A new time-frequency detection method of stray current field interference on metal structures

被引：40

作者：

Darowicki, K ^{[1
]}

Zakowski, K ^{[1
]}

机构：

[1] Gdansk Tech Univ, Fac Chem, Dept Anticorros Technol, PL-80952 Gdansk, Poland

来源：

CORROSION SCIENCE | 2004年 / 46卷 / 05期

关键词：

stray currents; STFT;

D O I：

10.1016/j.corsci.2003.09.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new detection method has been presented of stray current field interference on underground metal structures. The method employs short time Fourier transformation (STFT). This method of analysis allows determination of signal spectral power density changes (e.g., structure potential) in the function of time. In the paper results have been presented of total time-frequency analysis of a pipeline potential in a stray current field generated by a tram traction. The presented results have unequivocally shown that the described method allows accurate identification of the stray current source and determination if it interacts with the underground metal structure. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1061 / 1070

页数：10

共 18 条

[1]

[Anonymous], KOROZE OCHRANA MAT

[2]

[Anonymous], 1999, POLISH J ENV STUDIES

[3]

BAZZONI B, 1996, 202 NACE CORROSION96

[4]

Carmona R, 1998, PRACTICAL TIME FREQU, V9

[5]

FITZGERALD JH, 1995, MATER PERFORMANCE, V34, P19

[6]

Martin B., 1985, IND CORR, V3, P10, DOI 10.1515/CORRREV.2001.19.1.55

[7]

MARTIN BA, 1982, P CATH PROT THEOR PR

[8]

MOODY KJ, 1994, MATER PERFORMANCE, V33, P15

[9]

NIKOLAKAKOS S, 1998, 559 NAC CORROSION98

[10]

PARK K, 1995, J CORROSION SCI SOC, V24, P176

← 1 2 →