Istituto di Scienza e Tecnologie dell'Informazione     
Bozzi E., Chimenti M., Genovesi S., Salerno E., Zucchelli A. Equipment and procedures for microwave nondestructive evaluation of lapideous materials. The document has been submitted to Conference: 13th Conference on Microwave Techniques, Prague, Czech Republic, 26-28 September 2005, Technical report, 2005.
A procedure for in-field nondestructive evaluation of lapideous materials is described. A portable instrument has been developed to evaluate the average permittivity of the probed volume. This is based on measuring the resonance frequency of a microstrip patch sensor. Once this hardware is enabled to perform coherent measurements, the optimization of an edge-preserving energy functional can yield high-resolution permittivity range profiles.
Subject Nondestructive evaluation
Microwave measurements
Inverse scattering
Genetic algorithms
J.2 Physical sciences and engineering
90C27 Combinatorial optimization

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