SELF-SUPPORTING AND SELF -ALIGNING VIBRATION EXCITATOR

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) ; wherein the stinger (3) has a first end (3a) that is coupled to the main body (2) , and an opposite second end (3b) that is intended for attachment to an object (V) to be examined; wherein the stinger (3) has an elastic centre point (Me) ; wherein the main body (2) has a centre of gravity (G) ; and wherein Ll = L3 applies, wherein Ll is the distance between the elastic centre point (Me) and the second stinger end (3b) , measured along the said working direction; and wherein L3 is the distance between the centre of gravity (G) and the second stinger end (3b) , measured along the said working direction.