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A high amplitude, time reversal acoustic non-contact excitation (trance)
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/content/asa/journal/jasa/134/1/10.1121/1.4809773
2013-06-07
2014-10-23

Abstract

This paper describes the principle behind a high amplitude non-contact acoustic source based on the principle of time reversal (TR), a process to focus energy at a point in space. By doing the TR in an air filled, hollow cavity and using a laser vibrometer in the calibration of the system, a non-contact source may be created. This source is proven to be more energetic than an off the shelf focused ultrasound transducer. A scaled up version of the proposed source has the potential to allow nondestructive evaluation processes that require high amplitude, such as nonlinear elastic wave spectroscopy (NEWS) techniques.

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Scitation: A high amplitude, time reversal acoustic non-contact excitation (trance)
http://aip.metastore.ingenta.com/content/asa/journal/jasa/134/1/10.1121/1.4809773
10.1121/1.4809773
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