A measurement system based on subminiature eddy-current transducers is developed for local study of defects in aluminum-magnesium alloy plates. A modified Delianna filter is made which can greatly enhance the signal-to-noise ratio. A dependence of the response of the eddy-current transducer on flaws in the form of hidden slits and apertures inside the slabs is derived for excitation coil frequencies of 300–700 Hz.
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Translated from Izmeritel’naya Tekhnika, No. 4, pp. 46–49, April, 2017.
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Dmitriev, S.F., Ishkov, A.V., Katasonov, A.O. et al. Measurement System for Studying Flaws in Alloy Slabs by Means of Subminiature Eddy-Current Transducers. Meas Tech 60, 372–375 (2017). https://doi.org/10.1007/s11018-017-1204-5
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DOI: https://doi.org/10.1007/s11018-017-1204-5