Disclosed are a method and an apparatus for precision optical measurement of solute concentration and temperature of a transparent liquid. The apparatus includes a vessel (12) which contains a sample of liquid (14), the refractive index of which is to be determined, a light source (22) and a beam position...http://www.google.fr/patents/US6549276?utm_source=gb-gplus-shareBrevet US6549276 - Method and apparatus for optical measurement of concentration and temperature of liquids
Method and apparatus for optical measurement of concentration and ...