초록 ▼

A method for determining quality of lubricating oil using electrodes in contact with the oil includes applying a potential having a first amplitude to the electrodes, wherein the first amplitude is sufficiently low such that substantially no solution current will flow; determining a first voltage ph

A method for determining quality of lubricating oil using electrodes in contact with the oil includes applying a potential having a first amplitude to the electrodes, wherein the first amplitude is sufficiently low such that substantially no solution current will flow; determining a first voltage phase lag with respect to the potential when the potential has the first amplitude; increasing amplitude of the potential to a second amplitude at which solution current flows; determining a second voltage phase lag with respect to the potential when the potential has the second amplitude; and determining the quality of the oil based on the voltage phase lags. A system for practicing the method is also provided.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method for determining quality of lubricating oil using electrodes in contact with the oil, the method comprising:applying a potential having a first amplitude to the electrodes, wherein the first amplitude is sufficiently low such that substantially no solution curre

[ What is claimed is:] [1.]1. A method for determining quality of lubricating oil using electrodes in contact with the oil, the method comprising:applying a potential having a first amplitude to the electrodes, wherein the first amplitude is sufficiently low such that substantially no solution current flows;determining a first voltage phase lag with respect to the potential when the potential has the first amplitude;increasing amplitude of the potential to a second amplitude at which solution current flows;determining a second voltage phase lag with respect to the potential when the potential has the second amplitude; anddetermining the quality of the oil based on the voltage phase lags.