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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="iwyvht8" 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>換向傳感器線圈共同合作,傳感器線圈</p><p><span>***更新：</span>2021-01-28 14:09:15</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="yryamdu" 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="y7sbx8m" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="aeqnpbs" class="box"><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(chǎng)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)，換向傳感器線圈共同合作，隨著電流的變化，電流產(chǎn)生的磁場(chǎng)也在變化。如果導(dǎo)線通過語音電流，則產(chǎn)生的磁場(chǎng)也隨語音的變化而變化。這種變化的磁場(chǎng)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(chǎng)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(chǎng)是由語音信號(hào)所產(chǎn)生，那么在此磁場(chǎng)中線圈感應(yīng)的電流則是語音電流。電場(chǎng)轉(zhuǎn)變磁場(chǎng)，磁場(chǎng)轉(zhuǎn)變電場(chǎng)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(hào)發(fā)送與接收的過程是，換向傳感器線圈共同合作，將放大的音頻信號(hào)電流，通過長(zhǎng)直導(dǎo)線形成隨音頻變化的交變磁場(chǎng)，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(hào)。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(chǎng)，換向傳感器線圈共同合作，這種帶有聲音信號(hào)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(hào)。新傳感器線圈芯，無錫東英電子有限公司。換向傳感器線圈共同合作</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="換向傳感器線圈共同合作,傳感器線圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637385477768094240/4150456.png"></div><p> 區(qū)別在距離跡線小于約1mm的場(chǎng)中。圖10d示出導(dǎo)線1020的一維模型與基準(zhǔn)矩形跡線1022在距跡線中心1mm的距離處的差異。單個(gè)矩形跡線1022的表示可以通過單導(dǎo)線配置和多導(dǎo)線配置兩者來實(shí)現(xiàn)?？梢钥闯?，該場(chǎng)與一維模型略有偏離。從圖10d可以看出，誤差不可忽略，但在兩種情況下，即使在1mm處，誤差也只有很小的分?jǐn)?shù)1％。由于接收線圈的大多數(shù)點(diǎn)相對(duì)于發(fā)射線圈的距離遠(yuǎn)大于1mm，因此1維導(dǎo)線模型在大多數(shù)應(yīng)用中可能就足夠了。也可以用三維塊狀元素來表示發(fā)射線圈，其中假定電流密度是均勻的。圖10e示出這種近似。如圖10e所示，這以適度的附加計(jì)算為代價(jià)將由發(fā)射線圈產(chǎn)生的磁場(chǎng)的建模誤差減小了一個(gè)數(shù)量級(jí)。因此，在步驟1006和步驟1010中，可以將跡線建模為一維跡線。因此，通過使用1維導(dǎo)線模型可以預(yù)先計(jì)算由發(fā)射線圈產(chǎn)生的源磁場(chǎng)。在一些實(shí)施例中，可以使用基于3d塊狀件元素的更高級(jí)的模型，如上所述，該模型可以產(chǎn)生大致相同的結(jié)果。這些模型可以使用有限元矩陣形式的計(jì)算，然而，此類模型可能需要許多元素，并且需要增加計(jì)算。如上文所討論的，類似于fem的模型可能使用太多的元素(1億多個(gè)網(wǎng)格元素)來達(dá)到所提出的一維模型的準(zhǔn)確性。浙江雙向傳感器線圈雙向傳感器線圈，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="換向傳感器線圈共同合作,傳感器線圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637385477964724951/743939.png"></div><p> 位置定位器系統(tǒng)410的準(zhǔn)確度可以被定義為在金屬目標(biāo)408從初始位置掃描到結(jié)束位置期間的位置的測(cè)量與該掃描的預(yù)期理想曲線之間的差。該結(jié)果以相對(duì)于全標(biāo)度的百分比表示，如圖5所示。在圖5中，pos0是來自位置定位系統(tǒng)410的測(cè)量值，并且輸出擬合是理想曲線。pos0是從控制器402的寄存器測(cè)量的值，而fs是全標(biāo)度的值。例如，對(duì)于16比特寄存器，fs為2e16-1＝65535。圖6示出通過上式確定的用fnl％fs表示的誤差。目標(biāo)是以盡可能佳的準(zhǔn)確性(例如，％fs或更小)產(chǎn)生位置感測(cè)。如果使用試錯(cuò)法設(shè)計(jì)pcb上的線圈設(shè)計(jì)，則可獲得的佳準(zhǔn)確性為％fs-3％fs。在pcb上形成的傳感器中，有兩個(gè)線圈和一個(gè)發(fā)射器線圈。測(cè)量位置的準(zhǔn)確性與線圈設(shè)計(jì)極為相關(guān)。pcb上的試錯(cuò)線圈設(shè)計(jì)已經(jīng)經(jīng)驗(yàn)性地嘗試解決這些問題。然而，這種簡(jiǎn)化但不準(zhǔn)確的方法只能考慮有限的問題。所有這些過程都無法得到成功的設(shè)計(jì)，這是因?yàn)檎麄€(gè)系統(tǒng)(線圈-目標(biāo)-跡線)要比容易解決的更復(fù)雜，并且，如果所得到的線圈設(shè)計(jì)將滿足期望的準(zhǔn)確性規(guī)范，則佳解決方案必須考慮更大量的參數(shù)。圖7a示出根據(jù)本發(fā)明的一些實(shí)施例的用于提供準(zhǔn)確的位置定位系統(tǒng)的印刷電路板上的線圈設(shè)計(jì)的算法700。</p><p> rx線圈104以以下方式被設(shè)計(jì)：隨著在整個(gè)線圈104上掃描金屬目標(biāo)124，在一個(gè)rx線圈(rxsin112)的端子處產(chǎn)生正弦電壓，在另一個(gè)rx線圈(rxcos110)的端子處產(chǎn)生余弦電壓。目標(biāo)相對(duì)于rx線圈104的位置調(diào)制在rx線圈104的端子處的電壓的幅度和相位。如圖1a所示和上面討論的，發(fā)射器線圈106、接收線圈104和發(fā)射/接收電路102可以被安裝在單個(gè)pcb上。此外，pcb可以被定位成使得金屬目標(biāo)124被定位在接收線圈104上方并且與接收線圈104間隔開特定間隔，即氣隙(ag)。金屬目標(biāo)124相對(duì)于其上安裝接收線圈104和發(fā)射器線圈106的pcb的位置可以通過處理由正弦定向線圈112和余弦定向線圈110生成的信號(hào)來確定。下面，描述在理論上理想的條件下對(duì)金屬目標(biāo)124相對(duì)于接收線圈104的位置的確定。在圖1b中，金屬目標(biāo)124位于位置。在該示例中，圖1b和圖2a、圖2b和圖2c描繪線性位置定位器系統(tǒng)的操作。線性定位器和圓形定位器二者的操作原理相同。在下面的討論中，通過提供因線圈110和線圈112和金屬目標(biāo)124的前緣的位置所引起的關(guān)于正弦定向線圈112的正弦操作的角度關(guān)系，給出關(guān)于余弦定向線圈110和正弦定向線圈112的構(gòu)造的位置。傳感器線圈配件，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="換向傳感器線圈共同合作,傳感器線圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637385478171072618/1595196.png"></div><p> 線圈是由導(dǎo)線一圈靠一圈地繞在絕緣管上，導(dǎo)線彼此互相絕緣，而絕緣管可以是空心的，也可以包含鐵芯或磁粉芯。線圈的電感用L表示，單位有亨利(H)、毫亨利(mH)、微亨利(μH)，1H=10^3mH=10^6μH。簡(jiǎn)介電感線圈是利用電磁感應(yīng)的原理進(jìn)行工作的器件。當(dāng)有電流流過一根導(dǎo)線時(shí)，就會(huì)在這根導(dǎo)線的周圍產(chǎn)生一定的電磁場(chǎng)，而這個(gè)電磁場(chǎng)的導(dǎo)線本身又會(huì)對(duì)處在這個(gè)電磁場(chǎng)范圍內(nèi)的導(dǎo)線發(fā)生感應(yīng)作用。對(duì)產(chǎn)生電磁場(chǎng)的導(dǎo)線本身發(fā)生的作用，叫做“自感“，即導(dǎo)線自己產(chǎn)生的變化電流產(chǎn)生變化磁場(chǎng)，這個(gè)磁場(chǎng)又進(jìn)一步影響了導(dǎo)線中的電流；對(duì)處在這個(gè)電磁場(chǎng)范圍的其他導(dǎo)線產(chǎn)生的作用，叫做“互感“。電感線圈的電特性和電容器相反，“通低頻，阻高頻“。高頻信號(hào)通過電感線圈時(shí)會(huì)遇到很大的阻力，很難通過；而對(duì)低頻信號(hào)通過它時(shí)所呈現(xiàn)的阻力則比較小，即低頻信號(hào)可以較容易的通過它。電感線圈對(duì)直流電的電阻幾乎為零。電阻，電容和電感，他們對(duì)于電路中電信號(hào)的流動(dòng)都會(huì)呈現(xiàn)一定的阻力，這種阻力我們稱之為“阻抗”。電感線圈對(duì)電流信號(hào)所呈現(xiàn)的阻抗利用的是線圈的自感。電感線圈有時(shí)我們把它簡(jiǎn)稱為“電感”或“線圈”，用字母“L”表示。繞制電感線圈時(shí)。高速傳感器線圈，無錫東英電子有限公司。換向傳感器線圈共同合作</p><p style="text-indent:25px">高速傳感器線圈芯，無錫東英電子有限公司。換向傳感器線圈共同合作</p><p> 本發(fā)明的實(shí)施例包括：仿真步驟704，其仿真位置定位系統(tǒng)線圈設(shè)計(jì)的響應(yīng)；以及，線圈設(shè)計(jì)調(diào)整算法712，其使用所仿真的響應(yīng)來調(diào)整線圈設(shè)計(jì)以獲得更好的準(zhǔn)確性。如上所述，位置傳感器遭受許多非理想性。首先，tx線圈所產(chǎn)生的磁場(chǎng)高度不均勻，并且由于這種不均勻性，目標(biāo)和rx線圈之間的間隙允許許多磁通量無法正確地被目標(biāo)屏蔽。另一個(gè)效果是，pcb底部上的rx線圈部分比pcb的頂部中的對(duì)應(yīng)部分捕獲更少的感應(yīng)磁通量。后，允許與控制器芯片連接的rx線圈的出口也產(chǎn)生可感測(cè)的偏移誤差。在線性和弧形傳感器中，還存在在傳感器的端部產(chǎn)生巨大的雜散場(chǎng)的強(qiáng)烈效應(yīng)。這后的效應(yīng)是線性和弧形設(shè)計(jì)中大多數(shù)誤差的原因。如上所述，線圈設(shè)計(jì)的優(yōu)化始于算法700的步驟704中的良好仿真。在迭代中，對(duì)算法700的步驟702中所輸入的初始線圈設(shè)計(jì)執(zhí)行仿真。根據(jù)一些實(shí)施例，仿真包括在意大利烏迪內(nèi)大學(xué)開發(fā)的渦電流求解算法。具體地，仿真算法的示例使用在以下發(fā)表文章中介紹的邊界積分方法(bim)：，“aboundaryintegralmethodforcomputingeddycurrents1nthinconductorsforarbitrarytopology(任意拓?fù)涞谋?dǎo)體中的渦電流計(jì)算的邊界積分方法)”，ieee磁學(xué)學(xué)報(bào)(transactionsonmagnetics)，第41卷，第3期。換向傳感器線圈共同合作</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3051773.html</p></div></div></div></div></div><div id="8n2r2i3" class="page-right twoColRt"><div 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