10.14489/td.2015.02.pp.043-050

2015, 02 February

DOI: 10.14489/td.2015.02.pp.043-050

Danilov V.N.
THE FORMULAS OF AN ACOUSTIC CHANNEL OF THE ANGLE BEAM PROBE FOR A FAR FIELD ZONE
(pp. 43-50)

Abstract. The formulas of an acoustic channel of the angle beam probe for different reflectors in a far field zone being more common are submitted than known formulas prof. I. N. Ermolov, and permitting to execute calculations of signals at a repositioning of probes on a surface of the control concerning reflectors. At an estimation of maximum of amplitudes of echo signals for reflectors located on large enough deleting from probes, the results of calculations coincide with the known ones. In the presented formulas the features of influencing on amplitude of an echo signal of a divergence of a wavefront set of a reflected wave in the main and additional planes earlier has not been considered.

Keywords: an acoustic channel, angle beam probe, main and additional plane, shear wave, angle of probe, nearing geometrical acoustic method, method of a fixed phase, angle reflector, flat bottom hole, cylindrical reflector, transformation coefficient.

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V. N. Danilov
PJSC RPA “CNIITMASH”, Moscow, Russia. E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

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