File:EM-calibration-setup-with-the-microphone-suspended-above-a-foam-sample.jpg

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English: EM calibration setup with the microphone suspended above a foam sample. Foam samples, the oscilloscope, and the frequency generator are located on the foldup table. Not shown are a ring weight that was placed around the perimeter of the foam sample to minimize vibration and foam sheets that were placed beneath the acoustic tube to dampen amplitude of reflected acoustic energy.
Date
Source Stephen A. Drake et. al. "A low-cost acoustic permeameter", Geoscientific Instrumentation, Methods and Data Systems doi:10.5194/gi-6-199-2017
Author Stephen A. Drake, John S. Selker, Chad W. Higgins
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(Reusing this file)		 This work is licensed under a Creative Commons Attribution 3.0 Unported License. To view a copy of this license, visit https://creativecommons.org/licenses/by/3.0/

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current09:52, 20 March 2020Thumbnail for version as of 09:52, 20 March 20202,067 × 1,550 (1.36 MB)Sohmen (talk | contribs)Uploaded by the NOA Upload Tool

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