Eddy-current testing detects conductive microbeads on non-conductive substrates, indicating potential applications in material analysis.
We present an eddy-current test (ECT) method for detecting conductive microbeads on a non-conductive substrate. A Helmholtz coil is used to generate an exciting magnetic field. The magnetic fields, generated by eddy-currents in a Pb-Sn microbead, are detected by a spin-valve giant magnetoresistive (SV-GMR) sensor. The experimental results are compared to an analytical solution for the magnetic field over the microbead. Early results for the detection of a grid of microbeads are also presented.
No takes yet. Share an insight, caveat, or question.
山田 et al. (2006) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: