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title='環(huán)境實(shí)驗(yàn)箱及實(shí)驗(yàn)室設(shè)備'>環(huán)境實(shí)驗(yàn)箱及實(shí)驗(yàn)室設(shè)備</a></li> </ul> </div> <div id="dztbprhhvx93" class="neiyeLeft-ctitle" style="margin-top:20px; text-align:left;"> <span id="dztbprhhvx93" class="neiyeLeft-span"> 聯(lián)系我們 / Contact Us</span> </div> <div id="dztbprhhvx93" class="ctext" style="padding-top:8px;border:solid 1px #dddddd; background-color:#f3f1f2; width:99%;"> <ul class="indexleft-list"> <div><span style="font-weight: bold;">上海科迎法電氣有限公司　</span></div> <div><span style="font-size: 9pt;">電話：021-64822327 64822118<br>???????????????67881109 67881107<br>郵箱：67881109@kyfbest.com</span></div> <div>郵箱：476294094@kyfbest.com</div> <div>郵箱：18701876288@kyfbest.com</div> <div>地址：上海松江高科技工業(yè)園淶寅路<br>1881號(hào)5號(hào)樓2層</div> <div>郵編：201615</div> <div>網(wǎng)站：<br>?????????www.best5858.com</div> <div><br></div> </ul> </div> </div> <div id="dztbprhhvx93" class="contRight"> <div id="dztbprhhvx93" class="conNeiRong"> <div id="dztbprhhvx93" class="conNeiTitle" style="text-indent:10px;"> <span id="dztbprhhvx93" class="conNeiTitle-span1"><span></span>行業(yè)新聞</span> <span id="dztbprhhvx93" class="conNeiTitle-span2">當(dāng)前位置:<a href='http:///'>主頁(yè)</a> > <a href='http:///news/'>新聞中心</a> > <a href='http:///news2/'>行業(yè)新聞</a> > </span> </div> <div id="dztbprhhvx93" class="conNeiText"> <div style=" text-align:left; float:left; margin:0px; padding:0px auto; width:98%;min-height:565px; margin-left:8px;"> <h1 class="title" style="margin-top:10px; margin-left:10px; text-align:center; line-height:35px;">使用航空插頭上微波電纜組件要考慮那些性能？</h1> <div id="dztbprhhvx93" class='search2' style='text-align:center; border-top:dotted 1px #999; margin-top:10px; padding-top:10px;'><strong>發(fā)布時(shí)間: </strong>2019-02-21　瀏覽次數(shù): ?<script src="http:///plus/count.php?view=yes&aid=1125&mid=1"type='text/javascript' language="javascript"></script></div> <div id="dztbprhhvx93" class="newp" style=" width:98%; padding:8px;"> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">怎樣選擇</span></span><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><a href="http:///"><span style="color:#ff0000;">航空插頭微波電纜</span></a></span></strong><span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">組件，首先要了解，弄懂它。 </span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <strong><span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">電學(xué)性能</span></span></strong></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">影響選擇微波電纜組件的電學(xué)性能包括工作頻率范圍、衰減(也稱虧損)、返回?fù)p耗/電壓駐波比(VSWR)的特性以及屏蔽電纜外導(dǎo)體(處理串?dāng)_、雜散浸入，和多余噪聲電平的關(guān)鍵)。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">有些應(yīng)用可能需要特別考慮航空插頭相位穩(wěn)定性與柔性或相位穩(wěn)定性與溫度和平均/峰值功率。相位匹配和信號(hào)延遲也是需要考率在內(nèi)的。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <strong><span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">操作頻率</span></span></strong></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">數(shù)據(jù)傳輸率較低時(shí)，管理傳導(dǎo)性和遠(yuǎn)距離傳輸時(shí)在航空插頭電纜上消耗的信號(hào)能量是關(guān)鍵。當(dāng)高數(shù)比/高頻傳輸時(shí)，使用諧波高階頻率，能保持波形平方的優(yōu)勢(shì)，但影響傳輸質(zhì)量的潛在物理量為選擇過(guò)程帶來(lái)了新的問(wèn)題。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">例如，在3GHz或更高頻率，封裝銅芯導(dǎo)體的電介質(zhì)材料，作用不僅僅是絕緣。它還需要起到保護(hù)信號(hào)傳播時(shí)不損耗的作用。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">要達(dá)到這種程度，使用的電介質(zhì)不但成本昂貴，而且難以形成。微波介質(zhì)通常選擇具備軟熱塑性的聚四氟乙烯(PTFE)，其介質(zhì)常數(shù)小于2.0 ，再加上空氣(真空介電常數(shù)為1)，電性能提高了，但剛度降低了，從而導(dǎo)致航空插頭用的電纜在壓力下彎曲變形。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em; text-align: center;"> <img alt="航空插頭上微波電纜" src="http:///uploads/allimg/170822/1-1FR21314135L.png" style="height: 374px; width: 400px;" title="航空插頭上微波電纜" /></p> <p style="text-indent: 2em; line-height: 2.5em;"> <strong><span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">衰減與反射</span></span></strong></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">衰減和信號(hào)反射，對(duì)</span></span><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><a href="http:///"><span style="color:#ff0000;">航空插頭</span></a></span></strong><span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">高數(shù)據(jù)傳輸而言可能是災(zāi)難性的。插入損耗適用于整個(gè)電纜組件，并以幅度下降作為表現(xiàn)。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">插入損耗的來(lái)源是導(dǎo)體、絕緣材料、連接器/電纜內(nèi)部的信號(hào)反射，及對(duì)外輻射，其中以電纜為最。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">回波損耗主要是由于阻抗不匹配，它還會(huì)產(chǎn)生駐波問(wèn)題，即VSWR。在最壞的情況下，反射波等于入射波，并且偏離原相位180°，即形成一個(gè)沒(méi)有信號(hào)通過(guò)的純粹駐波。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">常規(guī)電纜組件里形成VSWR的主要原因。配對(duì)航空插頭的公母邊之間的接口眾所周知易于管理。真正面臨的挑戰(zhàn)是連接器與配屬電纜之間的接口。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">這往往就是造成信號(hào)在電纜組件里衰減，以及品牌間性能極端變化背后的原因了。設(shè)計(jì)一個(gè)合理的連接器至電纜的過(guò)渡方式是至關(guān)重要的，這樣才能得到優(yōu)化的VSWR性能電纜配置。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <strong><span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">屏蔽</span></span></strong></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">高頻率使得導(dǎo)體線發(fā)揮著天線的作用。電纜吸收了雜散輻射，要么轉(zhuǎn)換成一個(gè)感應(yīng)電流要么向外輻射能量，造成串?dāng)_。首選糾正的方法是，用金屬編織物屏蔽電纜。屏蔽雙絞線、屏蔽雙導(dǎo)線饋線電纜、同軸電纜是常見(jiàn)的選擇。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">使用該類型的編織物是一個(gè)重要的考慮因素。由于編織物被裹在織紋里，編織電線交叉的地方通常就是泄漏發(fā)生的地方。提高編織物覆蓋率其中一個(gè)方法，是使用雙層編織物。另一種方法是將金屬化聚酯薄膜置于兩層編織物之間或在只有單層編織物時(shí)置于其下。這的確提供了100%的覆蓋率，但由于電流容量低，其屏蔽效能也微乎其微。</span></span></p> <p style="text-indent: 2em; line-height: 2.5em;"> <strong><span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">環(huán)境因素</span></span></strong></p> <p style="text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">操作溫度、空氣中的濕度以及接觸化學(xué)品、液體、沙子、灰塵、鹽霧、或紫外線輻射都是需要考慮的至關(guān)重要的因素，尤其是在正配置mil/aero應(yīng)用中。穩(wěn)定運(yùn)行和連續(xù)伸縮需考慮到。其他需要注意的因素還有沖擊和震動(dòng)的級(jí)別和高度。</span></span></p> <p style="margin-left: 0px; margin-right: 0px; text-indent: 2em; line-height: 2.5em;"> <span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">?相信大家一定對(duì)</span></span><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><a href="http:///"><span style="color:#ff0000;">航空插頭</span></a></span></strong><span style="color:#000000;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;">有了更深入的了解，上?？朴姎庥邢薰荆瑢I(yíng)航空插頭,防水連接器 ,傳感器連接器,電纜連接器,帶線插座,汽車線束,圓形接插件,防水插座,水位水溫傳感器等,當(dāng)日發(fā)貨質(zhì)量有保證，歡迎致電咨詢合作。<strong>航空插頭廠家http:/// </strong></span></span></p> </div> <div id="dztbprhhvx93" class="prodcont-cls" style="text-align:left; min-height:60px;">?</div> <div style="width:100%; height:50px; text-align:center; margin-top:50px;"> 上一篇：<a href='http:///news2/1124.html'>航空插頭表面電鍍有那幾種方式？</a> 下一篇：<a href='http:///news2/1126.html'>常用的電子連接器如何分類的</a> </div> </div> <div id="dztbprhhvx93" class="tj"> <div id="dztbprhhvx93" class="tj_wz"> <div id="dztbprhhvx93" class="neiyeLeft-ctitle" style="margin-top:20px; text-align:left;"> <span id="dztbprhhvx93" class="neiyeLeft-span"> 最新文章</span> 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