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arXiv · 2008.11801

Acoustic Shadow Moiré Interference: Experimental Proof

Ibrahim Abdel-Motaleb·Kiran Vemula
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Abstract

Shadow moiré techniques are developed for optical waves to image 3D objects to determine their surface topology. In this paper we prove experimentally that also ultrasound can be used to create moiré images. Using moiré techniques will enhance ultrasound applications, such as medical imaging and material characterization. In our experiment, we used a grating mask made of aluminum, an ultrasound source in the megahertz range, and an acousto-optic detector to create and capture Talbot images for the grating. Talbot images are captured using and acousto-optic camera. The captured image was created from ultrasound waves with λ=0.43 mm. The fringes of the images proved that they are shadow moiré fringes.

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Ibrahim Abdel-Motaleb, Kiran Vemula. 2020-08-26. Acoustic Shadow Moiré Interference: Experimental Proof. https://arxiv.org/abs/2008.11801

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