Reflection-photometric analytical system

Details Reflection-photometric analytical system Reflection-photometric analytical system

G - Physics

01

N

G01N 21/78 (2006.01) G01N 21/47 (2006.01) G01N 21/55 (2006.01) G01N 21/86 (2006.01)

Patent

CA 2434442

The invention concerns a reflection-photometric analytical system having a measuring head (10) comprising a source of radiation (36) and a radiation detector (26) for the reflection-photometric analysis of a target surface (12) of a test object (14) arranged at a distance from the measuring head (10) and in particular of a test strip for body fluids such as urine or blood. A triangulation unit (16) operating on the basis of optical triangulation is proposed for checking the distance without making contact in order to monitor or regulate the measuring distance.

Cette invention traite d'un système d'analyse photométrique par réflexion. Ce système comprend les éléments qui suivent. Une tête de mesure (10) comprenant une source de rayonnement (36) et un détecteur de rayonnement (26) pour l'analyse photométrique par réflexion d'une surface cible (12) d'objet test à contrôler (14) distant de la tête de mesure (10) et en particulier d'une bandelette réactive pour les liquides organiques, comme l'urine ou le sang. Une unité de triangulation (16) dont le fonctionnement repose sur la triangulation optique permet de contrôler la distance, sans effectuer de contact, afin de contrôler ou de réguler la distance de mesure.

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