10.14489/td.2017.03.pp.012-025

2017, 03 March

DOI: 10.14489/td.2017.03.pp.012-025

Danilov V. N., Razygraev A. N., Tsukanov M. V.
THE FORMULAS OF AN ACOUSTIC CHANNEL OF THE ANGLE BEAM PROBE UNDER THE ULTRASONIC TESTING OF METAL THROUGH THE CLADDING LAYER
(pp. 12-25)

Abstract. According to the earlier designed model of a shear wave displacement calculation, the formulas of an acoustic channel for several models of reflectors (a side of the cylindrical hole, dihedron, notch, rectangular groove, round flat bottom hole) are constructed in the ultrasonic testing of metal through a layer, which is radiated the angle beam probe through a cladding layer with under as contrasted to base metal speed of shear waves. The method of a fixed phase in a farfield region obtains the approximated (asymptotic) formulas of an acoustic channel used in calculations. The calculations show the effect of the cladding layer on the amplitude of the signal detected by an inclined signal transmitter for the reflector of a side cylinder type. The formulas of acoustic path model were generalized to the case of welding in the form of two layers.

Keywords: angle beam probe, shear wave, angle of probe, plating, metal, acoustic channel, reflector, ultrasonic technique, thickness of a layer, surface of the control, beam axis.

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V. N. Danilov, A. N. Razygraev, M. V. Tsukanov (JSC “RPA “CNIITMASH”, Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

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