OPTICAL SENSOR FOR OIL SATURATION

摘要

A system for detecting the saturation level of water in oil, comprises an optical sensor having an emitter and a receiver, separated by a gap for transmission of light there between through a sample of the oil. The receiver is arranged to detect light transmitted through the oil from the emitter and produce a light signal representative of the light detected. A processor analyses the light signal produced by the receiver to determine an amount of fluctuation of the light signal and compares it with data stored in a memory relating to a preset value for an expected fluctuation of the light signal indicative of full saturation of the oil.