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          行业新闻

          如何做一个压电式蜂鸣器

          浏览?#38382;?1562018-03-07  

          在同类产品中,压电式蜂鸣器由于其具有体积小、灵敏度高等优势,一直深受大众追捧。作为一种在电子设备中用于作为发声器而使用的零件,接下来我们就来教大家做一个压电式蜂鸣器

          压电式蜂鸣器

          第一步,先制备一个电磁铁
          主要是在长约6厘米的铁螺栓?#20808;?00圈导线,线端留下5厘米作引线,用透明胶?#21450;?#32447;圈粘好,以免线圈松开,再用胶?#21450;?#23427;粘在一个盒子上,电磁铁就做好了。
          第二步,制备弹片
          制备弹片的时候,需要从铁罐头盒上剪下一条宽约2厘米的长铁片,弯成直角,把电磁铁的一条引线接在弹片上,再用胶?#21450;?#24377;片紧贴在木板上。
          第三步,接下来,?#20204;?#21035;针做触头
          用书把曲别针垫高,用胶布粘牢,引出一条导线,并连接好电路。
          完成好上述三步之后,调节电磁铁与弹片之间的距离(通过移动盒子),使电磁铁能吸引弹片,调节触点与弹片之间的距离,使它们能恰好接触,通电后就可以听到蜂鸣声。这样就算是完成了压电式蜂鸣器的制作。希望大家可以根据我们的方法步骤,?#32422;?#20570;一个蜂鸣器。

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