Patent ID: 6734963
Filing Date: 2004-05-11
Classification: G01J,G01N

Abstract:
A system for spectroscopically differentiating fluid flowing in a conduit, the system comprising:a light source for producing light suitable for Raman spectroscopy; a sample cell mounted adjacent the conduit, the sample cell having a first opening, through which fluid diverted from the conduit enters the sample cell, and a second opening, through which fluid returned to the conduit exits the sample cell, the sample cell having portions allowing light from the light source to impinge on the fluid contained therein; a Raman spectrometer for receiving the light scattered from the fluid, the Raman spectrometer is mounted with the sample cell adjacent the conduit, and the Raman spectrometer generating an optical signal corresponding to the scattered light; an optical detection device for converting the optical signal to an electronic signal; and a computer device for processing the electronic signal to differentiate the fluid flowing in the conduit.