Metrological characterization of an eddy-current-based system for non-destructive testing

Author

Bernieri, Andrea ; Betta, Giovanni

Author_Institution

Dept. of Autom., Electromagn., Inf. Eng. & Ind. Math., Cassino Univ., Italy

Volume

3

fYear

2000

fDate

2000

Firstpage

1608

Abstract

A low-cost probe for non-destructive testing on conductive materials was realized and tested. It is based on the measurement of the magnetic field produced by eddy currents and perturbed by the presence of cracks. The magnetic sensor used, characterized by the authors in a previous work, gives an output that, suitably processed, allow both amplitude and phase of the magnetic field to be measured. The preliminary tests reported confirm the feasibility of the proposed probe in detecting cracks, and in correctly identifying their direction and depth

Keywords

crack detection; eddy current testing; inverse problems; magnetic sensors; conductive materials; crack depth; crack detection; crack direction; eddy-current-based system; fluxset sensor; inverse problem; low-cost probe; magnetic field amplitude; magnetic field perturbation; magnetic field phase; magnetic sensor; metrological characterization; nondestructive testing; Conducting materials; Current measurement; Eddy currents; Magnetic field measurement; Magnetic materials; Magnetic sensors; Materials testing; Nondestructive testing; Phase measurement; Probes;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE

Conference_Location

Baltimore, MD

ISSN

1091-5281

Print_ISBN

0-7803-5890-2

Type

conf

DOI

10.1109/IMTC.2000.848742

Filename

848742