An improved sampling system is provided for on-line monitoring of a liquid such as a process liquor in a paper mill or the like. The sampling system includes, in general terms, an improved sampling probe for circulating process liquor from a process tank or the like to a sensor device such as a refractometer...http://www.google.fr/patents/US5001938?utm_source=gb-gplus-shareBrevet US5001938 - Sampling system
