Optical probe with sensor made of an optical polymer

Details Optical probe with sensor made of an optical polymer Optical probe with sensor made of an optical polymer

G - Physics

01

J

G01J 3/42 (2006.01) G01J 3/02 (2006.01) G01N 21/55 (2006.01)

Patent

CA 2224681

An ATR spectrometer contains an optical probe with a sensor made of a transparent material, a light feeding line and a light carrying-off line. The spectrometer is characterised in that the sensor contains an optical polymer or a mixture of different optical polymers. The probe of the disclosed spectrometer has the advantage of being economical and extremely flexible, so that it may be adapted to the concentration range of the solution to be tested. The existing gap between concentrations that may be measured by conventional transmission spectroscopy and by state of the art ATR spectroscopy is thus closed.

L'invention concerne un spectromètre à réflexion totale atténuée, comprenant une sonde optique pourvue d'un capteur en un matériau transparent, un conduit d'amenée et un conduit de sortie de la lumière. Le spectromètre se caractérise en ce que le capteur contient un polymère optique ou un mélange de différents polymères optiques. La sonde du spectromètre décrit a l'avantage d'être économique et extrêmement souple. Elle peut ainsi s'adapter à la plage de concentrations de la solution à examiner, ce qui permet de combler le vide qui existe entre les concentrations mesurables par la spectroscopie classique à transmission et les concentrations mesurables par la spectroscopie à réflexion totale atténuée de l'état de l'art.

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