Title :
Non destructive evaluation sensor based on magnetostrictive delay lines
Author :
Hristoforou, E. ; Vazquez, M.
Author_Institution :
Lab. of Metrol., TEI of Chalkis, Psahma Euboea, Greece
Abstract :
A sensing principle is proposed in this paper concerning non-destructive evaluation of metallic surfaces. The sensing principle is based on the magnetostrictive delay line technique, allowing yokeless operation and only two orthogonal motions for a complete specimen characterization.
Keywords :
crack detection; delay lines; eddy current testing; magnetic field measurement; magnetic sensors; magnetostrictive devices; NDE sensor; complete specimen characterization; crack detection; eddy current method; magnetic field deformation; magnetostrictive delay lines; metallic surfaces NDE; orthogonal motions; pulsed eddy current; sensing principle; yokeless operation; Coils; Conductors; Delay lines; Eddy currents; Magnetic fields; Magnetic flux; Magnetic sensors; Magnetostriction; Surface cracks; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.699899
