What is it about?
A simple method is proposed for measuring the thickness of the rigid porous medium via acoustic waves reflected in the regime of very low frequencies.
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Why is it important?
The advantage of the proposed method is that the measured thicknesses are much greater because the acoustic waves in the regime of the very low frequencies are more penetrating in the medium than the ultrasonic waves.
Read the Original
This page is a summary of: Thickness measurement of rigid porous material through reflected acoustic waves at Darcy's regime, The Journal of the Acoustical Society of America, September 2018, Acoustical Society of America (ASA), DOI: 10.1121/1.5068669.
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