Method for analyzing a working fluid using impedance spectroscopy.

摘要

A method for obtaining an indication on line level and condition of the additives of an industrial oil containing less than 3% by weight of additives operating on the basis of active ingredients, where the oil is contained in a mechanical system It comprising: measuring the impedance data to a plurality of the oil and over the range of frequencies while the oil is contained in the mechanical system and is at 50 ° C or more; using the measured impedance data to construct Nyquist curve; obtain a value for at least one of resistance, capacitance, Omega max, impedance and time constant a from the curve; comparing the value or values ​​obtained with a value or default values ​​where an indication of the condition of the oil is obtained.