Vectorized Flaw Imaging by Arrayed Transmit-Receive Type ECT Probe

Author

Endo, Hisashi ; Takagi, Toshiyuki

Author_Institution

Inst. of Fluid Sci., Tohoku Univ., Sendai

fYear

2006

Firstpage

2538

Lastpage

2541

Abstract

This paper discusses an imaging of eddy current testing (ECT) data for surface breaking evaluation. The ECT probe used in this paper consists of transmit-receive (TR) type sensors as array elements to obtain the information on flaw directions, as well as deep situation. Switching two-directional scan modes gives two-dimensional vector mapping as ECT images. The ECT signals of the TR type sensor also give the information on flaw directions from their variation displayed on the complex number plane. Operating a complex number component of the signals visualizes directions of surface breaking

Keywords

array signal processing; eddy current testing; flaw detection; image processing; ECT images; eddy current testing; nondestructive testing; surface breaking evaluation; transmit-receive type sensor array; two-dimensional vector mapping; vectorized flaw imaging; Coils; Eddy current testing; Electrical capacitance tomography; Electromagnetic measurements; Image sensors; Inspection; Intelligent sensors; Probes; Sensor arrays; Surface cracks; Arrayed sensor type ECT probe; flaw imaging; transmit-receive sensor;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE-ICASE, 2006. International Joint Conference

Conference_Location

Busan

Print_ISBN

89-950038-4-7

Electronic_ISBN

89-950038-5-5

Type

conf

DOI

10.1109/SICE.2006.314741

Filename

4108070