Characterization of the Sound Field Generated by an Ultrasonic Transducer in a Solid Medium by Rayleigh-Sommerfeld Back-Propagation of Bulk Acoustic Waves Measured with Double-Pulsed TV Holography

Trillo, Cristina; Doval, Ángel F.; Fontán, Lidia M.; Fernández, José Luis Fernández; Rodríguez-Gómez, Pablo; Vázquez, José Carlos López

doi:10.1007/978-3-642-36359-7_23

Cited by 1 publication

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“…Some preliminary results of the applications herein explained in detail were presented at the Fringe 2013 Conference. [29] The validation experiments indicate that our approach may constitute a relevant alternative to solve the problem of characterizing ultrasonic transducers when coupled to metals or other non-transparent solids.…”

Section: Introductionmentioning

confidence: 90%

Characterization of Transducer Performance and Narrowband Transient Ultrasonic Fields in Metals by Rayleigh-Sommerfeld Backpropagation of Compression Acoustic Waves Measured with Double-Pulsed Tv Holography

Trillo¹,

Doval²,

Fernández³

et al. 2014

International Journal of Optomechatronics

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This article presents a method aimed at the characterization of the narrowband transient acoustic field radiated by an ultrasonic plane transducer into a homogeneous, isotropic and optically opaque prismatic solid, and the assessment of the performance of the acoustic source. The method relies on a previous technique based on the full-field optical measurement of an acoustic wavepacket at the surface of a solid and its subsequent numerical backpropagation within the material. The experimental results show that quantitative transversal and axial profiles of the complex amplitude of the beam can be obtained at any plane between the measurement and excitation surfaces. The reconstruction of the acoustic field at the transducer face, carried out on a defective transducer model, shows that the method could also be suitable for the nondestructive testing of the performance of ultrasonic sources. In all cases, the measurements were performed with the transducer working under realistic loading conditions.

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Section: Introductionmentioning

confidence: 90%