Application of wavelet transformation in eddy current testing of steam generator tubes

被引：0

作者：

Grman, J ^{[1
]}

Ravas, R ^{[1
]}

Syrová, L ^{[1
]}

机构：

[1] Slovak Univ Technol Bratislava, Dept Measurement, Bratislava 81219, Slovakia

来源：

IMTC/2001: PROCEEDINGS OF THE 18TH IEEE INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, VOLS 1-3: REDISCOVERING MEASUREMENT IN THE AGE OF INFORMATICS | 2001年

关键词：

eddy current testing; localization and detection of indications; wavelet transform;

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Fast localization of indications of defects and structure elements in the defectoscopy of steam generator tubes is the field where application of wavelet transformation is very perspective. Our primary task is to find positions of potential indications within signal and secondary task is to calculate optimal boundaries of indications with respect to their future use in process of classification. The contribution concentrates on the choice of suitable wavelet function and parameters of localization algorithm. Basic result of this algorithm is vector of positions of indications within signal Use of multiresolution wavelet analysis implies a possibility to calculate optimal boundaries of found indications. Selected algorithm and his parameters were compared using real records of steam generator tubes and artificial defects and imitations of construction elements as well.

引用

页码：392 / 396

页数：3