List of the apparatus for the seismic exploration of the ground under -

摘要

Apparatus incorporated of shocks to the seismic exploration of the ground under - / p & & p & the apparatus comprises a rigid plate of the target 15 which can be raised on the ground, a cylinder 18 is open downwards, the means 29, 48, 26, 31, 32, 37 carried by a vehicle 10 for supporting the cylinder to the - the top of the plate 15, so that it can rotate about two horizontal axes which are mutually orthogonal and 44, a striker mass 24 can slide axially in the cylinder 18, means for rotating the cylinder 18 about said axes so that its longitudinal axis is placed on a trajectory selected 40, 98, 99, and means 20 for accelerate the mass 24 of the top down so that it strikes the target plate 15 at the end of said trajectory.