Abstract

CALAS, H et al. Simulation of bessel beam transducers using impulse response technique. Rev. mex. fis. [online]. 2006, vol.52, suppl.2, pp.86-88. ISSN 0035-001X.

In this paper, a new method for designing a Bessel transducer is described. The method relies on the comparison between the transducer surface excitation and the theoretical Bessel function. This make it posible to select the right kerf between successive rings and obtaining the best characteristics in the radiation pattern. The field simulation is accomplished by means of the impulse response technique. The proposed method is applied to a three-ring transducer and compared with experimental results.

Keywords : Ultrasonic; Bessel transducer; nondiffracting beams.