2006.01)

Patent

CA 2180365

A method for controlling the chemical treatment of a solution comprises the steps of feeding a treatment chemical into the solution, applying an external voltage across a reference electrode and a working electrode of a voltammmetric sensor while the electrodes are immersed in the solution, measuring a current that flows through the working electrode, converting the measured current into a feedback signal indicative of the concentration of treatement chemical in the solution, and using the feedback signal to control the rate of feeding the treatment chemical.

Un procédé permettant de réguler le traitmeent chimique d'une solution consiste à introduire un produit chimique dans ladite solution, à appliquer une tension externe à une électrode de référence ainsi qu'à une électrode de travail d'un capteur voltamétrique tandis que les électrodes sont immergées dans la solution, à mesurer un courant qui traverse l'électrode de travail, à convertir le courant mesuré en un signal de réaction indiquant la concentration du produit chimique de traitement dans la solution, et à utiliser le signal de réaction pour réguler la vitesse d'alimentation en produit de traitement.

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