Ultrasonic transducer array, whose function is to transfer high-frequency electric signal to ultrasound, is an important part of Acoustic Parametric Array. In the Acoustic Parametric Array, the ultrasound formed by the transducer array self-demodulates into hearable sound. 超声换能器阵是声学参量阵的重要组成部分。它的作用是将高频电信号转化为超声波,然后超声波在空气中自解调成为声波。