10.14489/td.2017.08.pp.026-033

2017, 08 August

DOI: 10.14489/td.2017.08.pp.026-033

Danilov V. N., Voronkova L. V.
JUST ABOUT THE PHYSICAL BASICS OF ULTRASONIC TRANSDUCER PHASED ARRAY IN SIMPLE TERMS. Patr 2
(pp. 26-33)

Abstract. Features of the influence of the acoustic delay on the signal shape normal and angle beam probes with a linear phased array This is the second article of a series of publications on transducers with phased array (TPA), in which virtually no formulas are given. It gives a simple description of the physical basics of operation of such transducers, peculiarities of forming of signals of normal and angle PFR with linear arrays in the presence of acoustic delays that affect their performance. The article, focused on the specialists of all skill levels, is shown the effect of a change in amplitude of the emitted TPA signal along the acoustic axis, the shape of the directivity characteristic , the size of the near zone and so one.

Keywords: angle linear transducer, phased array, acoustic delay, focus distance, directivity characteristic, the angle of entry, of the piezoceramic plates, the acoustic axis.

+ - About the Authors Click to collapse

V. N. Danilov, L. V. Voronkova (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.

+ - References Click to collapse

1. Voronkov I. V., Voronkova L. V., Danilov V. N. (2013). Transducers with phased arrays. Moscow: Izdatel'skii dom «Spektr». [in Russian language]
2. Danilov V. N., Voronkova L. V. (2015). Fundamentals of the theory and application of some aspects of the phased array transducers. Moscow: Izdatel'skii dom «Spektr». [in Russian language]
3. Danilov V. N., Voronkova L. V. (2017). Simple explanati on the physical fundamentals of the operation of transducers with phased arrays. Part 1. Features of the formation of the signal of a linear converter with a phased array. Kontrol'. Diagnostika, (6), pp. 26-33. doi: 10.14489/td.2017.06.pp.026-033 [in Russian language]
4. Danilov V. N. (2015). About some features of formation of signals and definition of the size of a near field for a normal probes with piezoelectric plates and phased arrays. Part 2. Kontrol'. Diagnostika, (5), pp. 18-26. doi: 10.14489/td.2015.05.pp.018-026 [in Russian language]
5. Klyuev V.V. (Ed.), Ermolov I. N., Lange Iu. V. (2006). Nondestructive testing. Handbook. In 8 volumes. Vol. 3. Ultrasonic inspection. 2nd Ed. (revised and complemented). Moscow: Mashinostroenie. [in Russian language]

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