In the diploma project, an eddy current device for controlling aircraft elements - non-separable riveted joints of aluminum sheets was developed, using a multi-differential type eddy current transducer as a sensor.
The project consists of three sections. The first section considers the physical foundations of eddy current flaw detection and the features of riveted joints of aluminum sheets as objects of non-destructive testing. The features of using eddy current non-destructive testing to detect cracks in riveted joints of aluminum sheets were analyzed, the results of a review of known eddy current non-destructive testing tools used to control aircraft during manufacture and operation were presented, and the research problem was formulated. In the second section, a structural diagram of the eddy current device was developed, the eddy current transducer signals were calculated, the element base for the implementation of electrical schematic diagrams was substantiated, and their description was given. The third section presents the results of the eddy current converter signal processing process and the evaluation of their information parameters. A general model of the converter signals is presented, a modeling program is developed in the Matlab environment, and the results of computer model experiments with the converter signal models taking into account the ADC bit depth are presented.
Research advisor: Y.Kuts
