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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="mgdkhd3" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>其它傳感器線圈優(yōu)勢,傳感器線圈</p><p><span>***更新：</span>2021-01-04 05:07:10</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="mfxegn4" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無錫東英電子有限公司</a></p><p><span>聯(lián)系人：</span>朱淇華</p><p><span>郵箱: </span>wxdydz@163.com</p><p><span>電話: </span>13921179070</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0510-83785478</p><p><span>地址: </span>江蘇省無錫市錫山區(qū)錫北鎮(zhèn)新壩村</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="qpre8vc" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3m4fcjn" class="box"><p><p> 一般用高頻蠟或其他介質(zhì)材料進(jìn)行密封固定。另外，應(yīng)注意在維修中，不要隨意改變或調(diào)整原線圈的位置，以免導(dǎo)致失諧故障。（5）可調(diào)線圈的安裝應(yīng)便于調(diào)整可調(diào)線圈應(yīng)安裝在機(jī)器的易于調(diào)節(jié)的位置，以便于調(diào)整線圈的電感量達(dá)到佳的工作狀態(tài)。[2]原理電感是導(dǎo)線內(nèi)通過交流電流時(shí)，在導(dǎo)線的內(nèi)部及其周圍產(chǎn)生交變磁通，導(dǎo)線的磁通量與生產(chǎn)此磁通的電流之比。當(dāng)電感中通過直流電流時(shí)，其周圍只呈現(xiàn)固定的磁力線，不隨時(shí)間而變化；可是當(dāng)在線圈中通過交流電流時(shí)，其它傳感器線圈優(yōu)勢，其周圍將呈現(xiàn)出隨時(shí)間而變化的磁力線。根據(jù)法拉弟電磁感應(yīng)定律——磁生電來分析，變化的磁力線在線圈兩端會產(chǎn)生感應(yīng)電勢，此感應(yīng)電勢相當(dāng)于一個(gè)“新電源“。當(dāng)形成閉合回路時(shí)，此感應(yīng)電勢就要產(chǎn)生感應(yīng)電流。由楞次定律知道感應(yīng)電流所產(chǎn)生的磁力線總量要力圖阻止原來磁力線的變化的。由于原來磁力線變化來源于外加交變電源的變化，故從客觀效果看，電感線圈有阻止交流電路中電流變化的特性，其它傳感器線圈優(yōu)勢。電感線圈有與力學(xué)中的慣性相類似的特性，在電學(xué)上取名為“自感應(yīng)“，通常在拉開閘刀開關(guān)或接通閘刀開關(guān)的瞬間，其它傳感器線圈優(yōu)勢，會發(fā)生火花，這就是自感現(xiàn)象產(chǎn)生很高的感應(yīng)電勢所造成的?？傊?dāng)電感線圈接到交流電源上時(shí)。單向傳感器線圈，無錫東英電子有限公司。其它傳感器線圈優(yōu)勢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="其它傳感器線圈優(yōu)勢,傳感器線圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637385477813064799/2809433.png"></div><p> 2）線圈在安裝前，要進(jìn)行外觀檢查使用前，應(yīng)檢查線圈的結(jié)構(gòu)是否牢固，線匝是否有松動和松脫現(xiàn)象，引線接點(diǎn)有無松動，磁芯旋轉(zhuǎn)是否靈活，有無滑扣等。這些方面都檢查合格后，再進(jìn)行安裝。（3）線圈在使用過程需要微調(diào)的，應(yīng)考慮微調(diào)方法有些線圈在使用過程中，需要進(jìn)行微調(diào)，依靠改變線圈圈數(shù)又很不方便，因此，選用時(shí)應(yīng)考慮到微調(diào)的方法。例如單層線圈可采用移開靠端點(diǎn)的數(shù)困線圈的方法，即預(yù)先在線圈的一端繞上3圈～4圈，在微調(diào)時(shí)，移動其位置就可以改變電感量。實(shí)踐證明，這種調(diào)節(jié)方法可以實(shí)現(xiàn)微調(diào)±2%－±3%的電感量。應(yīng)用在短波和超短波回路中的線圈，常留出半圈作為微調(diào)，移開或折轉(zhuǎn)這半圈使電感量發(fā)生變化，實(shí)現(xiàn)微調(diào)。多層分段線圈的微調(diào)，可以移動一個(gè)分段的相對距離來實(shí)現(xiàn)，可移動分段的圈數(shù)應(yīng)為總?cè)?shù)的20%－30%。實(shí)踐證明：這種微調(diào)范圍可達(dá)10%－15%。具有磁芯的線圈，可以通過調(diào)節(jié)磁芯在線圈管中的位置，實(shí)現(xiàn)線圈電感量的微調(diào)。（4）使用線圈應(yīng)注意保持原線圈的電感量線圈在使用中，不要隨便改變線圈的形狀。大小和線圈間的距離，否則會影響線圈原來的電感量。尤其是頻率越高，即圈數(shù)越少的線圈。所以，在電視機(jī)中采用的高頻線圈。其它傳感器線圈優(yōu)勢原裝傳感器線圈，無錫東英電子有限公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="其它傳感器線圈優(yōu)勢,傳感器線圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637385478235994576/7223298.png"></div><p> 它與電感量L和交流電頻率f的關(guān)系為XL=2πfL品質(zhì)因素品質(zhì)因素Q是表示線圈質(zhì)量的一個(gè)物理量，Q為感抗XL與其等效的電阻的比值，即：Q=XL/R。它是指電感器在某一頻率的交流電壓下工作時(shí)，所呈現(xiàn)的感抗與其等效損耗電阻之比。電感器的Q值越高，其損耗越小，效率越高。線圈的Q值與導(dǎo)線的直流電阻，骨架的介質(zhì)損耗，屏蔽罩或鐵芯引起的損耗，高頻趨膚效應(yīng)的影響等因素有關(guān)。線圈的Q值通常為幾十到幾百。電感器品質(zhì)因數(shù)的高低與線圈導(dǎo)線的直流電阻、線圈骨架的介質(zhì)損耗及鐵心、屏蔽罩等引起的損耗等有關(guān)。分布電容任何電感線圈，其匝與匝之間、層與層之間，線圈與參考地之間，線圈與磁屏蔽罩間等都存在一定的電容，這些電容稱為電感線圈的分布電容。若將這些分布電容綜合在一起，就成為一個(gè)與電感線圈并聯(lián)的等效電容C。分布電容的存在使線圈的Q值減小，穩(wěn)定性變差，因而線圈的分布電容越小越好。額定電流額定電流是指電感器有正常工作時(shí)反允許通過的大電流值。若工作電流超過額定電流，則電感器就會因發(fā)熱而使性能參數(shù)發(fā)生改變，甚至還會因過流而燒毀。允許偏差允許偏差是指電感器上標(biāo)稱的電感量與實(shí)際電感的允許誤差值。一般用于振蕩或?yàn)V波等電路中的電感器要求精度較高。</p><p> 圖2b示出金屬目標(biāo)124相對于正弦定向線圈112和余弦定向線圈110處于90°位置。如圖2b所示，在正弦定向線圈112中，金屬目標(biāo)124完全覆蓋環(huán)路116，并且使環(huán)路114和環(huán)路118未被覆蓋。結(jié)果，vc＝1/2、vd＝0、以及ve＝1/2，因此vsin＝vc+vd+ve＝1。類似地，在余弦定向線圈110中，環(huán)路120的一半被覆蓋，導(dǎo)致va＝-1/2，并且環(huán)路122的一半被覆蓋，導(dǎo)致vb＝1/2。因此，由va+vb給出的vcos為0。類似地，圖2c示出金屬目標(biāo)124相對于正弦定向線圈112和余弦定向線圈110處于180°位置。因此，正弦定向線圈112中的環(huán)路116和環(huán)路118的一半被金屬目標(biāo)124覆蓋，而余弦定向環(huán)路110中的環(huán)路122被金屬目標(biāo)124覆蓋。因此va＝-1、vb＝0、vc＝1/2、vd＝-1/2、以及ve＝0。結(jié)果，vsin＝0且vcos＝-1。圖2d示出vcos和vsin相對于具有圖2a、圖2b和圖2c中提供的線圈拓?fù)涞慕饘倌繕?biāo)124的角位置的曲線圖。如圖2d所示，可以通過處理vcos和vsin的值來確定角位置。如圖所示，通過從定義的初始位置到定義的結(jié)束位置對目標(biāo)進(jìn)行掃描，將在的輸出中生成圖2d中所示的正弦(vsin)和余弦(vcos)電壓。金屬目標(biāo)124相對于接收線圈104的角位置可以根據(jù)來自正弦定向線圈112的vsin和余弦定向線圈110的vcos的值來確定，如圖2e所示。常開傳感器線圈，無錫東英電子有限公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="其它傳感器線圈優(yōu)勢,傳感器線圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637385477892273860/8281137.png"></div><p> 余弦定向線圈110可以包括具有順時(shí)針定向的環(huán)路120和具有逆時(shí)針定向的第二環(huán)路122。圖1b示出由箭頭指示的可能的電動勢參考方向，該方向與由如圖1a所示的發(fā)射器線圈106產(chǎn)生的磁場一致。如本領(lǐng)域技術(shù)人員將認(rèn)識到的，可以以其他方式解釋所述定向。在圖1b所示的系統(tǒng)中，發(fā)射器線圈(tx)106被電路102(電路102可以是集成電路)激勵(lì)，以生成被示出為emf場108的可變電磁場(emf)。磁場108與線圈(rx)104耦合。如圖1b所示，如果將導(dǎo)電金屬目標(biāo)124放置在線圈104的上方，則會在金屬目標(biāo)124中生成渦電流。該渦電流生成新的電磁場，該電磁場理想情況下與場108相等并相反，從而抵消了在金屬目標(biāo)124正下方的線圈104中的場。線圈(rx)104捕獲由發(fā)射線圈106生成的可變emf場108和由金屬目標(biāo)124感應(yīng)的場，得到在線圈104的端子處生成的正弦電壓。在沒有金屬目標(biāo)124的情況下，在rx線圈104(在圖1b中被標(biāo)記為rxcos110和rxsin112)的端子處將沒有電壓。當(dāng)金屬目標(biāo)124相對于rx線圈104被放置在特定位置時(shí)，在被金屬目標(biāo)124覆蓋的區(qū)域上的合成電磁場理想地為零，因此在rx線圈104的端子處的電壓將具有不同的特性，這取決于金屬目標(biāo)124相對于接收線圈104的位置。傳感器線圈報(bào)價(jià)，無錫東英電子有限公司。其它傳感器線圈優(yōu)勢</p><p style="text-indent:25px">比例傳感器線圈，無錫東英電子有限公司。其它傳感器線圈優(yōu)勢</p><p> 如果導(dǎo)線通過的電流是固定不變的，即直流電流，則產(chǎn)生的磁場也是恒定的。而當(dāng)一個(gè)閉合回路中的電流發(fā)生變化時(shí)，隨著電流的變化，電流產(chǎn)生的磁場也在變化。如果導(dǎo)線通過語音電流，則產(chǎn)生的磁場也隨語音的變化而變化。這種變化的磁場將在它附近的其他回路中產(chǎn)生感應(yīng)電流。如果把一個(gè)線圈回路放置在磁場中，磁力線通過線圈回路時(shí)，線圈回路有電流產(chǎn)生。如磁場是由語音信號所產(chǎn)生，那么在此磁場中線圈感應(yīng)的電流則是語音電流。電場轉(zhuǎn)變磁場，磁場轉(zhuǎn)變電場的過程，是電磁感應(yīng)基本原理的實(shí)際應(yīng)用。由此我們知道，磁感應(yīng)線圈助聽系統(tǒng)信號發(fā)送與接收的過程是，將放大的音頻信號電流，通過長直導(dǎo)線形成隨音頻變化的交變磁場，由接收耳機(jī)中的線圈感應(yīng)出微弱音頻電流，經(jīng)放大后，耳機(jī)又將其恢復(fù)成語音信號。來自錄音機(jī)、收音機(jī)、電視機(jī)或教師的聲音經(jīng)麥克風(fēng)、放大器、調(diào)頻部件以交流電的形式直接傳遞到線圈內(nèi)，電流在線圈周圍產(chǎn)生了一個(gè)電磁場，這種帶有聲音信號的電磁波可以在空間傳播并為助聽器上的拾音線圈(telecoil)所接收。在拾音線圈里電磁波又轉(zhuǎn)換為音頻電流，電流再經(jīng)過助聽器的放大處理，還原成聲音信號。其它傳感器線圈優(yōu)勢</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2695206.html</p></div></div></div></div></div><div id="utq3mjy" class="page-right twoColRt"><div id="shjqsz8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jsum83m" class="recomPic likePro"><a 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