Method and apparatus for inducing seismic shear waves in the earth and for seismic surveying

摘要

Method for inducing seismic waves, characterized in that said waves can be induced in an elastic body of generally flat surface and that is composed by the coupling of a member to the flat surface, and by the oscillation of a member in a plane generally parallel to the surface, for a plurality of times. (Machine-translation by Google Translate, not legally binding)