This work verifies and validates the calibration in a marine geophone by
means of a hyperbaric chamber before and after the pressure underwater laboratory
test. The objective is to characterise the transfer function according to the
frequency of coupling between the geophone and the sediment. It is possible to observe
the geophone coupling variations through the sediment after the test inside
the water pressure at the equivalent of 200 metres depth.
Roset, F.; Nogueras, M.; Garcia Benadí, A. Underwater seismometer validation. "Instrumentation viewpoint", 19 Novembre 2009, núm. 8, p. 29.