PT - JOURNAL ARTICLE AU - Paweł, PTAK TI - TESTING INDUCTIVE SENSOR FOR MEASURING THICKNESS OF TOP LAYERS DP - 2014 Jul 1 TA - Trends in education PG - 128--131 VI - 7 IP - 1 IS - 18058949 AB - Article presents results of research an inductive electromagnetic transducer, which allow detection and location of subsurface defects and their occurrence in examined top layers. Measurements were performed for the selected signal operation of inductive transducer choosing the frequency, sensitivity and accuracy. Accurate measurement of thickness of protective layer was determined by means of Fischer precision instruments.