SHAKERS are high speed servo-controlled actuators designed to subject the elements under examination to vibration tests. Are very versatile because the power hydraulic unit is separate and allows easy positioning of the actuator and are particularly suitable for tests involving very high levels of acceleration.
They also allow the measurement of accelerations in the point of application, because the moving actuator incorporates an accelerometer.
Moreover, if additional accelerometers are placed on the elements under test, then it is possible to obtain a study of vibration propagation (example: test in a railway carriage).