1. An inspection system to detect imperfections in materials comprising: at least one imperfection detection sensor with an output, said output comprising at least in part imperfection signals in a time-varying electrical form; at least one computer having at least one imperfection detection interface, wherein said output is normalized and decomposed in frequency and is in communication with the computer, and wherein the computer converts the frequency decomposed imperfection signals to a digital format; at least one memory storage for the computer, wherein said output can be stored; and a program, said program being configured to operate on said converted digital signals, wherein said operation evaluates and/or manages said converted digital signals.