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clearfix"><h1>廣西數(shù)字毫歐表貼心服務深圳市茂迪機電設備供應</h1><div id="8bnc2p7" class="proBig"><div id="adfpduw" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szmdjd/637358930911396484/3333255.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="edfe73z" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szmdjd/637358930911396484/3333255.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="kovfoqs" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>廣西數(shù)字毫歐表,毫歐表</p><p><span>***更新：</span>2020-11-30 02:14:47</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="u7ga2fr" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市茂迪機電設備有限公司</a></p><p><span>聯(lián)系人：</span>黃富強</p><p><span>郵箱: </span>fuqiang.huang@maodi.net</p><p><span>電話: </span>13509625980</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.maodi.net</p><p><span>手機: </span>0755-83280136</p><p><span>地址: </span>深南大道6006號華豐大廈2803、2804</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="8ryapqx" class="page-proshow02"><p class="title">詳細說明</p><div id="iugi7np" class="box"><p><p> 德國GMC-I防爆環(huán)境**微歐表、毫歐表METRAHIT27EX-深圳茂迪-黃富強Metrahit27EX精密微歐表適用于測量易爆環(huán)境低阻值接觸電阻，例如飛機燃料箱內(nèi)連接處（Bonding檢測）的接觸電阻，以及飛機內(nèi)外部一些潛在的環(huán)境，也可測量飛機外表部分的接觸電阻（防雷和油芯測試）。德國GMC-I防爆環(huán)境**微歐表、毫歐表METRAHIT27EX應用METRAHIT|27EX是一個緊湊，堅固耐用和可靠的工具，廣西數(shù)字毫歐表，它適用于工廠，現(xiàn)場服務及實驗室的精確測量和記錄。同時該儀器適用于認證的潛在環(huán)境，嚴格參照ExII2GExiaIIAT4Gb.標準。調(diào)整校準儀器儀表中的分流器用于露天采礦，等電位連接系統(tǒng)以及工業(yè)和家庭應用產(chǎn)品或設備的接地連續(xù)性測試測試PCB和厚膜電路中的電纜電阻，布線，分流電阻測量繼電器，接觸器和斷路器中的接觸電阻測試熔斷器中的電阻，廣西數(shù)字毫歐表，以及大電流電路中的導體電阻測試變壓器，線圈，廣西數(shù)字毫歐表，小型電動機等的繞組電阻測量飛機放電電阻及飛機表面組件電阻。不間斷電源接觸電阻測試焊接部位接觸電阻測試。德國GMC-I防爆環(huán)境**微歐表、毫歐表METRAHIT27EX通用METRAHIT27EX微歐表使用了眾所周知的TH2（湯姆遜）和Wh2（惠斯通）測量電橋的現(xiàn)代替代方案，可提供擴展的測量范圍，更高的精度，更容易讀取。國產(chǎn)毫歐表好還是進口的毫歐表好。廣西數(shù)字毫歐表</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西數(shù)字毫歐表,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637358930911396484/3333255.png"></div><p> 可表示為：Δd=A/D轉換器的積分非線性誤差INL+A/D轉換器的微分非線性誤差DNL+量化誤差LSBΔm=被測量的電阻*比例誤差系數(shù)+系統(tǒng)常數(shù)誤差十隨機誤差上式中決定比例誤差系數(shù)的主要因素是恒流源精度、各個環(huán)節(jié)的溫漂和增益誤差等。決定系統(tǒng)常數(shù)誤差的主要因素是系統(tǒng)內(nèi)部線路、測試線路和各個環(huán)節(jié)的調(diào)零。決定隨機誤差的主要因素是隨機接觸電阻、系統(tǒng)噪聲和外部干擾。3關鍵電路選型理論和元器件數(shù)據(jù)資料表明，以齊納二極管為基準的精密電壓參考源的性能優(yōu)于以能帶為基準的恒流源，因此采用高性能的精密電壓參考源間接得到需要的精密相流源。電路如圖2所示。圖2高精密低溫漂恒流源電路REF102是10V精密電壓參考源，精度為±，溫漂為℃max，可滿足本系統(tǒng)電阻測量的要求。OPA111精密運算放大器作為電壓跟隨器，使得REF102的GND端和放大器的同相端相等，即R*為高精度、低溫漂的精密電阻，則流過RL的電流為精密恒定電流。整個電路等效為恒流源電路。恒流源擴展電路如圖3所示，運算放大器工作在開環(huán)狀態(tài)，由于同相端和反相端的壓差幾乎為零，運算放大器的偏置電流可以忽略不計，因此恒流源電流在NR上的壓降與VMOS場效應管的源極電流在R上的壓降必定相等。當選擇I1=1mA。廣西數(shù)字毫歐表便攜式毫歐表都有那些品牌，那個品牌的毫歐表好用？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西數(shù)字毫歐表,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637360195378652344/3580568.png"></div><p> 毫歐電阻表介紹，毫歐電阻：即阻值較小，一般小于1Ω的低阻值電阻。毫歐電阻又稱采樣電阻、電流檢測電阻、電流感測電阻、取樣電阻、微電阻。毫歐電阻主要有康銅電阻、錳銅電阻、低阻值貼片電阻。毫歐電阻一般具有導電能力強，過電流大的特點。目前國內(nèi)毫歐電阻生產(chǎn)商較多，研發(fā)能力參差不齊。 </p> <p> 毫歐電阻作用編輯毫歐電阻由其性能特點，往往在電路中用作采樣。由于阻值小，放在電路中對電路本身的影響很小，可以用于對線路中電流的采樣。一般來說，電阻放在電路里，可以用作反饋，將電流信號，轉化為電壓來測量或反饋。或者在線路中需要做過流保護時，電路設計簡單，實際操作成本低，安全可靠。 </p><p> 毫歐表”是一bai種精密測量低電阻的數(shù)du字式測量儀器。主zhi要用于測量電纜的導線電阻，開關dao、接插件、繼電器的接觸電阻，線圈、電動機、變壓器繞組的電阻以及金屬鉚接電阻。微電阻計和萬用表的區(qū)別是輸出電流和量程范圍不同。我以“GY339毫歐表”為例，舉例說明，“毫歐表”如何選型，要注意一下幾點： </p> <p> 1.測量范圍: 0.001-2000Ω,分辨率：1uΩ. </p> <p> 2.采用“四端子”測試技術，消除接觸電阻和引線電阻引起的誤差. </p> <p> 3.交直流兩用，內(nèi)置鉛酸蓄電池供電，便攜式機箱。 </p> <p> <br /> 微電阻計，主要用于測量電阻的阻值。微電阻計具有元件測試分類所必需的比較器功能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西數(shù)字毫歐表,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637358930929599609/788892.png"></div><p> 當繼電器發(fā)生吸合后，再逐漸降低供電電壓，當聽到繼電器再次發(fā)生釋放聲音時。記下此時的電壓和電流，亦可嘗試多幾次而取得平均的釋放電壓和釋放電流。一般情況下，繼電器的釋放電壓約在吸合電壓的10～50％，如果釋放電壓太?。ㄐ∮?/10的吸合電壓），則不能正常使用了，這樣會對電路的穩(wěn)定性造成威脅，工作不可靠。繼電器的電符號和觸點形式繼電器線圈在電路中用一個長方框符號表示，如果繼電器有兩個線圈，就畫兩個并列的長方框。同時在長方框內(nèi)或長方框旁標上繼電器的文字符號“J”。繼電器的觸點有兩種表示方法：一種是把它們直接畫在長方框一側，這種表示法較為直觀。另一種是按照電路連接的需要，把各個觸點分別畫到各自的控制電路中，通常在同一繼電器的觸點與線圈旁分別標注上相同的文字符號，并將觸點組編上號碼，以示區(qū)別。繼電器的觸點有三種基本形式：1、動合型（H型）線圈不通電時兩觸點是斷開的，通電后，兩個觸點就閉合。以合字的拼音字頭“H”表示。2、動斷型（D型）線圈不通電時兩觸點是閉合的，通電后兩個觸點就斷開。用斷字的拼音字頭“D”表示。3、轉換型（Z型）這是觸點組型。這種觸點組共有三個觸點，即中間是動觸點，上下各一個靜觸點。符合EN 61557-4 / VDE 0413第4部分對于接地，保護和等電位連接導體的低電阻測量。海南飛機上的毫歐表使用</p><p style="text-indent:25px">萬用表和毫歐表，絕緣和線圈測試儀，用于電機、電氣系統(tǒng)診斷及維修。廣西數(shù)字毫歐表</p><p> 德國GMC-I防爆環(huán)境**微歐表、毫歐表METRAHIT27EX-深圳市茂迪機電設備有限公司黃富強Metrahit27EX精密微歐表適用于測量易爆環(huán)境低阻值接觸電阻，例如飛機燃料箱內(nèi)連接處（Bonding檢測）的接觸電阻，以及飛機內(nèi)外部一些潛在的環(huán)境，也可測量飛機外表部分的接觸電阻（防雷和油芯測試）。德國GMC-I防爆環(huán)境**微歐表、毫歐表METRAHIT27EX應用METRAHIT|27EX是一個緊湊，堅固耐用和可靠的工具，它適用于工廠，現(xiàn)場服務及實驗室的精確測量和記錄。同時該儀器適用于認證的潛在環(huán)境，嚴格參照ExII2GExiaIIAT4Gb.標準。調(diào)整校準儀器儀表中的分流器用于露天采礦，等電位連接系統(tǒng)以及工業(yè)和家庭應用產(chǎn)品或設備的接地連續(xù)性測試測試PCB和厚膜電路中的電纜電阻，布線，分流電阻測量繼電器，接觸器和斷路器中的接觸電阻測試熔斷器中的電阻，以及大電流電路中的導體電阻測試變壓器，線圈，小型電動機等的繞組電阻測量飛機放電電阻及飛機表面組件電阻。不間斷電源接觸電阻測試焊接部位接觸電阻測試。德國GMC-I防爆環(huán)境**微歐表、毫歐表METRAHIT27EX通用METRAHIT27EX微歐表使用了眾所周知的TH2（湯姆遜）和Wh2（惠斯通）測量電橋的現(xiàn)代替代方案，可提供擴展的測量范圍。廣西數(shù)字毫歐表</p><p style="text-indent:25px">深圳市茂迪機電設備有限公司致力于儀器儀表，是一家貿(mào)易型的公司。公司業(yè)務涵蓋電能質(zhì)量分析儀，功率分析儀，亮度計，色差儀等，價格合理，品質(zhì)有保證。公司秉持誠信為本的經(jīng)營理念，在儀器儀表深耕多年，以技術為先導，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造儀器儀表良好品牌。茂迪憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: 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