ACOUSTIC TRANSDUCER DEVICE COMPRISING A PIEZO SOUND TRANSDUCER AND AN MUT SOUND TRANSDUCER, METHOD OF OPERATING SAME, ACOUSTIC SYSTEM, ACOUSTIC COUPLING STRUCTURE, AND METHOD OF PRODUCING AN ACOUSTIC COUPLING STRUCTURE

摘要

An acoustic transducer device includes a piezo sound transducer configured to emit, on the basis of a control signal, a first sound wave in a radiation direction. The acoustic transducer device includes an MUT sound transducer configured to provide an output signal on the basis of a second sound wave received from a receive direction.