本文選題：聲波拒止設(shè)備　切入點：電磁換能器　出處：《電子科技大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：聲波拒止設(shè)備作為非致命性武器的一種,近年來廣泛應(yīng)用于防恐維穩(wěn)、區(qū)域警戒、海上執(zhí)法、邊境防護、機場驅(qū)鳥等維護國家利益與安全以及保護人民群眾生命財產(chǎn)安全的各種場合。其中高聲壓級電磁換能器是聲波拒止設(shè)備的核心部件,是聲波拒止設(shè)備高聲壓高指向性輸出的基礎(chǔ)保證。論文依托某警用裝備研究實驗室的實際項目需求,項目旨在研發(fā)一套擁有自主知識產(chǎn)權(quán)的車載聲波拒止設(shè)備,而本文主要任務(wù)在于適用該設(shè)備的新型電磁換能器的研制。本文首先對課題相關(guān)的國內(nèi)外現(xiàn)狀進行總結(jié),闡述高聲壓級電磁換能器研制的必要性,對聲波拒止設(shè)備的性能指標(biāo)需求進行分析,得到電磁換能器單體的性能參數(shù),提出了換能器的高靈敏度輸出理論,完成新型電磁換能器的總體結(jié)構(gòu)設(shè)計,并建立等效電路模型,探究換能器真實效率影響因素。其次圍繞高靈敏度這個最終設(shè)計目標(biāo),完成電磁換能器磁路模塊、振動部件模塊、相位塞和號筒模塊的詳細設(shè)計,并通過虛擬樣機技術(shù)實現(xiàn)電磁換能器的虛擬裝配,對設(shè)計的電磁換能器多物理場耦合特性進行深入分析,完成虛擬樣機的耦合仿真分析,研究了電磁換能器的組陣特性,為聲波拒止設(shè)備的組陣成型提供理論依據(jù)。最后完成電磁換能器的制作過程和測試,驗證了新型電磁換能器在輸入功率為25W時,最大聲壓級達到130dB以上,滿足聲波拒止設(shè)備換能器單體聲壓級要求。
[Abstract]:As one of the non-lethal weapons, sonic rejection devices have been widely used in recent years in the areas of terrorism prevention and stability, regional vigilance, maritime law enforcement, border protection, Airport bird displacement and other occasions to safeguard national interests and safety and to protect the lives and property of the people. Among them, high-pressure electromagnetic transducers are the core components of acoustic rejection equipment. This paper relies on the actual project demand of a police equipment research laboratory, the project aims to develop a set of on-board acoustic wave rejection equipment with independent intellectual property rights. The main task of this paper is to develop a new type of electromagnetic transducer which is suitable for the equipment. Firstly, this paper summarizes the current situation of the subject at home and abroad, and expounds the necessity of the development of the electromagnetic transducer with high acoustic pressure level. The performance requirements of acoustic rejection equipment are analyzed, and the performance parameters of electromagnetic transducer unit are obtained. The high sensitivity output theory of the transducer is put forward, the overall structure design of the new type electromagnetic transducer is completed, and the equivalent circuit model is established. Secondly, focusing on the final design goal of high sensitivity, the detailed design of the electromagnetic transducer's magnetic circuit module, vibration component module, phase plug and horn module is completed. The virtual assembly of electromagnetic transducer is realized by virtual prototype technology. The coupling characteristics of multi-physical field of the designed electromagnetic transducer are deeply analyzed, and the coupling simulation analysis of virtual prototype is completed, and the array characteristics of electromagnetic transducer are studied. It provides a theoretical basis for the array shaping of acoustic rejection equipment. Finally, the fabrication process and test of the electromagnetic transducer are completed. It is verified that the maximum sound pressure level of the new type electromagnetic transducer is more than 130 dB when the input power is 25 W. To meet the acoustic rejection equipment transducer unit sound pressure level requirements.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TB552

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