Another important aspect is related to transportation (roads,
railways and ships), where sometimes the equipment is
subjected to excessive vibrations, fallings, collisions and other
situations inherent to loadings and unloading procedures.
These situations must be considered before putting the
equipment in operation and in some cases another tests must be
performed.
Traditionally the analysis of results for these two techniques
(FRA and Impedance) is made visually, qualitatively, in a
comparative mode.