Hidden security threat identification: A reduced order model for the rapid computation of object characterisations
conference contributionposted on 09.04.2020 by B. A. Wilson, P. D. Ledger
Any type of content contributed to an academic conference, such as papers, presentations, lectures or proceedings.
This work presents computational results of a reduced order model for the rapid calculation of conducting object characterisations as a function of frequency in metal detection. Such characterisations are called their spectral signature. We present a brief description of the eddy-current model and the magnetic polarizability tensor (MPT) used for our object characterisations. The transmission problem required for the computation of the MPT and its discretisation is then described followed by a summary of the reduced order model. As an illustration of the capabilities of the approach for characterising realistic objects, we show MPT spectral signatures of a British £1 coin.
- Mathematical Sciences