An Array Design of a Smallest Column Pressure Electro-Acoustic Flow Sensor

This paper proposes a very small column piezoelectric ceramic sensor with low-frequency detection capability, horizontal omnidirectionality and improved spatial resolution of ocean turbulence noise for the current demand of AUV surface turbulence noise measurement, which adopts a linear array structure with equal interval arrangement. To better improve the sensor detection performance, the array structure of the sensor is optimized in terms of sensitivity, electrical admittance, directivity and other parameters, and the structure of the array is analyzed and simulated under the condition of maintaining good omnidirectionality of the sensor, which lays the foundation for further application of the sensor.