基于IPM的水声发射机的设计与应用  

Design and application of the IPM based underwater acoustic transmitters

作　　者：郭丽华 包博涵 GUO Lihua;BAO Bohan(The School of Civil Engineering,Harbin University,Harbin 150086,Heilongjiang,China;College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin 150001,Heilongjiang,China)

机构地区：[1]哈尔滨学院土木建筑工程学院,黑龙江哈尔滨150086 [2]哈尔滨工程大学水声工程学院,黑龙江哈尔滨150001

出　　处：《声学技术》2024年第3期345-354,共10页Technical Acoustics

基　　金：黑龙江省地下工程技术重点实验室开放基金(2017-HXYKF=05);哈尔滨学院青年博士基金项目(HUDF2017204)。

摘　　要：在声呐系统中,水声发射机通常由功率、驱动等分立器件实现,为提高电路的可靠性,还需要设计各种保护电路、监控电路等,这使得电路设计变得复杂、发射机体积增加。为了解决这一问题,文章提出采用现场可编程门阵列(Field Programmable Gate Array,FPGA)作为数字控制芯片,完成发射机的信号产生、控制、通信等功能;以智能功率模块(Intelligent Power Module,IPM)作为功率级的智能声呐发射机方案。文中给出了发射机的电路设计方案,为减小工作带宽内的声源级起伏,提高发射机的性能,同时对换能器负载进行匹配。最后进行了发射机的电气性能测试和水池声源级测试等,结果表明该数字发射机具有稳定可靠、保护功能多、体积小等优势,该设计方案在水声发射机领域中有很好的应用前景。In the sonar system,the underwater acoustic transmitter is usually implemented by discrete devices such as power and drive.Furthermore,for the improvement of circuit reliability,various protection circuits and monitoring circuits need to be designed,which makes the transmitter circuit design complicated and increased in volume.In order to solve this problem,this paper proposes using FPGA as a digital control chip to complete the signal generation,control,communication and other functions of the transmitter,and the intelligent power module(IPM)is used as a power-level intelligent sonar transmitter scheme.In order to reduce the source level fluctuation in the working bandwidth,improve the performance of the transmitter and match the transducer load,the circuit design scheme of the transmitter is given in this paper.The electrical performance test of the transmitter and the sound source level test in the pool are conducted,and the results show that the digital transmitter has the advantages of stability,reliability,multiple protection functions,and small size.The design scheme proposed in this paper has a good application prospect in the field of underwater acoustic transmitters.

关 键 词：智能功率模块 声呐 发射机 

分 类 号：TN83[电子电信—信息与通信工程] TN85[自动化与计算机技术—检测技术与自动化装置] TP274[自动化与计算机技术—控制科学与工程]