Pupil function splitting method in calculating acoustic microscopic signals for elastic discontinuities

M. Ohno; C. Miyasaka; B. R. Tittmann

doi:10.1016/S0165-2125(00)00049-4

Pupil function splitting method in calculating acoustic microscopic signals for elastic discontinuities

M. Ohno, C. Miyasaka, B. R. Tittmann

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

This paper deals with the output signals of scanning acoustic microscopes observing the elastic discontinuities on sample surface, and presents a new method of calculation. The formulation is based on the angular-spectrum method together with a ray-optical approximation. The key treatment is splitting of the pupil function into two parts. This method clarifies the image-forming factors in acoustic microscopy including large and fine fringes parallel to discontinuities. Calculation for an edge and a metal/ceramic joint showed good agreements with the experimental results.

Original language	English (US)
Pages (from-to)	309-320
Number of pages	12
Journal	Wave Motion
Volume	33
Issue number	4
DOIs	https://doi.org/10.1016/S0165-2125(00)00049-4
State	Published - Apr 2001

All Science Journal Classification (ASJC) codes

Computational Mathematics
General Physics and Astronomy
Applied Mathematics
Modeling and Simulation

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10.1016/S0165-2125(00)00049-4

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abstract = "This paper deals with the output signals of scanning acoustic microscopes observing the elastic discontinuities on sample surface, and presents a new method of calculation. The formulation is based on the angular-spectrum method together with a ray-optical approximation. The key treatment is splitting of the pupil function into two parts. This method clarifies the image-forming factors in acoustic microscopy including large and fine fringes parallel to discontinuities. Calculation for an edge and a metal/ceramic joint showed good agreements with the experimental results.",

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AB - This paper deals with the output signals of scanning acoustic microscopes observing the elastic discontinuities on sample surface, and presents a new method of calculation. The formulation is based on the angular-spectrum method together with a ray-optical approximation. The key treatment is splitting of the pupil function into two parts. This method clarifies the image-forming factors in acoustic microscopy including large and fine fringes parallel to discontinuities. Calculation for an edge and a metal/ceramic joint showed good agreements with the experimental results.

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Pupil function splitting method in calculating acoustic microscopic signals for elastic discontinuities

Abstract

All Science Journal Classification (ASJC) codes

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