Patent ID: 8296858

Claim:
A coupling device for an atomic force microscope with acoustic sample excitation comprising a sound generator, in particular an ultrasonic test head, and designed for coupling of sound waves generated using the sound generator into a sample body for acoustic excitation of the sample body, wherein the coupling device has a liquid reservoir fillable and/or filled with a liquid in its inner space; wherein a lower side of the sample body can be arranged and/or is arranged laterally displaceably on the liquid reservoir and/or thereabove; wherein an end of the sound generator formed for coupling the sound waves into the sample body is arranged in the inner space of the liquid reservoir and/or wherein sound waves can be coupled into the inner space with this end; and wherein the spatial section of the inner space of the liquid reservoir disposed between this end and the lower side of the sample body is completely fillable and/or filled with the liquid.