Electrochemical sensing of lubricant condition
First Claim
1. A method of correlating changes in the chemical and physical properties of non-electrolytic or weakly electrolytic fluids comprising monitoring the electrical response of said fluid over a period of time to an electrical potential applied to the fluid using a solid state device positioned within said fluid comprising a set of electrodes consisting of at least an anode, a cathode and a reference electrode, said set of electrodes being encapsulated in a solid electrolyte film, an exterior surface of the film being in contact with said fluid.
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Abstract
A sensor, and method of using the sensor, for determining changes in the chemical or electrolytic properties of non-electrolyte, or weakly electrolytic fluids comprising an anode, cathode and reference electrode covered by a solid electrolyte film. Changes in these properties are indicative of degradation of the fluid or dissolution therein of conductive materials from the surfaces in contact with that fluid.
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Citations
4 Claims
- 1. A method of correlating changes in the chemical and physical properties of non-electrolytic or weakly electrolytic fluids comprising monitoring the electrical response of said fluid over a period of time to an electrical potential applied to the fluid using a solid state device positioned within said fluid comprising a set of electrodes consisting of at least an anode, a cathode and a reference electrode, said set of electrodes being encapsulated in a solid electrolyte film, an exterior surface of the film being in contact with said fluid.
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3. A device for monitoring the existence of electrolytic species existing in or generated during the use of a non-electrolytic of weakly electrolytic fluids, the device comprising a set of electrodes consisting of at least an anode, a cathode and a reference electrode encapsulated in a solid electrolyte film, an exterior surface of the film being in contact with said fluid.
Specification