A comparison between parametric and PCA methods of dimension reduction application to an eddy current non destructive evaluation

被引：0

作者：

Le Brusquet, L ^{[1
]}

Davoust, ME ^{[1
]}

Fleury, G ^{[1
]}

机构：

[1] Supelec, Dept Measurement, F-91192 Gif Sur Yvette, France

来源：

INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS | 2004年 / 19卷 / 1-4期

关键词：

parametric model; principal component analysis; non destructive evaluation;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The remote field eddy current technique is used to inspect conductive pipes and to estimate the dimensions of grooves liable to exist in the conductive material. The problem is to calculate an estimation of groove size from observed data. A two-step inversion is proposed. The first step consists of a reduction of the observed data. For that purpose, a parametric approach and a principal component analysis approach are presented. The second step is based on a polynomial regression and a least square method is used for the two approaches described in the first step. Both approaches are finally compared in terms of precision and robustness.

引用

页码：119 / 124

页数：6