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- Title
Object Composition Identification by Measurement of Local Radio Frequency Magnetic Fields with an Atomic Magnetometer.
- Authors
Zipfel, Jake D.; Santosh, Srikant; Bevington, Patrick; Chalupczak, Witold
- Abstract
Proof of principle of object composition identification based on inductive measurements with an atomic magnetometer has been demonstrated in highly engineered laboratory conditions. Progress in the development of portable miniaturised magnetometers has encouraged on the parallel development of the measurement technologies involving this sensor, in particular concepts that would enable operation in complex test scenarios. Here, we explore the problem of material identification in the context of measurements performed with variable distance between the object and the primary radio-frequency field source and sensor. We identify various aspects of the measurement affected by variable distance and discuss possible solutions, based on the signal phase analysis, a combination of frequency and angular signal dependencies and the implementation of a pair of excitation coils.
- Subjects
RADIO frequency measurement; MAGNETIC fields; MAGNETOMETERS; MAGNETIC induction tomography; PROOF of concept
- Publication
Applied Sciences (2076-3417), 2022, Vol 12, Issue 16, pN.PAG
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app12168219