Electromagnetic-acoustic method of ultrasonic pulse excitation and reception in metal products

S. Yu Plesnetsov National technical university “Kharkiv Polytechnic Institute”, 2 Kirpichova str., Kharkiv, 61002, Ukraine.
G. M. Suchkov National technical university “Kharkiv Polytechnic Institute”, 2 Kirpichova str., Kharkiv, 61002, Ukraine.

Keywords: magnetic field, electromagnetic field, electrically conductive material, ferromagnetic material, ultrasonic oscillations, electromagnetic-acoustic transducer

Abstract

The problem of the main factors infl uence on the electro-magnetic energy to ultrasound conversion in test-ing of electrically conductive or ferromagnetic materials is considered.

The necessity to provide the polarizing magnetic fi eld induction maximum value and the maximum current in the electromagnetic-acoustic transducer high-frequency coil is shown.

A converter for co-radiation and reception of pulses of ultrasonic vibrations has been developed and tested, providing useful information signal amplitude of up to 50 dB.

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References

И.Н. Ермолов, Ю.В. Ланге. Неразрушающий контроль: Справочник: В 7 т. Под общ. ред. В.В. Клюева. Т.3: Ультра-звуковой контроль, Машиностроение, М. (2008), 864 с.

И. Н. Ермолов. Теория и практика уль-тразвуковогоконтроля. Машинострое-ние, М. (1981), 240 с.

К.В. Судакова, И.Л. Казюкевич. О повышении эффективности контроля каче-ства металлургической продукции. В: В мире неразрушающего контроля. № 3 (2004), с. 8-10.

Г.М. Сучков. Современные возможно-сти ЭМА дефектоскопии. В: Дефектос-копия. № 12 (2005), с. 24-39.

G.M. Suchkov, O.N. Petrishchev, I.V. Cherednichenko, V.V. Fеdorov, A.V. Desyatnichenko, S.V. Khashchina, M.S. Maslova. A Generator of Probing Pulses for EMA Flaw Detectors. In: Russian Journal of Nondestructive Testing, Vol.48, No.9 (2012), p. 537–540.