Self-supporting and self-aligning shaker

摘要

A vibration excitator is described, comprising: a main body (2); a stinger (3) which is adapted to move relative to the main body (2), in a particular working direction; an actuator (5) coupled to the main body (2) and the stinger (3) . The stinger has a first end (3a) coupled to the main body, and an opposite second end (3b) intended for attachment to an object (V) to be examined. The second stinger end (3b) has a head end face (3c), as well as a recessed sensor accommodation chamber (82) arranged in the head end face (3c). A sensor (80) is arranged in the accommodation chamber. The vibration excitator is provided with elastic means (83) for coupling the sensor to the accommodation chamber. The sensor is otherwise free from contact with the walls and the bottom of the accommodation chamber.