Title:
ELECTROCHEMICAL IMPEDANCE MEASUREMENT SYSTEM AND METHOD FOR USE THEREOF
Document Type and Number:
WIPO Patent Application WO2005050228
Kind Code:
A3
Abstract:
Disclosed is a method (Fig. 4) and apparatus (Fig. 3) for an electrochemical impedance measurement, and in particular circuitry and components employed for such measurements. The system employs an injected broadband AC signal (Fig. 1) to produce an associated response signal (Fig. 2). 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 (Figs. 3, 6A - 6C) suitable for sensing, analyzing and reporting the condition of oil or other liquids used in equipment and machinery.
Inventors:
BYINGTON CARL S (US)
WATSON MATTHEW J (US)
BREWER RYAN C (US)
WATSON MATTHEW J (US)
BREWER RYAN C (US)
Application Number:
PCT/US2004/037794
Publication Date:
January 05, 2006
Filing Date:
November 12, 2004
Export Citation:
Assignee:
IMPACT TECHNOLOGIES LLC (US)
BYINGTON CARL S (US)
WATSON MATTHEW J (US)
BREWER RYAN C (US)
BYINGTON CARL S (US)
WATSON MATTHEW J (US)
BREWER RYAN C (US)
International Classes:
G01N27/416; G01N27/72; G01N33/28; G01R27/08; G01R33/12; G01R; (IPC1-7): G01R27/08
Foreign References:
| US6577112B2 | 2003-06-10 | |||
| US6028433A | 2000-02-22 | |||
| US20020196439A1 | 2002-12-26 | |||
| US5793196A | 1998-08-11 | |||
| US6147497A | 2000-11-14 | |||
| US6620186B2 | 2003-09-16 |
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