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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>四川省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>甘肅史托斯STORZ22200020攝像機(jī)主機(jī)芯片級(jí)維修,22200020</p><p><span>***更新：</span>2021-01-21 09:09:30</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="saczbd3" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">成都鐳伙科技有限公司</a></p><p><span>聯(lián)系人：</span>邱鋒</p><p><span>郵箱: </span>cdleihuokeji@163.com</p><p><span>電話(huà): </span>13982269628</p><p><span>傳真: </span>028_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>028-8444323</p><p><span>地址: </span>新都區(qū)踏水路創(chuàng)想大廈2單元2606</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="nwt3sub" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="qjbsugy" class="box"><p><p> 對(duì)耗盡層、結(jié)電容、PN結(jié)的一些理解擴(kuò)散、漂移：多子的運(yùn)動(dòng)稱(chēng)為擴(kuò)散；少子的運(yùn)動(dòng)稱(chēng)為漂移。耗盡層、結(jié)電容、PN結(jié)：PN結(jié)中由于p區(qū)和n區(qū)的電子空穴發(fā)生中和，在結(jié)中會(huì)形成耗盡區(qū)，PN結(jié)因此可以叫耗盡層，由于PN結(jié)反向不導(dǎo)通，因此可以叫做阻擋層。耗盡層是指PN結(jié)中在漂移運(yùn)動(dòng)和擴(kuò)散作用的雙重影響下載流子數(shù)量非常少的一個(gè)高電阻區(qū)域。耗盡層的寬度與材料本身性質(zhì)、溫度以及偏置電壓的大小有關(guān)。在PN結(jié)中，由于載流子濃度的梯度，空穴、電子會(huì)通過(guò)擴(kuò)散作用的形式分別向摻雜濃度低的N區(qū)、P區(qū)移動(dòng)，P區(qū)流走空穴流進(jìn)電子并大部分中和P區(qū)空穴，剩下少量電子，N區(qū)流走電子流進(jìn)空穴并中和N區(qū)電子，剩下少量空穴。擴(kuò)散作用產(chǎn)生的少數(shù)載流子（P區(qū)多出的電子和N區(qū)多出的空穴）會(huì)產(chǎn)生一個(gè)較強(qiáng)的內(nèi)建電場(chǎng)。這個(gè)電場(chǎng)會(huì)使載流子發(fā)生漂移運(yùn)動(dòng)，甘肅史托斯STORZ22200020攝像機(jī)主機(jī)芯片級(jí)維修，這一運(yùn)動(dòng)與擴(kuò)散的方向正好相反，二者會(huì)達(dá)成動(dòng)態(tài)平衡。這兩種作用的結(jié)果是在PN結(jié)處形成一個(gè)電子、空穴都很稀少的耗盡層，即其中的載流子電子和空穴都被耗盡了。因?yàn)楹谋M層中載流子少，電阻大，甘肅史托斯STORZ22200020攝像機(jī)主機(jī)芯片級(jí)維修，甘肅史托斯STORZ22200020攝像機(jī)主機(jī)芯片級(jí)維修，其特征類(lèi)似電容，這一電容也被稱(chēng)為結(jié)電容。PN結(jié)反偏會(huì)使耗盡層變厚。把1塊P型半導(dǎo)體和1快N型半導(dǎo)體緊密聯(lián)接在一起（只能用化學(xué)方法連接）時(shí)。維修公司及維修人員專(zhuān)業(yè)資質(zhì)缺乏要求.甘肅史托斯STORZ22200020攝像機(jī)主機(jī)芯片級(jí)維修</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甘肅史托斯STORZ22200020攝像機(jī)主機(jī)芯片級(jí)維修,22200020" src="https://tyunfile.71360.com/WaterMark/UploadFile/leihuo/637330195892207031/206668.png"></div><p> 溫度變化率≤30C/h，濕度75%，濕度變化率在≤5%/h。3．4CT對(duì)球管的各種工作參數(shù)的檢測(cè)，包括CT球管的kV、Ma、溫度等。3．5高壓電纜與球管的接觸良好，接觸零部件無(wú)雜質(zhì)，每?jī)赡隀z查一次。4球管的常見(jiàn)故障及維修針對(duì)球管及其高壓引起的故障現(xiàn)象，按照組成我們粗略的歸納如下：4．1燈絲問(wèn)題一般燈絲開(kāi)路或半開(kāi)路故障表現(xiàn)為：加高壓后不曝光，無(wú)管電流或電流不穩(wěn)定，提示燈絲開(kāi)路（或LowmA），在查燈絲供電又正常的情況下，測(cè)量燈絲電阻開(kāi)路多為球管燈絲開(kāi)路。需要注意的是：有時(shí)燈絲處于半開(kāi)路狀態(tài)，時(shí)通時(shí)不通，工作時(shí)加熱引起開(kāi)路，而斷電時(shí)冷卻又連通，往往引起誤判，需反復(fù)鑒別。4．2管芯真空度下降或管芯玻殼破損故障表現(xiàn)為：查看故障代碼一般提示過(guò)載報(bào)警。一種情況是管芯長(zhǎng)期使用后燈絲蒸發(fā)，靶面受損氣化，管芯真空度降低；二是球管長(zhǎng)時(shí)間不使用，管芯有氣體滲入，或芯殼老化開(kāi)裂，有油滲入，高溫炭化產(chǎn)生氣體，管芯真空度下降。4．3旋轉(zhuǎn)陽(yáng)極不轉(zhuǎn)故障表現(xiàn)：報(bào)警顯示旋轉(zhuǎn)陽(yáng)極（Rotor）故障。此故障一般有以下兩種原因：一是旋轉(zhuǎn)陽(yáng)極定子線圈損壞（開(kāi)路或短路）；二是旋轉(zhuǎn)陽(yáng)極轉(zhuǎn)子卡死或軸承磨損后間隙過(guò)大，通電后分布磁場(chǎng)不均衡而吸死。儋州STORZ史托斯22200020攝像機(jī)屏蔽線更換或修復(fù)在某些領(lǐng)域尤其突出，譬如在內(nèi)窺鏡領(lǐng)域幾乎看不到國(guó)產(chǎn)品牌的身影；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甘肅史托斯STORZ22200020攝像機(jī)主機(jī)芯片級(jí)維修,22200020" src="https://tyunfile.71360.com/WaterMark/UploadFile/leihuo/637330195937509765/7564789.png"></div><p> 為防止Gantry內(nèi)的球管及逆變器組件等在搬運(yùn)過(guò)程中旋轉(zhuǎn)而引起損壞，要用特定工具將其固定起來(lái)，搬動(dòng)到安裝地點(diǎn)再將其拆下來(lái)。在機(jī)器的Gantry及Table的定位過(guò)程中，我們用廠家提供的圖紙?jiān)诘厣献屑?xì)定位，反復(fù)校正，確認(rèn)無(wú)誤后，才開(kāi)始用電鉆打孔，將Gantry及Table對(duì)準(zhǔn)放好后，用膨脹螺絲固定好，在這過(guò)程中還應(yīng)注意Gantry及ScanTable的水平情況，使其盡量水平。配線：這項(xiàng)工作需要仔細(xì)來(lái)完成，按照拆卸時(shí)的記錄，仔細(xì)的接好各接頭，接完后，互相檢查一下是否正確，電源留到后面去接。：由于是舊機(jī)器，各項(xiàng)系數(shù)都已預(yù)先設(shè)置好，調(diào)試相對(duì)比較簡(jiǎn)單一些。(1)確認(rèn)電壓、地線、相序無(wú)誤，尤其是相序非常重要，一定要測(cè)對(duì)，否則會(huì)引起Gantry反轉(zhuǎn)，損壞機(jī)器；(2)機(jī)械動(dòng)作的確認(rèn)，包括Gantry掃描角的確認(rèn)，Table的升降，TableTop的前后運(yùn)動(dòng)，Tile及Scanner的旋轉(zhuǎn)等(3)調(diào)試：由于是舊機(jī)器，其各項(xiàng)參數(shù)的調(diào)試在裝機(jī)時(shí)皆已完成，無(wú)須重新測(cè)試，但有一項(xiàng)必須重新校正--體模校正，這是非常重要的一項(xiàng)。做校正時(shí)應(yīng)注意：(1)先做各層厚的aircalibration(空氣校正)；(2)按照體模直徑由小到大順序作校正；(3)找好中心(誤差應(yīng)小于等于)。以上三步完成后再作CT值的校正。</p><p> 滑環(huán)組件包括弱電控制信號(hào)刷和強(qiáng)電動(dòng)力電源刷兩部分，材質(zhì)上分為石墨碳刷、含金屬石墨碳刷和金屬刷三種，電源刷寬大，信號(hào)刷相對(duì)較小，它們分別由多個(gè)相同的電刷并聯(lián)使用，以增大與金屬滑環(huán)的接觸面積，以保證能量和信息的可靠傳遞。我們的機(jī)器使用的主要是石墨碳刷和少數(shù)含金屬石墨碳刷?；h(huán)系統(tǒng)在觸點(diǎn)接觸不良的情況下會(huì)導(dǎo)致微處理器之間通訊數(shù)據(jù)傳送錯(cuò)誤，而發(fā)生類(lèi)似的情況。于是打開(kāi)機(jī)架后蓋，拆開(kāi)滑環(huán)觸點(diǎn)集成檢查，發(fā)現(xiàn)碳刷觸點(diǎn)均磨損嚴(yán)重，并且積聚了較厚的粉末，但是其長(zhǎng)度還在正常范圍。碳刷上有一三角形標(biāo)記，當(dāng)碳刷磨損到該標(biāo)記時(shí)，就應(yīng)該更換。用吸塵器把積聚的粉末抽吸干凈，再用脫脂紗布蘸無(wú)水乙醇清潔電刷觸點(diǎn)并把整個(gè)滑環(huán)也擦拭一遍，開(kāi)機(jī)后再行校正，掃描則一切順利正常。但是到了第二天又出現(xiàn)相同的情況，于是又把電刷觸點(diǎn)及滑環(huán)再清潔一遍，可是該故障仍未根除。又考慮是否地線接地失效，對(duì)機(jī)器干擾導(dǎo)致，于是又另埋設(shè)地線，還是未能排除該故障。向GE公司維修工程師咨詢(xún)，認(rèn)為該故障首先應(yīng)該考慮是滑環(huán)接觸不良所導(dǎo)致的問(wèn)題，外界電源波動(dòng)、系統(tǒng)軟件故障的可能性不大，也可能是機(jī)房環(huán)境濕度過(guò)低，空氣干燥。監(jiān)管部門(mén)也不會(huì)在器械維修時(shí)派員進(jìn)行監(jiān)管，不掌握醫(yī)療器械維修信息。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甘肅史托斯STORZ22200020攝像機(jī)主機(jī)芯片級(jí)維修,22200020" src="https://tyunfile.71360.com/WaterMark/UploadFile/leihuo/637330195371904297/1371322.png"></div><p> 設(shè)備型號(hào)機(jī)器型號(hào)：西門(mén)子ArtisZeeCeiling軟件版本：VC14J故障現(xiàn)象圖像傳輸至參考屏后，參考屏開(kāi)始閃爍故障分析以及解決方案首先需要排除顯示器本身是否有問(wèn)題。對(duì)調(diào)Live顯示器和Assist顯示器后，故障并未轉(zhuǎn)移，接入Assist信號(hào)的原Live顯示器開(kāi)始閃爍，由此證明顯示器本身沒(méi)有問(wèn)題。2、測(cè)量視頻信號(hào)的5v電源，穩(wěn)定。3、將Assist視頻信號(hào)的電源與Live視頻信號(hào)的電源進(jìn)行交換，故障依舊;4、對(duì)調(diào)光纖轉(zhuǎn)接頭，故障依舊存在，說(shuō)明閃爍可能是由于前端光纖信號(hào)不穩(wěn)定所致。5、拆開(kāi)AXIS，將IAS后面的兩根視頻輸出電纜進(jìn)行對(duì)調(diào)，Live屏幕顯示內(nèi)容和Assist屏幕顯示的內(nèi)容已經(jīng)對(duì)調(diào)，但是閃爍的仍然是原來(lái)的參考屏(現(xiàn)在顯示的Live信息)，可以確定IAS輸出信號(hào)前是穩(wěn)定的;6、還原步驟5的操作，對(duì)調(diào)VDX后面的Live信號(hào)和Assist信號(hào)光纖，顯示信號(hào)對(duì)調(diào)，故障轉(zhuǎn)移至原來(lái)的Live顯示器，所以故障在光纖前端;7、還原步驟6的操作，對(duì)調(diào)VDX后的兩個(gè)轉(zhuǎn)接頭，故障轉(zhuǎn)移，確認(rèn)是Assist信號(hào)的轉(zhuǎn)接頭故障，導(dǎo)致信號(hào)不穩(wěn)定，從而導(dǎo)致信號(hào)閃爍。8、更換新的Assist轉(zhuǎn)接頭，故障解決，機(jī)器恢復(fù)正常。所以維修后的醫(yī)療器械幾乎不會(huì)經(jīng)過(guò)檢驗(yàn)便重新投入使用，是否符合相應(yīng)標(biāo)準(zhǔn)無(wú)法保障。甘肅史托斯STORZ22200020攝像機(jī)主機(jī)芯片級(jí)維修</p><p style="text-indent:25px">將 “維修“變?yōu)椤肮芾怼安拍芨行У慕鉀Q行業(yè)之痛。甘肅史托斯STORZ22200020攝像機(jī)主機(jī)芯片級(jí)維修</p><p> 故障現(xiàn)象：在平床方向攝影時(shí)，OTS(球管懸吊架)在長(zhǎng)軸方向視野中心逐漸偏離數(shù)字胸片架中心線，且有逐漸增長(zhǎng)的態(tài)勢(shì)，是向立柱遠(yuǎn)側(cè)偏移．約每天偏移2cm；在立位胸片架方向攝影時(shí)，OTS長(zhǎng)軸方向移動(dòng)時(shí)SID顯示數(shù)據(jù)亦是與實(shí)測(cè)距離逐漸偏差增大；FOV(視野)較正常時(shí)明顯增大；OTS與數(shù)字胸片架上、下、左、右追蹤沒(méi)問(wèn)題，可以攝影。故障分析：根據(jù)上述現(xiàn)象，首先可以確定X線發(fā)生與圖像采集系統(tǒng)是正常的。SID數(shù)據(jù)的顯示．FOV視野的大小，均與自動(dòng)追蹤系統(tǒng)有關(guān)。自動(dòng)追蹤系統(tǒng)主要的采集部件是編碼器：本機(jī)在兩個(gè)月前曾出現(xiàn)編碼器因鎖止螺絲松動(dòng)導(dǎo)致自動(dòng)追蹤失調(diào)故障：故障點(diǎn)初步判斷仍在編碼器相關(guān)部件上，并且是在OTS長(zhǎng)軸方向運(yùn)動(dòng)檢測(cè)的編碼器．根據(jù)上述分析，對(duì)OTS長(zhǎng)軸方向的編碼器進(jìn)行運(yùn)動(dòng)觀察，發(fā)現(xiàn)編碼器外齒輪與內(nèi)軸上的傳動(dòng)齒輪能同步運(yùn)動(dòng)，鎖止螺絲沒(méi)有松動(dòng)。初步確定故障系編碼器采集數(shù)據(jù)逐漸漂移所致，為編碼器采集數(shù)據(jù)不準(zhǔn)確。故障檢修：1．根據(jù)上述現(xiàn)象與檢查情況，與廠方取得聯(lián)系，鎖定為編碼器故障．并寄來(lái)同型號(hào)編碼器。2．將新編碼器換上。3．新編碼器數(shù)據(jù)未被電腦核對(duì)，需對(duì)OTS長(zhǎng)軸方向進(jìn)行重新調(diào)試。4．調(diào)試步驟如下：1)進(jìn)入管理員權(quán)限。甘肅史托斯STORZ22200020攝像機(jī)主機(jī)芯片級(jí)維修</p><p style="text-indent:25px">成都鐳伙科技有限公司是一家電子技術(shù)研究開(kāi)發(fā)及轉(zhuǎn)讓、電氣設(shè)備、醫(yī)療設(shè)備維護(hù)服務(wù)、機(jī)械設(shè)備的設(shè)計(jì)、銷(xiāo)售；電器用品、醫(yī)療器械；貨物及技術(shù)進(jìn)出口。專(zhuān)業(yè)維修直管硬鏡、攝像系統(tǒng)、冷光源、氣腹機(jī)、動(dòng)力系統(tǒng)、灌注泵、動(dòng)力系統(tǒng)手柄、超聲刀手柄。軟質(zhì)器械激光焊接。的公司，是一家集研發(fā)、設(shè)計(jì)、生產(chǎn)和銷(xiāo)售為一體的專(zhuān)業(yè)化公司。成都鐳伙科技擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專(zhuān)業(yè)研發(fā)團(tuán)隊(duì)，以高度的專(zhuān)注和執(zhí)著為客戶(hù)提供內(nèi)窺鏡以及維修周邊，動(dòng)力系統(tǒng)及手柄附件維修，攝像系統(tǒng)主機(jī)及攝像頭維修，手術(shù)器械類(lèi)維修。成都鐳伙科技致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶(hù)產(chǎn)品上的貼心，為用戶(hù)帶來(lái)良好體驗(yàn)。成都鐳伙科技創(chuàng)始人張成亮，始終關(guān)注客戶(hù)，創(chuàng)新科技，竭誠(chéng)為客戶(hù)提供良好的服務(wù)。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2945323.html</p></div></div></div></div></div><div id="8tv8rt3" class="page-right twoColRt"><div id="adv8b2w" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lphzrd3" class="recomPic likePro"><a 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