Yu. Ya Reutov
A SURFACE EDDY CURRENT TRANSDUCER FOR METAL LOSS DETECTION
DOI: 10.17804/2410-9908.2022.6.016-024 The paper reports the results of an experimental study of the work of a surface eddy current transducer in terms of detecting and testing metal loss under one-sided access conditions. The transducer consists of an exciting coil and a microchip Hall-effect transducer placed in it. The phase shift of the voltage from the Hall probe output relative to the current in the exciting coil, measured by a digital phase meter, is used as an informative parameter. The experiments were carried out on a package of duralumin plates. It is shown that, when the thickness of the duralumin test object is 12.5 mm, a fairly linear transformation of metal loss from 0 to 50 % at a frequency of 640 Hz is possible. The results can be useful in the development of devices for detecting metal corrosion losses in non-ferromagnetic objects with a thickness of tens of millimeters under one-sided access conditions.
Acknowledgments: The work was carried out within the framework of the state assignment from the Russian Min-istry of Education and Science, theme: Diagnostics, No. 122021000030-1. Keywords: eddy current transducer, microchip Hall-effect transducer, metal loss assessment, metal corrosion References:
- Gusev E.A., Korolev M.V., Karpel’son A.E., Sosonin F.R. Pribory nerazrushayushchego kontrolya tolshchiny v mashinostroenii [Instruments for Nondestructive Thickness Tests in Machine Building]. Moscow, Mashinostroenie Publ., 1993. (In Russian).
- Bezlyud'ko G.Y., Dolbnya E.V., Leshchenko N.G., Muzhitskii V.F. & Remezov V.B. Portable Electromagnetic-Acoustic Thickness Meters (EMAT). Russian Journal of Nondestructive Testing, 2004, vol. 40, pp. 239–245. DOI: 10.1023/B:RUNT.0000043672.63881.ca.
- Suchkov G.M. The capacities of modern EMA thickness gages. Russian Journal of Nondestructive Testing, 2004, vol. 40, No. 12, pp. 801–807. DOI: 10.1007/s11181-005-0109-6.
- Agzamova P.A., Volkov A.V., Gobov Yu.L., Grammatin A.V., Reutov Yu.Ya. Magnetic flaw detector. Russian Federation Utility Model Patent No. 119885, 2012. (In Russian).
- Dorofeev A.L. Nerazrushayushchie ispytaniya metodom vikhrevykh tokov [Non-destructive testing by the eddy currents methods]. Moscow, Oborongiz Publ., 1961, 158 p. (In Russian).
- Shkarlet Yu.M. In: Nerazrushayushchiye metody kontrolya materialov i izdelii: sbornik [Non-destructive testing of materials and products: collection, S.T. Nazarova, ed.]. Moscow, ONTIPRIBOR Publ., 1964, pp. 382–396. (In Russian).
- Lammeraner Y., Stafl M. Vikhrevye toki [Eddy currents, Czhech transl.]. Moscow, Leningrad, Energiya Publ., 1967, 208 p. (In Russian).
- Gerasimov V.G., Ostanin Yu.Ya., Pokrovsky A.D. etc. Nerazrushayushchiy control kachestva izdeliy elektromagnitnymi metodami [Non-destructive quality control of products by electromagnetic methods]. Moscow, Energiya Publ., 1978, 215 p. (In Russian).
- Reutov Yu.Ya. Laid-on Eddy Current Transducer Field Penetration Depth into a Studied Object. Electrichestvo, 2018, No. 4, pp. 50–57. DOI: 10.24160/0013-5380-2018-4-50-57. (In Russian).
- Chechernikov V.I. Magnitnye izmereniya [Magnetic measurements]. Moscow, Mosk. Gos. Univ. Publ., 1969, 386 p. (In Russian).
- Available at: www.sentron . ch
- Reutov Yu.Ya. A Peculiarity of the Magnetization of a Ferromagnet by An Alternating Field. Diagnostics, Resource and Mechanics of materials and structures, 2020, vol. 6, pp. 35–47. DOI: 10.17804/2410-9908.2020.6.035-047. Available at: https://dream-journal.org/DREAM_Issue_6_2020_Reutov_Yu.Yu._035_047.pdf
- Nerazrushayushchiy control [Non-destructive testing, vol. 2, ed. by V.V. Klyuev]. Moscow., Mashinostroenie Publ., 2005, 688 p. (In Russian).
Article reference
Ya Reutov Yu. A Surface Eddy Current Transducer for Metal Loss Detection // Diagnostics, Resource and Mechanics of materials and structures. -
2022. - Iss. 6. - P. 16-24. - DOI: 10.17804/2410-9908.2022.6.016-024. -
URL: http://eng.dream-journal.org/issues/content/article_382.html (accessed: 12/02/2024).
|