| 宽带水声发射系统换能器分段匹配方法研究 |
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| 引用本文： | 陈友淦,许肖梅,雷开卓,黄建国.宽带水声发射系统换能器分段匹配方法研究[J].兵工学报,2010,31(3):297-302. |
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| 作者姓名： | 陈友淦 许肖梅 雷开卓 黄建国 |
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| 作者单位： | 厦门大学,水声通信与海洋信息技术教育部重点实验室,福建,厦门,361005;西北工业大学,航海学院,陕西,西安,710072 |
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| 基金项目： | 国家自然科学基金资助项目，国家"863"计划专项课题，教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 换能器与功率放大器之间的匹配网络设计是宽带大功率水声发射系统的关键技术之一。把水声换能器、功率放大器及其联系两者的匹配网络视为一整体,从系统的观点出发,提出了一种分频段匹配宽带水声换能器的处理方法。通过对水声换能器的导纳特性和发射电压响应的分析,合理地选择匹配网络参数。该方法能充分发挥换能器在不同频段中的特性,实现水声发射系统的宽频带工作。水池实验验证了该方案的有效性:在2~16 kHz带宽范围内,发射电压响应级起伏ΔTVR和发射声源级起伏ΔSL均得到改善,尤其在感兴趣的4~15 kHz的宽带范围内,功率因数得到显著改善,功放管耗明显降低,发射电压响应级起伏ΔTVR从21 dB降到14 dB,发射电压声源级起伏ΔSL从24 dB降到7 dB,但对功放的安全保护电路提出了更高的要求。
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| 关 键 词： | 电子技术 通信与信息系统 水声发射系统 换能器 宽频带 分段匹配 |
Piecewise Matching Method of Transducer for Broadband Underwater Acoustic Transmitter System |
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| CHEN You-gan,XU Xiao-mei,LEI Kai-zhuo,HUANG Jian-guo.Piecewise Matching Method of Transducer for Broadband Underwater Acoustic Transmitter System[J].Acta Armamentarii,2010,31(3):297-302. |
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| Authors: | CHEN You-gan XU Xiao-mei LEI Kai-zhuo HUANG Jian-guo |
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| Affiliation: | (1.Key Laboratory of Underwater Acoustic Communication and Marine Information Technology of the Ministry of Education,an, China;2.School of Marine Engineering, Northwestern Polytechnical University,nxi， China) |
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| Abstract: | Matching network design between the transducer and the power amplifier is one of the key techniques for the broadband,high power underwater acoustic transmitter system.Treating the transducer,the power amplifier and the matching network as one entirety,a new piecewise matching method was proposed.By analyzing the admittance characteristics and the transmitting voltage response of the transducer,the matching network parameters were chosen reasonably.With the goal of increasing transmitting bandwidth and impr... |
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| Keywords: | electron technology communication and information system underwater acoustic transmitter system transducers broadband piecewise matching |
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