ELECTRICAL SEISMIC VIBRATOR Russian patent published in 2015 - IPC G01V1/155 

FIELD: physics.

SUBSTANCE: disclosed is an electrical seismic vibrator, which comprises a base plate with ground lugs, an inertial mass, an electrodynamic power pulse former, shock-absorbers and a power pulse hydraulic transformer. The electrodynamic power pulse former is in the form of a shell-type power transformer with a primary winding on the middle core, and the secondary power winding is in the form of a rectangular short-circuited current-conducting coil. The rectangular short-circuited current-conducting coil is supported through its lower end by a non-current conducting plate, which is placed on a power platform a small-diameter hydraulic-cylinder rod with a small-diameter piston. The small-diameter hydraulic cylinder is placed on a large-diameter hydraulic cylinder. The cavity between the pistons is filled with a high-pressure hydraulic fluid. The radiating platform is provided with hollow bars placed in the inertial mass, inside of which the large-diameter hydraulic cylinder is attached in the lower part, and the magnetic core of the shell-type power amplifier is attached in the upper part. The magnetic core with the primary coil and the short-circuited current-conducting coil is filled with a liquid coolant. The inertial mass in the lower and upper parts is provided with shock-absorbers and dampers.

EFFECT: high efficiency of the seismic vibrator owing to improved frequency and amplitude characteristics of the generated vibrations.

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