Patent ID: 8149004
Filing Date: 2012-04-03
Classification: G01N

Abstract:
1. An apparatus comprising: a corrosion sensor comprising a metal-containing corrodible element which is corrodible in a lubricant having an acidity level, wherein the acidity level is a measure of lubricant degradation and the corrosion sensor is configured to measure lubricant degradation in real time, wherein, in response to increasing corrosion, the metal-containing corrodible element is configured to release metal ions into the lubricant to control the acidity level, further wherein the increasing corrosion is associated with increasing resistance of the metal-containing corrodible element, wherein the corrosion sensor further comprises a reference corrodible element having a corrosion level of substantially zero; and an output device coupled to the corrosion sensor to display information related to the acidity level, the information based on the increasing resistance of the metal-containing corrodible element.