MODE OF EXCITING SEISMIC WAVES AND ARRANGEMENT FOR ITS REALIZATION Russian patent published in 2007 - IPC G01V1/02 

FIELD: the invention refers to seismic prospecting of minerals with none explosive sources and be applied at carrying out works in marine seismic prospecting and also at carrying out works on land in conditions of transit zone and limited shallow waters.

SUBSTANCE: Energy in the shape of a powerful impulse is fed on the solenoids of an electrodynamic converter of energy in which its conversion takes place into an impulse of power. The impulse of power is transmitted through the body of a source with the aid of one of the foundations of the electrodynamic converter in the shape of an impulse of pressure in the point of contact of the source with investigated medium exciting in it elastic vibrations. The working element of the arrangement is installed in the body of the source the electrodynamic converter power damper of energy consisting of N-pairs of solenoids rigidly fastened on two flat foundations(mobile and fixed discs). Between the N-pairs of the solenoids of energy consisting of N-pairs of solenoids rigidly fastened on two flat foundations (mobile and fixed) between which power damper thrust elements are installed. In the initial position the foundations are separated from each other by a clearance. As the impulse of power passes the solenoids interaction of their electrical fields takes place. In result of redistribution of action forces of the fields with power damper thrust elements an impulse of mechanical power appears which acting along the axle of the source is transmitted by a fixed disc of the electrodynamic converter of energy through the body of the source in the shape of an impulse of pressure in the point of contact of the source with the investigated medium exciting in it elastic vibrations. The mobile disc in its turn moves in the direction of the fixed disc overcoming the resistance to pressure from the inner power damper thrust elements. As soon the feeding of the electric impulse on the solenoids is stopped the electrical fields disappear and the mobile disc under the action of damper thrust elements returns in the initial position. The arrangement for exciting seismic waves has an insulated cylindrical body with a foundation in the shape of a supporting plate in which there are separated by a clearance several N-pairs of solenoids rigidly fastened on two flat foundations, on a mobile and on a fixed discs. At that the fixed disc is firmly connected with the body and the mobile disc is installed between the inner power damper thrust elements and the exterior non power damper thrust elements with possibility to travel in the direction of the fixed disc.

EFFECT: can be applied in seismic prospecting.

4 cl, 1 dwg