Maddox, B;
Cohen, Y;
Renzoni, F;
(2022)
Through-Skin Pilot-Hole Detection and Localisation with a Mechanically-Translatable Atomic Magnetometer.
Applied Physics Letters
, 120
(1)
, Article 014002. 10.1063/5.0081274.
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Abstract
We demonstrate through-skin electromagnetic induction imaging of pilot-holes in an aluminum block concealed by a 0.41 mm thick aluminum shield with a 1.49 kg mechanically translatable radio frequency atomic magnetometer. The pilot-holes are identified and localized with submillimeter accuracy both with and without the Al shield. We utilize a dual-frequency technique to isolate the image of the target while removing the effect of the shielding from the image. Imaging accuracy is shown to be robust in a range of different operating conditions and immune to the effect of a thermal insulator between the shielding and the target. The approach introduced here finds direct application in aircraft wing manufacture and is competitive with existing approaches.
| Type: | Article |
|---|---|
| Title: | Through-Skin Pilot-Hole Detection and Localisation with a Mechanically-Translatable Atomic Magnetometer |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1063/5.0081274 |
| Publisher version: | https://doi.org/10.1063/5.0081274 |
| Language: | English |
| Additional information: | © 2022 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http:// creativecommons.org/licenses/by/4.0/). https://doi.org/10.1063/5.0081274 |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10141053 |
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