Process and apparatus for physical-chemical analysis based on the control of interface tensions.

摘要: L'invention concerne un procede et appareil pour analyser le comportement d'une interface liquide/fluide, notamment en presence d'agents tensio-acifs. The invention relates to a method and apparatus for analyzing the behavior of fluid / interface, in particular surfactant acifs agents. Selon l'invention, on utilise tensiometre fonctionnant sur principe de la goutte pendante, asservit quantite liquide injectee dans valeur tension interfaciale calculee: augmente volume formee, au fur mesure que tend diminuer. According invention, sphygmomanometer operating principle hanging drop, slaves quantity liquid injected drop value interfacial calculated: it increases formed as tends decrease. On prevoira donc mecanisme formation (30); so we provide forming mechanism moyen d'acquisition image goutte; means acquiring an drop; d'extraction du contour (40); extraction (50) calcul partir forme des dimensions contour; calculating from shape regulation (60). regulating Le une methode rapide interfaciale, utilisant tous les points permettant d'obtenir moins seconde avec micro-ordinateur. uses rapid measurement tension, using all obtaining less than second with microcomputer.