Apparatus and method for measuring soil gases

Details Apparatus and method for measuring soil gases Apparatus and method for measuring soil gases

G - Physics

01

N

G01N 1/22 (2006.01) G01N 30/88 (2006.01) G01N 33/24 (2006.01)

Patent

CA 2547413

A probe for sampling a soil gas comprising a body having a cavity to which is connected an inlet and an outlet, and a gas permeable waterproof membrane wrapped around the body and sealing the cavity. The membrane allows the soil gas to flow across the membrane from the soil to the cavity. A method for measuring soil gas diffusivity comprising the step of circulating in a closed loop a carrier gas substantially at an atmospheric pressure through a diffusion gas sampling probe inserted in the soil and through a sensor used for the measurement of a concentration of at least a component of the soil gas.

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