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class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/bbrq/637195530323876953/7180198.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3czbyvr" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>安徽省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>南京劃圓刀夾代加工</p><p><span>***更新：</span>2020-05-28 10:10:19</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="shjg3ml" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">蚌埠瑞強(qiáng)精密機(jī)械制造有限公司</a></p><p><span>聯(lián)系人：</span>姚瑞</p><p><span>郵箱: </span>326829053@qq.com</p><p><span>電話: </span>19805522982</p><p><span>傳真: </span>0552_4120589</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0552-2151855</p><p><span>地址: </span>安徽省蚌埠市高新開發(fā)區(qū)興華路188號</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="u7pw8pr" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ti3e2ce" class="box"><p><p> 霍爾元件的結(jié)構(gòu)及工作原理霍爾元件的結(jié)構(gòu)及工作原理霍爾元件是根據(jù)霍爾效應(yīng)進(jìn)行磁電轉(zhuǎn)換的磁敏元件，其典型的工作原理圖如圖所示?；魻栐且粋€n型半導(dǎo)體薄片，若在其相對兩側(cè)通以控制電流i，而在薄片垂直方向加以磁場氏則在半導(dǎo)體另外兩側(cè)便會產(chǎn)生一個大小與電流，和磁場b的乘積成工比的電壓。這個現(xiàn)象就是霍爾效應(yīng)，所產(chǎn)生的電壓叫霍爾電壓ur.式中:uh---霍爾電壓；rh---霍爾系數(shù)；d---霍爾元件的厚度;i---通過霍爾元件的電流;b---加在霍爾元件上的磁場磁力線密度;---元件形狀函數(shù)，其中l(wèi)為元件的長度，w為元件的寬度。從上面的公式可以看出，霍爾電壓正比于電流強(qiáng)度和磁場強(qiáng)度，且與霍爾元件的形狀有關(guān)。在電流強(qiáng)度恒定以及霍爾元件形狀確定的條件下，霍爾電壓正比于磁場強(qiáng)度。當(dāng)所加磁場方向改變時，霍爾電壓的符號也隨之改變因此，南京劃圓刀夾代加工，霍爾元件可以用來測量磁場的大小及方向。圖:霍爾效應(yīng)原理圖霍爾元件常采用鍺、硅、砷化鎵、砷化銦及銻化鋼等半導(dǎo)體制作。用銻化銦半導(dǎo)體制成的霍爾元件靈敏度比較高，但受溫度的影響較大。用鍺半導(dǎo)體制成的霍爾元件，南京劃圓刀夾代加工，南京劃圓刀夾代加工，雖然靈敏度較低，但它的溫度特性及線性度較好。目前使用銻化銦霍爾元件的場合較多。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京劃圓刀夾代加工" src="http://tyunfile.71360.com/UploadFile/bbrq/637195530323876953/7180198.jpg"></div><p style="text-indent:25px">超精密加工技術(shù)，是現(xiàn)代機(jī)械制造業(yè)**主要的發(fā)展方向之一。在提高機(jī)電產(chǎn)品的性能、質(zhì)量和發(fā)展高新技術(shù)中起著至關(guān)重要的作用，并且已成為在國際競爭中取得成功的關(guān)鍵技術(shù)。超精密加工是指亞微米級(尺寸誤差為0.3～0.03?m，表面粗糙度為Ra0.03～0.005?m)和納米級(精度誤差為0.03?m，表面粗糙度小于 Ra0.005?m)精度的加工。實現(xiàn)這些加工所采取的工藝方法和技術(shù)措施，則稱為超精加工技術(shù)。加之測量技術(shù)、環(huán)境保障和材料等問題，人們把這種技術(shù)總稱為超精工程。超精密加工主要包括三個領(lǐng)域：超精密切削加工如金剛石刀具的超精密切削，可加工各種鏡面。它已成功地解決了用于激光核聚變系統(tǒng)和天體望遠(yuǎn)鏡的大型拋物面鏡的加工。超精密磨削和研磨加工如高密度硬磁盤的涂層表面加工和大規(guī)模集成電路基片的加工。超精密特種加工如大規(guī)模集成電路芯片上的圖形是用電子束、離子束刻蝕的方法加工，線寬可達(dá)0.1?m。如用掃描隧道電子顯微鏡(STM)加工，線寬可達(dá)2～5nm。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京劃圓刀夾代加工" src="http://tyunfile.71360.com/WaterMark/UpLoadFile/bbrq/2019/9/637030276064197042/6370302760641970428604715.jpg"></div><p style="text-indent:25px">蚌埠瑞強(qiáng)精密機(jī)械制造有限公司堅持“以人為本”的企業(yè)理念，擁有一支專業(yè)的員工隊伍，力求提供更好的產(chǎn)品和服務(wù)回饋社會，并歡迎廣大新老客戶光臨惠顧，真誠合作、共創(chuàng)美好未來。蚌埠瑞強(qiáng)精密機(jī)械——您可信賴的朋友，公司地址：安徽省蚌埠市高新開發(fā)區(qū)興華路188號。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京劃圓刀夾代加工" src="http://tyunfile.71360.com/UpLoadFile/bbrq/2019/8/637024402089164675/6370244020891646756684951.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/67063.html</p></div></div></div></div></div><div id="7m8xzln" class="page-right twoColRt"><div id="dnkmdkw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ejgd2vs" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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