Przegląd Elektrotechniczny

Oldest magazine of Polish electrician. It appears since 1919.

strona w języku polskim english page

No/VOL: 09/2022 Page no. 296

Authors: Bogusław Gruszczyński , Rafał Wojciechowski :

Title: Design and synthesis of the magnetic circuit of a differential eddy current transducer for non-destructive testing

Abstract: This paper discusses issues concerning the construction and optimal design of an eddy current transducer for detecting surface defects in objects made of conductive materials. The optimisation task for the system under consideration is defined. A three-dimensional field model of the transducer was developed, allowing simulation studies of the considered design to be carried out. An optimisation of the magnetic circuit was carried out, taking as an optimisation criterion increasing the sensitivity of the system and its ability to detect surface defects. Using data on the simulationoptimised magnetic circuit design, a prototype eddy current transducer was built. The prototype was subjected to tests to verify the systems correct operation. Tests were carried out using a specially prepared test facility.

Key words: non-destructive testing, eddy current transducer, differential inductive transducer, eddy currents