發(fā)布時(shí)間：2018-01-03 01:09

  本文關(guān)鍵詞：水聲寬帶聲發(fā)射匹配技術(shù)研究　出處：《中國(guó)艦船研究院》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 寬帶匹配 水聲發(fā)射機(jī) 實(shí)頻數(shù)據(jù)法 遺傳算法

【摘要】：高性能寬帶大功率聲發(fā)射系統(tǒng)是水聲對(duì)抗裝備的關(guān)鍵件之一，為此不僅需要有性能良好的大功率發(fā)射機(jī)和高性能的寬帶換能器，同時(shí)需要在換能器和發(fā)射機(jī)之間加入高性能寬帶阻抗匹配網(wǎng)絡(luò)，才能獲得大的輸出功率和高的能量轉(zhuǎn)換效率。本文試制了大功率發(fā)射機(jī)，并進(jìn)行了設(shè)計(jì)分析，測(cè)試了其性能；詳細(xì)設(shè)計(jì)了阻抗匹配網(wǎng)絡(luò)，并根據(jù)發(fā)射機(jī)的輸出阻抗和換能器的阻抗參數(shù)試制了電路，進(jìn)行了試驗(yàn)，使經(jīng)過(guò)匹配后的發(fā)射系統(tǒng)具有發(fā)射電壓響應(yīng)平坦、發(fā)射效率高和換能器阻抗變化小的特點(diǎn)。 首先，試制了一臺(tái)2500W高效率大功率發(fā)射機(jī)，文中分別對(duì)發(fā)射機(jī)輸入電路、驅(qū)動(dòng)放大電路和大功率放大電路進(jìn)行了詳細(xì)的討論。根據(jù)設(shè)計(jì)出的電路進(jìn)行了器件的選擇，印制了電路板，制作了發(fā)射機(jī)電路，并進(jìn)行了調(diào)試和測(cè)試，測(cè)試結(jié)果滿足設(shè)計(jì)要求。 其次，介紹了三種寬帶匹配方法。第一種為簡(jiǎn)易匹配方法，第二種為實(shí)頻數(shù)據(jù)法，第三種為基于遺傳算法的元件直接優(yōu)化法。其中第一種為解析方法，后兩種為數(shù)值方法，并分析了寬帶匹配的解析方法與數(shù)值方法的應(yīng)用條件的差異。匹配設(shè)計(jì)要求匹配后發(fā)射電壓響應(yīng)平坦、發(fā)射效率高和阻抗變化小。由于設(shè)計(jì)要求的多目標(biāo)特性，介紹了多目標(biāo)函數(shù)優(yōu)化的理論計(jì)算。在得到電路的具體參數(shù)后，采用電路仿真軟件multisim、protel或simulink進(jìn)行驗(yàn)證。但是由于換能器的等效電路參數(shù)是隨頻率變化而變化，因此不能直觀得到結(jié)果，本文根據(jù)二端口網(wǎng)絡(luò)的計(jì)算公式通過(guò)Matlab編程進(jìn)行仿真驗(yàn)證電路。 最后，以一個(gè)典型的中高頻寬帶壓電發(fā)射換能器為匹配對(duì)象，測(cè)量了該發(fā)射換能器的阻抗參數(shù)及發(fā)射電壓響應(yīng)。根據(jù)測(cè)量的參數(shù)并結(jié)合實(shí)頻數(shù)據(jù)法和元件直接優(yōu)化法編寫了匹配網(wǎng)絡(luò)設(shè)計(jì)的仿真程序，通過(guò)比較多種電路模型的仿真結(jié)果得到了一組較好的匹配網(wǎng)絡(luò)參數(shù)。根據(jù)仿真得到的元件值進(jìn)行了匹配網(wǎng)絡(luò)的制作，，詳述了制作過(guò)程，并在水池進(jìn)行了匹配效果測(cè)試。測(cè)試結(jié)果為在頻帶兩端發(fā)射電壓響應(yīng)提高了13dB，在頻帶中段提高了9dB，匹配網(wǎng)絡(luò)改善了發(fā)射電壓響應(yīng)的平坦度，并提升了發(fā)射電壓響應(yīng)。
[Abstract]:High performance broadband high power acoustic emission system is one of the key components of underwater acoustic countermeasure equipment. Therefore, not only high power transmitters and high performance broadband transducers are needed. At the same time, it is necessary to add high performance broadband impedance matching network between transducer and transmitter in order to obtain high output power and high energy conversion efficiency. Its performance was tested. The impedance matching network is designed in detail. According to the output impedance of the transmitter and the impedance parameter of the transducer, the circuit is trial-produced, and the experiment is carried out, which makes the matched transmission system have a flat response of the transmitting voltage. High emission efficiency and small change in transducer impedance. First, a 2500W high efficiency high power transmitter is developed, and the transmitter input circuits are given in this paper. The driving amplifier circuit and the high power amplifier circuit are discussed in detail. According to the designed circuit, the circuit board is printed, the transmitter circuit is made, and the debugging and testing are carried out. The test results meet the design requirements. Secondly, three kinds of wideband matching methods are introduced. The first is simple matching method, the second is real frequency data method, the third is element direct optimization method based on genetic algorithm. The latter two methods are numerical methods, and the difference between the analytical method and numerical method is analyzed. The matching design requires that the matching voltage response is flat. The transmission efficiency is high and the impedance change is small. The theoretical calculation of multi-objective function optimization is introduced because of the multi-objective characteristic of the design requirement. After the specific parameters of the circuit are obtained, the circuit simulation software multisim is used. But the equivalent circuit parameters of the transducer vary with the frequency, so the results can not be obtained directly. According to the calculation formula of two-port network, this paper simulates the circuit by Matlab programming. Finally, a typical middle and high frequency wideband piezoelectric transmission transducer is used as the matching object. The impedance parameters and the transmission voltage response of the transmitter are measured. According to the measured parameters, the simulation program of the matching network design is compiled according to the measured parameters, combining with the real frequency data method and the element direct optimization method. By comparing the simulation results of various circuit models, a set of better matching network parameters is obtained. According to the element values obtained by simulation, the matching network is made, and the fabrication process is described in detail. The matching effect is tested in the pool. The results show that the transmitting voltage response at the two ends of the frequency band is improved by 13 dB, and in the middle of the frequency band by 9 dB, and the flatness of the transmission voltage response is improved by the matching network. It also improves the response of the transmitting voltage.
【學(xué)位授予單位】：中國(guó)艦船研究院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U666.7

【參考文獻(xiàn)】

相關(guān)期刊論文 前6條

1 郭光榮;薛斌;張?jiān)讫?胡亮;;基于IR2132驅(qū)動(dòng)電路的應(yīng)用設(shè)計(jì)[J];兵工自動(dòng)化;2006年05期

2 李志敏;賽景波;;寬帶放大器匹配電路的設(shè)計(jì)與仿真[J];電子器件;2012年06期

3 唐文翰;鄭鑫;;MATLAB遺傳算法在天線匹配網(wǎng)絡(luò)的應(yīng)用[J];廣西民族師范學(xué)院學(xué)報(bào);2010年03期

4 吳運(yùn)發(fā);水聲寬帶換能器匹配技術(shù)研究[J];聲學(xué)技術(shù);2000年02期

5 高天賦;曾娟;李海峰;劉海軍;彭大勇;趙文耀;;壓電陶瓷發(fā)射換能器的Butterworth匹配定理[J];聲學(xué)學(xué)報(bào);2006年04期

6 雷開卓;黃建國(guó);張群飛;陳建峰;李寧;方明;;定向能武器發(fā)展現(xiàn)狀及未來(lái)展望[J];魚雷技術(shù);2010年03期

本文編號(hào)：1371711