Analytical modelling and simulations for high-frequency eddy current testing with planar spiral coils
Source abstract
Abstract
An analytical model of eddy current field under sinusoidal excitation of a planar spiral coil is established, taking into account the gap between the turns of a spiral coil and displacement current. The developed model is firstly validated by FEM and experiments, and then was applied to investigate the influences of displacement current on eddy current signal. The results show that the increase of the excitation frequency and the permittivity of the specimen, the influence of the displacement current increase as well for thin samples. Basically, high-frequency eddy current testing allows for the measurement of relative permittivity of thin samples.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Non-Destructive Testing Techniques · Welding Techniques and Residual Stresses · Ultrasonics and Acoustic Wave Propagation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
China University of Mining and Technology
Funding
National Natural Science Foundation of China
References (34)
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