Electrochemical impedance measurement system and method for use thereof
AssigneeImpact Technologies, LLC
InventorsCarl S. Byington, Matthew J. Watson, Ryan C. Brewer
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Abstract
Disclosed is a method and apparatus for an electrochemical impedance measurement, and in particular circuitry and components employed for such measurements. The system employs an injected broadband AC signal to produce an associated response signal. The subsequent analysis of injected and response signals, considering both magnitude and phase, gives broadband impedance and therefore fluid characteristic information. An embodiment described is relative to a smart oil sensor system suitable for sensing, analyzing and reporting the condition of oil or other liquids used in equipment and machinery.
Claims17
A system for sensing electrochemical impedance of a fluid, comprising:
- means for generating an AC broadband interrogation signal consisting of multiple frequencies overlaid upon each other within a composite waveform;
- means for simultaneously measuring both the interrogation and fluid response signals;
- and
- means for processing the measured signals to determine the impedance.
Dependencies are inferred from the claim text.