The vibrator according to the invention comprises a tubular element comprising one or more sections, the upper end of which is provided with means for suspension from a hoisting and/or guiding machine and the lower end of which is connected to an endpiece successively including a damper-isolator, a generator of vibr...

The servo-control system for hydraulic unit (7) according to the invention comprises a pump (8) driven by a motor (9) feeding hydraulic fluid to a vibrator (1) or vibrating system comprising eccentric weights driven in rotation by at least one hydraulic motor receiving said fluid. It also comprises adaptation means ...