Patent ID: 9702862
Date: 2017-07-11
CPC Classifications: G01N

Claim:
1. A method for measuring oil quality, the method comprising: measuring a property of a material in contact with oil, wherein the material is physically small enough to be placed in a sensing element having a first chamber sensitive to fuel contamination and a second chamber that is not sensitive to fuel contamination, whereby a differential signal applied to the first chamber versus that of the second chamber generates the measured property; comparing the measured property of the material in contact with the oil against a previously measured property of the same material, wherein the previously measured property is part of a stored series of oil analyses conducted over time; identifying a change in the measured property of the material as compared to the previously measured property of the material, wherein the change indicates fuel intrusion into and contamination of the oil; and graphically illustrating the change of the measured property by way of a light emitting diode (LED).