Inductive Imaging of the Concealed Defects with Radio-Frequency Atomic Magnetometers
We explore the capabilities of the radio-frequency atomic magnetometers in the non-destructive detection of concealed defects. We present results from the systematic magnetic inductive measurement of various defect types in an electrically conductive object at different rf field frequencies (0.4–12...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/19/6871 |
| _version_ | 1797552127977979904 |
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| author | P. Bevington R. Gartman W. Chalupczak |
| author_facet | P. Bevington R. Gartman W. Chalupczak |
| author_sort | P. Bevington |
| collection | DOAJ |
| description | We explore the capabilities of the radio-frequency atomic magnetometers in the non-destructive detection of concealed defects. We present results from the systematic magnetic inductive measurement of various defect types in an electrically conductive object at different rf field frequencies (0.4–12 kHz) that indicate the presence of an optimum operational frequency of the sensor. The optimum in the frequency dependence of the amplitude/phase contrast for defects under a 0.5–1.5 mm conductive barrier was observed within the 1–2 kHz frequency range. The experiments are performed in the self-compensated configuration that automatically removes the background signal created by the rf field producing object response. |
| first_indexed | 2024-03-10T15:55:33Z |
| format | Article |
| id | doaj.art-0d618379893640778f6f67bf9e5d5769 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T15:55:33Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-0d618379893640778f6f67bf9e5d57692023-11-20T15:39:34ZengMDPI AGApplied Sciences2076-34172020-09-011019687110.3390/app10196871Inductive Imaging of the Concealed Defects with Radio-Frequency Atomic MagnetometersP. Bevington0R. Gartman1W. Chalupczak2National Physical Laboratory, Hampton Road, Teddington TW11 0LW, UKNational Physical Laboratory, Hampton Road, Teddington TW11 0LW, UKNational Physical Laboratory, Hampton Road, Teddington TW11 0LW, UKWe explore the capabilities of the radio-frequency atomic magnetometers in the non-destructive detection of concealed defects. We present results from the systematic magnetic inductive measurement of various defect types in an electrically conductive object at different rf field frequencies (0.4–12 kHz) that indicate the presence of an optimum operational frequency of the sensor. The optimum in the frequency dependence of the amplitude/phase contrast for defects under a 0.5–1.5 mm conductive barrier was observed within the 1–2 kHz frequency range. The experiments are performed in the self-compensated configuration that automatically removes the background signal created by the rf field producing object response.https://www.mdpi.com/2076-3417/10/19/6871non-destructive testingmagnetic induction tomographyatomic magnetometer |
| spellingShingle | P. Bevington R. Gartman W. Chalupczak Inductive Imaging of the Concealed Defects with Radio-Frequency Atomic Magnetometers Applied Sciences non-destructive testing magnetic induction tomography atomic magnetometer |
| title | Inductive Imaging of the Concealed Defects with Radio-Frequency Atomic Magnetometers |
| title_full | Inductive Imaging of the Concealed Defects with Radio-Frequency Atomic Magnetometers |
| title_fullStr | Inductive Imaging of the Concealed Defects with Radio-Frequency Atomic Magnetometers |
| title_full_unstemmed | Inductive Imaging of the Concealed Defects with Radio-Frequency Atomic Magnetometers |
| title_short | Inductive Imaging of the Concealed Defects with Radio-Frequency Atomic Magnetometers |
| title_sort | inductive imaging of the concealed defects with radio frequency atomic magnetometers |
| topic | non-destructive testing magnetic induction tomography atomic magnetometer |
| url | https://www.mdpi.com/2076-3417/10/19/6871 |
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