Spectrometry device for fluid analysis

G - Physics – 01 – N

Patent

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Details

G01N 21/85 (2006.01) G01J 3/02 (2006.01) G01J 3/10 (2006.01) G01J 3/12 (2006.01) G01N 21/25 (2006.01)

Patent

CA 2713310

The invention relates to a spectrometry device that comprises: a lighting device for generating a light beam covering a wavelength band, a probe (PRB) arranged so that the light beam from the lighting device interacts with a fluid to be analysed (20), and a spectral analysis device arranged for receiving the light beam after interaction with the fluid to be analysed, and for providing light intensity measures for different wavelength ranges, wherein the probe (PRB) includes a reflector (13) of the back-reflecting type towards the light source, that is arranged so as to receive the light beam from the lighting device through the fluid to be analysed and to reflect it in a substantially opposite direction while slightly spreading the same towards a collecting light guide (12) associated with the reflector and the spectral analysis device in order to at least partially collect the light beam having crossed the fluid to be analysed and to transmit the same to the spectral analysis device.

L'invention concerne un dispositif de spectrométrie comprenant : un dispositif d'éclairage configuré pour générer un faisceau lumineux couvrant une bande de longueurs d'ondes, une sonde (PRB) configurée pour que le faisceau lumineux issu du dispositif d'éclairage interagisse avec un fluide à analyser (20), et un dispositif d'analyse spectrale configuré pour recevoir le faisceau lumineux après avoir interagi avec le fluide à analyser, et pour fournir des mesures d'intensité lumineuse pour différentes plages de longueurs d'onde, la sonde (PRB) comprenant un réflecteur (13) de type rétro réfléchissant vers la source de lumière, disposé de manière à recevoir le faisceau lumineux issu du dispositif d'éclairage au travers du fluide à analyser et à le réfléchir sensiblement dans une direction opposée en l'élargissant légèrement vers un guide de lumière de recueil (12) associé au réflecteur et au dispositif d'analyse spectrale de manière à recueillir au moins partiellement le faisceau lumineux ayant traversé le fluide à analyser et à le transmettre au dispositif d'analyse spectrale.

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