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6.
LIMITS AND CONDITIONS OF USE
The principle used in GAS TRACKER is the transmission of an acoustic signal, carried by the
gas contained in the pipeline.
This signal results in a vibratory phenomenon in contact with the PE and propagates to the
surface. The propagation is therefore closely linked to the nature of the soil and its compaction.
If cavities interfere between the PE pipe and the surface, the signal will not be able to propagate
normally, as will a "poorly compacted" soil.
The surface of the pavement is important and reception on an earthy or rocky ground is linked
to the quality of the coupling between the acquisition sensor and the ground. Optimal reception
is obtained on macadam or concrete.