Review of synthetically focused guided wave imaging techniques with application to defect sizing

被引：0

作者：

Davies, J ^{[1
]}

Simonetti, F ^{[1
]}

Lowe, M ^{[1
]}

Cawley, P ^{[1
]}

机构：

[1] Imperial Coll London, UK Res Ctr Nondestruct Evaluat, London SW7 2AZ, England

来源：

REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 25A AND 25B | 2006年 / 820卷

关键词：

arrays; imaging; resolution; ultrasonic testing;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Synthetically focused imaging has been used for some time in the NDE community. The techniques have primarily been directed towards imaging using bulk waves. There has recently been use of SAFT (Synthetic Aperture Focusing Technique) using guided waves in plates. Here, we review three different synthetically focused imaging algorithms for a linear array aperture: CSM (Common Source Method), SAFT and TFM (Total Focusing Method). The resolution of the different techniques is obtained from scalar diffraction theory and then validated by means of a low frequency (50kHz) steel plate experiment using PZT excitation and laser reception of the A0 mode. Imaging of through thickness slits parallel to the array is then discussed.

引用

页码：142 / 149

页数：8

共 10 条

[1]

[Anonymous], FOURIER OPTICS

[2] 3-DIMENSIONAL IMAGING USING A FREQUENCY-DOMAIN SYNTHETIC APERTURE FOCUSING TECHNIQUE [J].

BUSSE, LJ .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1992, 39 (02) :174-179

[3] ANALYTIC EVALUATION OF SAMPLED APERTURE ULTRASONIC-IMAGING TECHNIQUES FOR NDE [J].

CHIAO, RY ;

THOMAS, LJ .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1994, 41 (04) :484-493

[4] Post-processing of ultrasonic phased array data for optimal performance [J].

Holmes, C ;

Drinkwater, BW ;

Wilcox, PD .

INSIGHT, 2005, 47 (02) :88-90

[5] SYNTHETIC-APERTURE IMAGING FOR SMALL-SCALE SYSTEMS [J].

KARAMAN, M ;

LI, PC ;

ODONNELL, M .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1995, 42 (03) :429-442

[6]

Pavlakovic B, 1997, REV PROG Q, V16, P185

[7] Guided lamb waves and L-SAFT processing technique for enhanced detection and Imaging of corrosion defects in plates with small depth-to-wavelength ratio [J].

Sicard, R ;

Chahbaz, A ;

Goyette, J .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2004, 51 (10) :1287-1297

[8] 3-DIMENSIONAL ULTRASONIC-IMAGING EMPLOYING A TIME-DOMAIN SYNTHETIC APERTURE FOCUSING TECHNIQUE [J].

WASZAK, J ;

LUDWIG, R .

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 1990, 39 (02) :441-444

[9] Omni-directional guided wave transducer arrays for the rapid inspection of large areas of plate structures [J].

Wilcox, PD .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2003, 50 (06) :699-709

[10] A rapid signal processing technique to remove the effect of dispersion from guided wave signals [J].

Wilcox, PD .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2003, 50 (04) :419-427

← 1 →