The article is devoted to the development of an experimental model of the information-diagnostic system of eddy current flaw detection and analysis of its work. A technique for processing experimental data and presenting the results obtained is considered. It is shown that the use of eddy current flaw detection with transducer pulsed excitation mode in combination with digital processing of information signals based on the discrete Hilbert transform can substantially supplement the known eddy current method of NDT by analyzing such signal parameters as the frequency of natural oscillations, peak amplitude value, signal decrement. The proposed technique for processing the signals of an eddy current transducer has been tested using the example of processing the eddy current flaw detection signals in problems of testing an aluminum plate with cracks of different depths
