Design and preliminary set-up of an experimental apparatus for continuous measurement of soil – gas pressure fluctuations in active seismogenic environments

A new experimental apparatus has been designed to measure pressure fluctuations in soil – gas movements. The experimental apparatus builds on existing theoretical solutions for analyzing spherical air flux in soil and allows for consistent measurement every 0.2 seconds. Using this method, tests to measure gas pressure fluctuations in both laboratory and field settings were conducted, showing a high sensitivity to even slight variations of pressure and micro-cycles. Data analyses suggests that this experimental apparatus significantly improves the capability to understand and comprehend degassing processes in seismogenic and volcanic environments, as well as the meteorological phenomena involved.