【作者】 赵慧； 刘振君； 王艳； 赵欢；

【Author】 ZHAO Hui;LIU Zhen-jun;WANG Yan;ZHAO Huan;Shanghai Marine Electronic Equipment Research Institute;

【机构】 上海船舶电子设备研究所；

【摘要】 目前先进的PIMNT压电单晶材料与传统的PZT相比,具有能量密度比高、压电常数高、阻抗小等优点。本文先对PIMNT单晶材料进行声学性能仿真计算,预估PIMNT单晶材料换能器性能,然后制作了PIMNT单晶材料换能器和传统PZT材料换能器。对PIMNT单晶材料换能器的发射性能、功率容量、接收性能等进行测试。测试表明,PIMNT单晶材料换能器的收发性能相对于PZT换能器有所提高,但在长脉冲、大功率发射时PIMNT单晶材料换能器因功率疲劳而使发射性能显著下降。更多还原

【Abstract】 At present,the advanced PIMNT piezoelectric single crystal material has the advantages of high energy density radio,high piezoelectric constant and small impedance compared with the traditional PZT.In this paper,the performance of PIMNT single crystal material transducer is simulated by simulating the acoustic performance of PIMNT single crystal material,and then the PIMNT single crystal material transducer and PZT material transducer are fabricated.The emission performance,power capacity and reception performance of the PIMNT single crystal material transducers were tested.The results show that the sending and receiving performance of the PIMNT single crystal material transducer is improved compared with the PZT transducer,but the performance of the PIMNT single crystal material transducer is greatly reduced due to the power fatigue during the long pulse and high power emission.更多还原