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</script> <script type="text/javascript"> var OBJ_TITLE = "提高磁环线圈的品质因数有什么方法？"; var OBJ_ID = "473"; var MARK = "news"; var ARR_AD_MARK = ["news_detail_1", "news_detail_2", "news_detail_3"]; var SID = "0001,0002,0006"; //权限ID var AUTHORITY_ID = ""; </script> <script src="/JS/Cls_jsPage.js"></script> <!--content:start--> <div class="content"> <div class="plc2"> 当前位置?a href="/">首页</a> » <a href="/news/">资讯中心</a> » <a href="/News/News-0001,0002,0006.shtml"> 晨飞资讯</a> » <a href="">提高磁环线圈的品质因数有什么方法？</a></div> <div class="list4nr"> <div class="n_info_con" id="printableview"> <h3> 提高磁环线圈的品质因数有什么方法？</h3> <div class="info_con_tit"> <div class="info_con_tit"> <div class="n_tit"> <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 id="cntrHits">-</span></span><span>发表时间?015-07-31 14:25:00</span> <div class="newchang"> <!-- JiaThis Button BEGIN --> <div id="ckepop"> <a href="http://www.jiathis.com/share/?uid=899792" class="jiathis jiathis_txt jtico jtico_jiathis" target="_blank">分享到：</a> <a class="jiathis_button_qzone">QQ空间</a> <a class="jiathis_button_tsina"> 新浪微博</a> <a class="jiathis_button_tqq">腾讯微博</a> <a class="jiathis_button_tsohu">搜狐微博</a> <a class="jiathis_button_t163">网易微博</a> <a class="jiathis_button_tools_1"></a><a class="jiathis_button_tools_2"></a> </div> <script type="text/javascript"> var jiathis_config = { "data_track_clickback": true };</script> <script type="text/javascript" src="http://v2.jiathis.com/code/jia.js?uid=899792" charset="utf-8"></script> <!-- JiaThis Button END --> </div> </div> </div> </div> <div id="cntrBody"> <p>  <a href="http://www.chenfeipower.com/product/product-0001,0016.shtml">电感线圈</a>目前广泛应用在各行各业，那么在制作的时候，我们应该怎么样提高他的品质呢?首先要明确品质因素的定义，电路在谐振时容抗等于感抗，所以电容和电感上两端的电压有效值必然相等，电容上的电压有效值，<img width="173" height="41" src="/UploadFiles/FCK/图片1(1).png" alt="" /> 品质因素<img width="67" height="41" src="/UploadFiles/FCK/图片2(1).png" alt="" />，这里是电路的总电流?br /> 所以，对于品质因素的测量方法，首先，我们需要连接一个RCL电路，阻?img width="251" height="45" src="/UploadFiles/FCK/图片3(1).png" alt="" />，上式电阻R是复数的实部，感抗与容抗之差是复数的虚部，虚部我们称之为电抗用X表示, ω是外加信号的角频率。调节交流信号发射源的频率，使其X=0此时感抗和容抗相互抵消了。此时只需根据品质因素的定义，测量出电容上的电压和总电压，即可得到品质因素?img width="52" height="41" src="/UploadFiles/FCK/图片4(1).png" alt="" /><br />    从上面分析可见，电路的品质因素越高，电感或电容上的电压比外加电压越高?br /> <br />    <a href="http://www.chenfeipower.com">晨飞电子</a>技术人员表示，有如下办法提高品质因数：<br />    提高线圈Q值所采取的措施如?<br />    ①根据工作频率选择绕制线圈的导线。低频段工作的电感线圈应采用漆包线等带绝缘的导线绕制。对于工作频率在几十千赫至两兆赫之间的电感线圈，应采用多股绝缘导线绕制，以增加导体有效截面积，减少集肤效应的影响，可使Q值提?0%-40%。对于工作频率高?MHz的电感线圈，应采用单股粗导线绕制，导线的直径一般在0.3-1.5mm之间?br />    ②选用优质骨架，减少介质损耗。通常对于要求损耗小、工作频率高的电感线圈，应选用高频陶瓷、聚四氟乙烯、聚苯乙烯等高频介质材料做骨架。对于超高频工作的电感线圈，可用无骨架方式绕制?br />    ③选用带有磁心的电感线圈。电感线圈中带有磁心时，可使线圈圈数及其电阻大大减少，有利于Q值的提高?br />    ④合理选择屏蔽罩的尺寸。线圈加屏蔽罩后，会增加线圈的损耗，降低Q值。因此，屏蔽罩的尺寸不宜过大和过小。一般来说，屏蔽罩直径与线圈直径之比?.6-2.5为宜，这样可使Q值降低小?0%?br />    以上就是如何提高磁环线圈的品质方法了，你学会了吗？在这里，小编向你推荐一篇简述电感线圈的作用（http://www.chenfeipower.com/Article/dianganxianquandezuo_1.html），如果想了解更多关于这方面的知识。你也可以在线咨询?br />  </p> <p> </p> </div> <div class="apage" id="showfenye"> <!--资讯分页:start--> <script type="text/javascript"> var pagecont=1; 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