CN202093713U - 带镜子的喇叭 - Google Patents

带镜子的喇叭 Download PDF

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Publication number
CN202093713U
CN202093713U CN2011201378442U CN201120137844U CN202093713U CN 202093713 U CN202093713 U CN 202093713U CN 2011201378442 U CN2011201378442 U CN 2011201378442U CN 201120137844 U CN201120137844 U CN 201120137844U CN 202093713 U CN202093713 U CN 202093713U
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trumpet
model
utility
loudspeaker
mirror
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Expired - Fee Related
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CN2011201378442U
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English (en)
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吕仁禄
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Individual
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Abstract

本实用新型涉及一种教学仪器,尤其是涉及一种带镜子的喇叭。在喇叭纸盘的内侧设有一平面镜。实验时用一束激光照射到平面镜,经反射后投射到远处的白墙上,当喇叭发声时,墙上的光点会发生振动,学生就能从墙上光点的振动体会到喇叭的振动。所以本实用新型具有结构简单、操作方便、成本低廉等优点。

Description

带镜子的喇叭
所属技术领域
本实用新型涉及一种教学仪器,尤其是涉及一种带镜子的喇叭。
背景技术
目前在课堂教学中演示喇叭的振动一般是让学生用眼睛直接仔细观察或者用手触摸的方法,可是喇叭小不能让全体学生同时观察。
发明内容
本实用新型的目的是提供一种这样的带镜子的喇叭,上课演示时能让全体学生同时直接观察到喇叭的振动。
本实用新型解决其技术问题所采用的技术方案是:在喇叭纸盘的内侧设有一平面镜。
本实用新型的有益效果是:由于采用了上述方案,在做实验时,全体学生能同时直接观察到喇叭的振动,也不用手去触摸。所以它有结构简单操作方便、成本低廉等优点。
附图说明
下面结合附图和实施例对本实用新型进一步说明
图中所示的是本实用新型的结构示意图;
图中1、喇叭,2、平面镜。
具体实施方式
本实用新型可以用胶水在喇叭1的纸盘内侧贴上一平面镜2。实验时用一束激光照射到平面镜,经反射后投射到远处的白墙上,当喇叭发声时,墙上的光点会发生振动,学生就能从墙上光点的振动体会到喇叭的振动。所以本实用新型具有结构简单、操作方便、成本低廉等优点。

Claims (1)

1.一种带镜子的喇叭,其特征是:在喇叭(1)的纸盘的内侧设有一平面镜(2)。
CN2011201378442U 2011-04-25 2011-04-25 带镜子的喇叭 Expired - Fee Related CN202093713U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201378442U CN202093713U (zh) 2011-04-25 2011-04-25 带镜子的喇叭

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201378442U CN202093713U (zh) 2011-04-25 2011-04-25 带镜子的喇叭

Publications (1)

Publication Number Publication Date
CN202093713U true CN202093713U (zh) 2011-12-28

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Family Applications (1)

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CN2011201378442U Expired - Fee Related CN202093713U (zh) 2011-04-25 2011-04-25 带镜子的喇叭

Country Status (1)

Country Link
CN (1) CN202093713U (zh)

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111228

Termination date: 20120425