PROCEDE ET APPAREIL DE MESURE DE LA TURBIDITE D'UN MILIEU LIQUIDE

• Main Author: TAKASHI NAKAMURA, MOTOHIKO HIKUMA, TAKAHIRO KURATANI ET HARUO OBANA
• Format: Patent
• Language: French
• Published: 17.01.1986
• Edition: 4
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

L'INVENTION CONCERNE UN PROCEDE ET UN APPAREIL DE MESURE DE LA TURBIDITE D'UN MILIEU LIQUIDE.UNE CELLULE DE MESURE 2 AVEC UN CAPTEUR COMPRENANT UNE SURFACE 5 DE RECEPTION DE LUMIERE EST MISE EN CONTACT AVEC LE MILIEU LIQUIDE, LA SURFACE DE RECEPTION DE LUMIERE ORIENTEE DANS UNE DIRECTION PERMETTANT QUE LES BULLES S'EN ECARTENT. LA SURFACE DE RECEPTION DE LUMIERE EST NETTOYEE 7, 8, 9 PAR INTERMITTENCE, DE LA LUMIERE EST EMISE DANS LE MILIEU LIQUIDE ET LA LUMIERE DIFFUSEE EST DETECTEE.L'INVENTION S'APPLIQUE NOTAMMENT AUX MESURES DE TURBIDITE DES BOUES ACTIVEES, DE LA CONCENTRATION DE MICRO-ORGANISMES DANS DES SOLUTIONS FERMENTEES, ETC. The method of the present invention which relates to the measurement of the turbidity of a liquid media, is characterized by the following steps. (i) Placing a measuring cell having a sensor having a light-receiving surface in contact with the liquid media, wherein the light-receiving surface is oriented in a direction permitting bubbles dissolved in the liquid media to float away therefrom and out of the cell. (ii) Cleaning the light-receiving surface intermittently. (iii) Allowing bubbles in the cell to float out of the cell. (iv) Radiating light in the liquid media. (v) Detecting scattered light impinging on the light-receiving surface. The present invention also provides an apparatus for measurement of liquid media turbidity in accordance with the present invention.