Pulsed Eddy Current Probe with Magnetoresistive Sensors for Non-destructive Testing of Tubes

U okviru ovog završnog rada, iznesena je teorijska podloga konvencionalnih metoda ispitivanja vrtložnih struja te opisan princip rada sondi s magnetootporničkim senzorima za nerazorno ispitivanje cijevi. Objašnjena je motivacija za korištenje metoda s impulsno pobuđenim vrtložnim strujama ispred konvencionalnih metoda, te je objašnjen njihov međusobni odnos. Nadalje, objašnjen je i opisan postupak razvoja prototipa potrebnog mjernog sustava u tehnologiji izrade tiskanih pločica. Osim rezultata dizajniranog prototipa , na kraju su izneseni i nedostaci opaženi u procesu izrade kako bi se u budućnosti moglo pristupiti izradi poboljšane verzije mjernog sustava.Within this Bachelor's thesis, the theoretical background of conventional eddy current testing methods were described and the principle of probes with magnetoresistive sensors for non-destructive testing of tubes was presented. The motivation to use the method with pulsed eddy current probe in front of conventional methods has been intoduced and their mutual relationship was explained. In addition, a detailed description of the process of developing a prototype of the required measuring system in the technology of the printed circuit board has been described in detail. Except the results of the designed prototype, disadvantages were noted in the process of production so that an improved version of the measuring system could be developed in the future