Investigation of Cross-Coupling in Piezoelectric Transducer Arrays and Correction

International Journal of Engineering and Technology Innovation

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Field Value
 
Title Investigation of Cross-Coupling in Piezoelectric Transducer Arrays and Correction
 
Creator Bybi, Abdelmajid
Grondel, Sébastien
Mzerd, Ahmed
Granger, Christian
Garoum, Mohammed
Assaad, Jamal
 
Subject cross-coupling
piezoelectric transducer arrays
correction method
 
Description Cross-coupling in piezoelectric transducer arrays is an undesirable phenomenon which decreases the performance of these devices. Indeed, when one element of a transducer is driven, it generates parasitic displacement fields at the radiating surfaces of the neighboring elements, which changes the directivity of the array. The objective of this paper is to investigate the cross-coupling effects on the piezoelectric transducer arrays performance and to propose solutions to reduce this parasitic phenomenon. In this context, it is demonstrated that a filling material having high mechanical losses contributes to the reduction of cross-coupling. In addition to this, a procedure of active cancellation of cross-coupling is successfully tested in the case of two transducer arrays vibrating in the transverse mode for the first prototype and thickness mode for the second one. Finally, the ability of the method is demonstrated even when the displacement at the radiating surface of the transducer array is not uniform.
 
Publisher Taiwan Association of Engineering and Technology Innovation
 
Date 2019-09-10
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier http://ojs.imeti.org/index.php/IJETI/article/view/4191
 
Source International Journal of Engineering and Technology Innovation; Vol 9 No 4 (2019); 287-301
2226-809X
2223-5329
 
Language eng
 
Relation http://ojs.imeti.org/index.php/IJETI/article/view/4191/869
http://ojs.imeti.org/index.php/IJETI/article/view/4191/899
 
Rights Copyright (c) 2019 Abdelmajid Bybi, Sébastien Grondel, Ahmed Mzerd, Christian Granger, Mohammed Garoum, Jamal Assaad
http://creativecommons.org/licenses/by-nc/4.0
 

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