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Narrow-directional microphone with the manufacturing method and the same narrow-directional microphone for acoustic tube of narrow-directional microphone for acoustic tube

机译：具有该制造方法的窄指向性麦克风以及与该窄指向性麦克风相同的窄指向性麦克风

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摘要

PPROBLEM TO BE SOLVED: To improve the operability of the fitting of an acoustic resistance material in an acoustic tube wherein cost is given priority. PSOLUTION: When the acoustic resistance material 30 is disposed at the inner surface side of a tube body 11 of an acoustic tube 10, an air-permeable elastic body 40 is used which is formed in a belt shape so that a width Wa is larger than the internal diameter R of the tube body 11 and a thickness T is larger than the opening width "a of a sound wave introduction opening 12 and smaller than the internal diameter R of the tube body 11, and the elastic body 40 is inserted into the tube body 11 together with the acoustic resistance material 30 with the acoustic resistance material 30 along the width-directional end surface 41 of the elastic body 40. PCOPYRIGHT: (C)2008,JPO&INPIT

机译：

要解决的问题：为了提高将声阻材料安装在以成本为优先的声管中的可操作性。

解决方案：当将声阻材料30布置在声管10的管体11的内表面侧时，使用可透气的弹性体40，该弹性体形成为带状，使得宽度Wa弹性体40大于管体11的内径R，并且厚度T大于声波引入开口12的开口宽度“ a”并且小于管体11的内径R。沿着弹性体40的宽度方向端面41，将阻力材料30与阻力材料30一起插入到管体11中。

版权：（C）2008，JPO＆INPIT 展开▼

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公开/公告号JP4961221B2

专利类型
公开/公告日2012-06-27

原文格式PDF
申请/专利权人株式会社オーディオテクニカ;
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申请/专利号JP20070020385
发明设计人秋野裕;
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申请日2007-01-31
分类号H04R1/34;H04R1/32;H04R1/02;
国家 JP
入库时间 2022-08-21 17:38:22

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