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空心线圈有什么作?/h3>
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<span>文章出处?a href=""><a href="http://cfdz.nsw888.com">深圳市晨飞电子有限公?/a></a></span><span>网责任编辑：<a href="http://cfdz.nsw888.com">NSW</a></span><span>作者：<a href="http://cfdz.nsw888.com">NSW</a></span><span>人气?span
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<p> <a href="http://www.chenfeipower.com/product/product-0001,0016,0053.shtml">空心线圈</a>在设计时不需要考虑磁通密度的.空心线圈是空心的不需要磁芯所以不存在考虑磁通密?需要考虑安装尺寸,电流,电阻,电感?还有安装方式.那么空心线圈有什么作用呢？今天就?a href="http://www.chenfeipower.com">深圳晨飞电子</a>的小编来向大家简单讲解一下，它的基本作用有两点，具体如下?br />
一、空心线圈调谐与选频作用?空心线圈与电容器并联可组成lc调谐电路，即电路的固有振荡频率f0与非交流信号的频率f相等，则回路的感抗与容抗也相等，于是电磁能量就在电感、电容来回振荡，这lc回路的谐振现象。谐振时电路的感抗与容抗等值又反向，回路总电流的感抗最小，电流量最大，lc谐振电路具有选择频率的作用，能将某一频率f的交流信号选择出来?br />
二、心线圈阻流作用?br />
空心线圈线圈中的自感电动势总是与线圈中的电流变化抗。空心线圈对交流电流有阻碍作用，阻碍作用的大小称感抗xl，单位是欧姆。它与电感量l和交流电频率f的关系为xl=2πfl，电感器主要可分为高频阻流线圈及低频阻流线圈?br />
以上就是空心线圈的基本作用了，你理解了吗？在这里，小编向你推荐一篇为什么电感线圈在串、并联电路中作用不同？（http://www.chenfeipower.com/Article/weishimedianganxianq_1.html），如果你想订制电感线圈或者空间线圈，你可以通过晨飞电子的官网进行在线咨询，或者拨打全国服务热?00-0260-160</p>
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