A hybrid magnetostrictive-piezoelectric barrel-stave projector  

作　　者：CHAI Yong MO Xiping LIU Yongping CUI Zheng 

机构地区：[1]Institute of Acoustics, Chinese Academy of Sciences Beijing 100080 [2]Graduate School of the Chinese Academy of Sciences Beijing 100029

出　　处：《Chinese Journal of Acoustics》2006年第4期371-377,共7页声学学报（英文版）

摘　　要：A hybrid magnetostrictive-piezoelectric barrel-stave projector is designed and developed. The new type transducer is driven by the union of rare-earth giant magnetostrictive material Terfenol-D and PZT piezoelectric ceramic. Combining the advantages of low frequency performance within a compact size, it proves that the hybrid projector has a much broader band and higher sound power than that with single magnetostrictive or piezoelectric driver by the simulated and measured results. The prototype of the hybrid projector has a size of 88 mm in outside diameter and 316 mm in length, with an underwater resonant frequency of 1.30 kHz, Q factor of 1.43 for -3 dB bandwidth, and transmitting voltage response level of 135.1 dB at the resonant frequency.A hybrid magnetostrictive-piezoelectric barrel-stave projector is designed and developed. The new type transducer is driven by the union of rare-earth giant magnetostrictive material Terfenol-D and PZT piezoelectric ceramic. Combining the advantages of low frequency performance within a compact size, it proves that the hybrid projector has a much broader band and higher sound power than that with single magnetostrictive or piezoelectric driver by the simulated and measured results. The prototype of the hybrid projector has a size of 88 mm in outside diameter and 316 mm in length, with an underwater resonant frequency of 1.30 kHz, Q factor of 1.43 for -3 dB bandwidth, and transmitting voltage response level of 135.1 dB at the resonant frequency.

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] O42[自动化与计算机技术—控制科学与工程]