Penetrating power of resonant electromagnetic induction imaging

Articles you may be interested in Electromagnetic induction imaging with a radio-frequency atomic magnetometer Appl. Experimental demonstration of the equivalence of inductive and strongly coupled magnetic resonance wireless power transfer Appl. The possibility of revealing the presence and identifying the nature of conductive targets is of central interest in many fields, including security, medicine, industry , archaeology and geophysics. In many applications, these targets are shielded by external materials and thus cannot be directly accessed. Hence, interrogation techniques are required that allow penetration through the shielding materials, in order for the target to be identified. Electromagnetic interrogation techniques represent a powerful solution to this challenge, as they enable penetration through conductive shields. In this work, we demonstrate the power of resonant electromagnetic induction imaging to penetrate through metallic shields (1.5-mm-thick) and image targets (having conductivities σ ranging from 0.54 to 59.77 MSm −1) concealed behind them. © 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license