Title:
ELECTROCHEMICAL NOISE AS A LOCALIZED CORROSION INDICATOR
Document Type and Number:
WIPO Patent Application WO/2010/002831
Kind Code:
A3
Abstract:
Systems and methods are presented for a method for measuring or monitoring localized corrosion in which an electrochemical noise (ECN) signal is sensed and filtered by a high-pass or band-pass filter to remove low frequency components not related to localized corrosion and a standard deviation of the filtered signal is computed and scaled to provide a localized corrosion value.
Inventors:
HLADKY KAREL (GB)
WESSELS ROOLF (US)
WESSELS ROOLF (US)
Application Number:
PCT/US2009/049155
Publication Date:
April 28, 2011
Filing Date:
June 30, 2009
Export Citation:
Assignee:
PEPPERL & FUCHS INC (US)
HLADKY KAREL (GB)
WESSELS ROOLF (US)
HLADKY KAREL (GB)
WESSELS ROOLF (US)
International Classes:
G01R27/08; G01N27/26
Foreign References:
| US4575678A | 1986-03-11 | |||
| US7239156B1 | 2007-07-03 | |||
| US7282928B1 | 2007-10-16 | |||
| US7265559B1 | 2007-09-04 | |||
| US20050109635A1 | 2005-05-26 | |||
| US6079276A | 2000-06-27 |
Other References:
YANG ET AL: "An In-Situ Galvanically Coupled Multielectrode Array Sensor for Localized Corrosion", JOURNAL CORROSION, vol. 58, no. 12, December 2002 (2002-12-01), pages 1004 - 1014, XP008128140
PISTORIUS: "Design Aspects of Electrochemical Noise Measurements for Uncoated Metals: Electrode Size and Sampling Rate", JOURNAL CORROSION, vol. 53, no. 4, April 1997 (1997-04-01), pages 273 - 283, XP008143720
PISTORIUS: "Design Aspects of Electrochemical Noise Measurements for Uncoated Metals: Electrode Size and Sampling Rate", JOURNAL CORROSION, vol. 53, no. 4, April 1997 (1997-04-01), pages 273 - 283, XP008143720
Attorney, Agent or Firm:
HIGHMAN, Eric (The Halle Building - 5th Floor1228 Euclid Avenu, Cleveland OH, US)
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