Nonlinear ultrasonic phased array imaging

J. N. Potter; A. J. Croxford; P. D. Wilcox

doi:10.1103/PhysRevLett.113.144301

Nonlinear ultrasonic phased array imaging

J. N. Potter^*, A. J. Croxford, P. D. Wilcox

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

This Letter reports a technique for the imaging of acoustic nonlinearity. By contrasting the energy of the diffuse field produced through the focusing of an ultrasonic array by delayed parallel element transmission with that produced by postprocessing of sequential transmission data, acoustic nonlinearity local to the focal point is measured. Spatially isolated wave distortion is inferred without requiring interrogation of the wave at the inspection point, thereby allowing nonlinear imaging through depth.

Original language	English
Article number	144301
Number of pages	5
Journal	Physical Review Letters
Volume	113
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.113.144301
Publication status	Published - 3 Oct 2014

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10.1103/PhysRevLett.113.144301

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title = "Nonlinear ultrasonic phased array imaging",

abstract = "This Letter reports a technique for the imaging of acoustic nonlinearity. By contrasting the energy of the diffuse field produced through the focusing of an ultrasonic array by delayed parallel element transmission with that produced by postprocessing of sequential transmission data, acoustic nonlinearity local to the focal point is measured. Spatially isolated wave distortion is inferred without requiring interrogation of the wave at the inspection point, thereby allowing nonlinear imaging through depth.",

author = "Potter, {J. N.} and Croxford, {A. J.} and Wilcox, {P. D.}",

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N2 - This Letter reports a technique for the imaging of acoustic nonlinearity. By contrasting the energy of the diffuse field produced through the focusing of an ultrasonic array by delayed parallel element transmission with that produced by postprocessing of sequential transmission data, acoustic nonlinearity local to the focal point is measured. Spatially isolated wave distortion is inferred without requiring interrogation of the wave at the inspection point, thereby allowing nonlinear imaging through depth.

AB - This Letter reports a technique for the imaging of acoustic nonlinearity. By contrasting the energy of the diffuse field produced through the focusing of an ultrasonic array by delayed parallel element transmission with that produced by postprocessing of sequential transmission data, acoustic nonlinearity local to the focal point is measured. Spatially isolated wave distortion is inferred without requiring interrogation of the wave at the inspection point, thereby allowing nonlinear imaging through depth.

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DO - 10.1103/PhysRevLett.113.144301

M3 - Article (Academic Journal)

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SN - 0031-9007

VL - 113

JO - Physical Review Letters

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Nonlinear ultrasonic phased array imaging

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TWO-DIMENSIONAL ARRAYS FOR THE QUANTITATIVE CHARACTERISATION OF COMPLEX DEFECTS

Professor Anthony J Croxford

Professor Paul D Wilcox

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Nonlinear ultrasonic phased array imaging

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TWO-DIMENSIONAL ARRAYS FOR THE QUANTITATIVE CHARACTERISATION OF COMPLEX DEFECTS

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Professor Anthony J Croxford

Professor Paul D Wilcox

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