SOURCE OF SEISMIC VIBRATION Russian patent published in 2006 - IPC G01V1/02 

FIELD: vibration engineering.

SUBSTANCE: source comprises emitting plate mounted on the ground and having guides, inertia mass mounted on the guides, pusher connected with the inertia mass, and working member made of driving shaft and eccentric. The eccentric is provided with at least two hydraulic cylinders with pistons and rods whose both ends are connected with the eccentric and at least one return spring that connects the eccentric with the driving shaft. The hydraulic cylinders are pressed perpendicular to the shaft and have top and bottom spaces. The bottom and top spaces are interconnected through two parallel pipelines each of which is provided with the control throttle and check valve connected in series.

EFFECT: expanded functional capabilities.

3 dwg