METHOD OF CALIBRATING AN INFRASOUND DETECTION APPARATUS AND SYSTEM FOR CALIBRATING THE INFRASOUND DETECTION APPARATUS
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United States of America Patent
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Jun 11, 2015
app pub date -
Aug 15, 2014
filing date -
Dec 5, 2013
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Abstract
In order to calibrate an infrasound detection apparatus including a sound pressure measurement device, a background noise removal device, and a ground vibration velocity measurement device, a step of generating an artificial seismic wave using an artificial seismic source at a position that is spaced a specific distance from the sound pressure measurement device, a step of measuring an atmospheric pressure change and a ground vibration velocity caused by the artificial seismic wave, and a step of comparing the atmospheric pressure change value measured by the sound pressure measurement device with a theoretical atmospheric pressure change value may be performed.
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