Method and device for measuring the acoustic power of a focused ultrasonic field

摘要

The invention relates to a method for measuring the acoustic power of a focused ultrasonic field and a device for carrying out the method. According to the invention, the electrical signals tapped at the electrodes (80) of the ultrasonic transducer arrangement (2) are temporarily delayed by means of a delay device (54, 56), respectively assigned to them, in such a way that the electrical signals are present at the inputs of an electronic evaluation unit (60) in phase with one another. IMAGE