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A New Project on Nondestructive Evaluation with High Temperature SQUIDS

1997; Linguagem: Inglês

10.1007/978-1-4615-5947-4_141

G. Peluso, G. Pepe, A. Ruosi, A. Barone, Pasquale Buonadonna, Roberto Teti, M. Valentino, U. Klein, C. Attanasio, L. Maritato, M. Salvato, C. Camerlingo, S. Pagano, M. Russo, E. Sarnelli, M. Prencipe,

Superconducting Materials and Applications

Eddy-current technique based on high temperature SQUID gradiometer is a promising tool for nondestructive evaluation of material defects which result from the machining process or ageing of electrically conductive structures. We present here the outline of a new project supported by the italian Istituto Nazionale per la Fisica della Materia (INFM), concerning the realization of such a prototype NDE instrumentation. We discuss both the NDE measurement set-up (in particular, the design of the cryostat and thermal shielding, and the x-y sample translation system) and the design of a YBCO SQUID gradiometer based on bi-crystal technology.