IMAGING OF AN ULTRASONIC WAVE REFLECTED BY AN OBJECT USING AN ACOUSTIC LENS IN AIR

Sai Hou, Buren Mandula, Wei Quan, Sahdev Kumar, Hideo Furuhashi

Abstract

We have investigated the imaging of an ultrasonic wave reflected by an object using an acoustic lens in air. The reflected ultrasonic wave is focused by a spherical acoustic lens on an ultrasonic array sensor having 32 ultrasonic receivers. We have designed and manufactured the acoustic lens, which has a diameter of 25 cm. The imaging of the ultrasonic wave is demonstrated experimentally. This approach does not require delay-and-sum operation and can be operated using a small amount of memory. Therefore, load calculation is decreased.

Keywords

imaging, ultrasonic, array sensor, range sensor, acoustic lens

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IMEKO-WC-2015-TC10-236.pdf

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IMEKO TC

TC10 - Measurement for Diagnostics, Optimization and Control

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