Modelling of a Differential Sensor in Eddy Current Non-Destructive Evaluation
Konferensbidrag (offentliggjort, men ej förlagsutgivet), 2011

Interaction between the probe and a defect in eddy current (EC) non-destructive evaluation (NDE) is studied. In this work a differential sensor is considered and the problem regarded here is problem 8 from the testing of electromagnetic analysis methods (TEAM) workshops. The truncation, referring to the position of the outer boundaries of the finite element model, is evaluated in three dimensions (3D) by the use of an analysis in axial symmetry. The results show that it is reliable to use a model size where the positions of the outer boundaries are put where the magnetic vector potential has dropped to 1 % of its maximum value. The axisymmetric model in is compared to an analytical model with good results.

Calculation of impedance

Non-destructive evaluation

Differential sensor

Eddy current

Författare

Anders Rosell

Chalmers, Material- och tillverkningsteknik, Avancerad oförstörande provning

Gert Persson

Chalmers, Material- och tillverkningsteknik, Avancerad oförstörande provning

COMSOL Conference 2011, Stuttgart, http://www.comsol.se/papers/10960/

Ämneskategorier

Materialteknik

Styrkeområden

Materialvetenskap

ISBN

978-0-9839688-0-1

Mer information

Skapat

2017-10-06