A process for the consistency testing of therapeutic ultrasound devices and Konstanzprüfvorrichtung

The invention relates to a process for the consistency testing of particular therapeutic ultrasound equipment (12), comprising the steps of: sonicating a thermochromic target object (22) with ultrasound by means of the ultrasonic device (12) so that a detection region (48) is formed, in which the target object ( 22) has changed its color, after sonication detecting an actual parameter