A system for analyzing fluids. In one embodiment, the system measures the water content in an oil/water emulsion. A fluid probe comprising an infrared light emitting diode and a phototransistor measures the opacity of the fluid. The signal from the phototransistor is input into a series of potentiometers...http://www.google.es/patents/US5105085?utm_source=gb-gplus-sharePatente US5105085 - Fluid analysis system
