一种用于传声器自噪声抑制的风锥结构设计  

A Wind Cone Design for Reducing Microphone Self-noise Lever

作　　者：侍艳华[1] 周瑜[1] 冯晖[1] 赵龙江[1] 

机构地区：[1]中国电子科技集团公司第三研究所,北京100015

出　　处：《电声技术》2015年第12期17-19,39,共4页Audio Engineering

摘　　要：设计了一种用于定向高风速下传声器自噪声抑制的多节复合风锥结构,该结构由鼻锥、湍流屏蔽筒、尾部导流帽三部分组成。利用Fluent软件进行了模拟仿真,仿真结果表明该风锥结构在高风速定向风下能够有效地减小传声器结构与气流相互作用产生的湍流,从而减小传声器自噪声。Aiming to reduce sensor self - noise lever under a high speed and directional air flow, amulti section wind cone structure is designed. The structure is composed of nose cone, turbulence shielding barrel, diversion tail. The simulation is carried out using the simulation software named Fluent, the simulation results show that the wind cone structure can reduce the turbulence generated by interaction s between the microphone structure and the air flow and the sensor self - noise lever.

关 键 词：鼻锥 风锥 自噪声 传声器 仿真 

分 类 号：TN641[电子电信—电路与系统]