A Theoretical Study of the Transient Behaviour of Ultrasonic Transducers in Linear Arrays

摘要: It is well recognized that in classical echographic systems using transducers arrays, the behaviour of elementary transducer inside array most unknown, or at least not understood characteristics system. Even if for linear arrays a bidimensional model may be retained describing transducers, transient affected very complex manner by number excited modes and coupling effects between adjacent transducers. Recently, several authors {l,2,3} have pointed importance width to thickness ratio each individual block ceramics used array. However, theoretical study taking account its real environment specially through propagative medium difficult achieve. We had presented 10th I.S.A.I. tentative analog electrical simulation problem {4}. But we met lot difficulties realization adequate transformers preferred go on this research work numerical analysis. want show here interest our relatively simple attain harmonic structures.