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href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_dgyqybwr/">電工儀器儀表</a>?<a href="http://www.cdcfah.com/cp/third-dgyqybwr_dzclybxx/">電阻測量儀表</a>?海南fluke數(shù)字毫歐表 **** 深圳市茂迪機電設備供應</p><div id="8fm3a8l" class="leftbox clearfix"><h1>海南fluke數(shù)字毫歐表 **** 深圳市茂迪機電設備供應</h1><div id="y4r3nk3" class="proBig"><div id="izbik8w" 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="3pby2ur" 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="kbif7gs" 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>產品關鍵詞：</span>海南fluke數(shù)字毫歐表,毫歐表</p><p><span>***更新：</span>2020-11-29 08:17:02</p><p><span id="click" >瀏覽次數(shù)：8次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="j328krl" 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="amy3ub7" class="page-proshow02"><p class="title">詳細說明</p><div id="txjlnuo" class="box"><p><p> 確保經久耐用?！暨@款DO7Plus加強型具有一個帶背光燈的液晶顯示面板，標準電腦式鍵盤，通過選購PT100探針實現(xiàn)溫度補償功能。內置有銅和鋁的溫度系數(shù)，使用者也可以自行設定而不必選購PT100，海南fluke數(shù)字毫歐表，只利用一個普通溫度計同樣可達到溫度補償功能?！魞戎萌鋮s曲線設計，帶有實時繪圖并顯示在液晶屏上的功能。數(shù)據記錄的記憶內容可以被繪制成圖表形式，并且當t=0時曲線擬合來計算峰值電阻的值。◆這款儀器的顯示長度達到五位60000數(shù)，并且自動平均正向和反向測量以消除熱電動勢引起的誤差。◆改良型的連接導線及接口，使得USB和RS232都可用于數(shù)據下載?！魞戎么鎯ζ骺杀Ａ?000個讀數(shù)，并且讀數(shù)可標有時間，海南fluke數(shù)字毫歐表，均被顯示在液晶顯示屏上?；蚴褂?*提供的軟件進行下載，作為CSV文檔存儲，在計算機中用于以后的進一步分析?！魯?shù)據記錄存儲器使用**先進的FRAM技術，可提供無限的讀/寫循環(huán)和超過10年的數(shù)據保持能力，無需依賴于電池供電?！魞x器有內置可充電電池，在10A時可1小時連續(xù)測量使用，在所有其他量程時，海南fluke數(shù)字毫歐表，可20小時連續(xù)使用。關鍵特征：◇這款DO7Plus加強型是一款**高10A微歐表。高美測儀一體式絕緣和毫歐萬用表。海南fluke數(shù)字毫歐表</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="海南fluke數(shù)字毫歐表,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637358930911396484/3333255.png"></div><p> 毫bai歐表”是一種精密測量低電阻的數(shù)字式測量儀du器。主要zhi用于測量電纜的導線電阻，開關、接插件、dao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，內置鉛酸蓄電池供電，便攜式機箱。 </p> <p> <br /> 海南毫歐表和兆歐表區(qū)別符合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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="海南fluke數(shù)字毫歐表,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637358930929599609/788892.png"></div><p> 簡單的毫歐電阻測量電路在搞電路設計時，有時需要測量一個線圈、一小段導線或PCB板某段銅箔的電阻，由于這些電阻都在毫歐級，一般的數(shù)字萬用表根本無法測量這么小的電阻。下面介紹一個簡單的毫歐電阻測量電路，配合普通的數(shù)字萬用表使用即可精確測量0.0001Ω以上的小電阻。 </p> <p> <p> 如圖所示為一個簡單的毫歐電阻測量電路。圖中的三端可調穩(wěn)壓集成電路LM317在這里接成一個恒流源使用。其輸出的恒定電流為1.25V/R，若電阻R取1.25Ω，則輸出的恒定電流為1.000A。 </p> <p> Rx為被測的毫歐電阻，這里假定要測量一個0.115Ω的電阻，測試的恒定電流為1.000A，則Rx兩端的電壓為0.115V，此時我們用數(shù)字萬用表的直流2V檔測量一下Rx兩端的電壓便知該電阻為0.115Ω。 </p> <p> 在測試電流為1.000A時，若用數(shù)字萬用表直流200mV檔測量的讀數(shù)應為mΩ。譬如用萬用表直流200mV檔測量PCB板接地銅箔的壓降顯示為2.3mV，則表示該段銅箔的電阻為2.3mΩ，即0.0023Ω。 </p> </p><p> 飛機上，通常利用機體作為一根供電導線。為了保證飛機的正常供電，要求從機頭到機尾的機體電阻必須小于，即5毫歐姆，才不至于影響飛機的正常供電。以往對于特低電阻值的測量通常采用比較的方法，即手動調節(jié)電橋平衡，在精密電阻箱上得到讀數(shù)，此方法既慢又不準確。即使采用6位半的高精度數(shù)字表直接測量電阻，其電阻測量的分辨率也只能達到10毫歐姆。這說明測量機體電阻是一個比較困難的**阻值測量問題。2系統(tǒng)設計與誤差分析將測試線路及測試儀內部的線路電阻考慮在內時，電阻值的測量范圍要達到100毫歐姆；為了準確測量出機體電阻，分辨率要達到。從理論上說采用24bit的A/D轉換器，若輸入量程為5V，則分辨率可達：LSB=5/(224-1)=。但這省略了一個前提：被測量信號的信噪比必須非常高。如果線路的噪聲達到1mV，那么即使1A電流在1毫歐姆電阻上產生的1mV電壓信號也檢測不出來。根據需要測量的電阻值范圍和對被測量信號信噪比的要求，設計的系統(tǒng)原理結構如圖1所示。圖1測試系統(tǒng)原理圖測試系統(tǒng)的誤差分為量化誤差Δd和模擬誤差Δm兩部分。德國高美測儀進口毫歐表，百年德企，品質保障，值得信賴！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="海南fluke數(shù)字毫歐表,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637358930969238281/9536197.png"></div><p> 從而達到了在電路中的導通、切斷的目的。對于繼電器的“常開、常閉”觸點?？梢赃@樣來區(qū)分：繼電器線圈未通電時處于斷開狀態(tài)的靜觸點，稱為“常開觸點”；處于接通狀態(tài)的靜觸點稱為“常閉觸點”。2、熱敏干簧繼電器的工作原理和特性熱敏干簧繼電器是一種利用熱敏磁性材料檢測和控制溫度的新型熱敏開關。它由感溫磁環(huán)、恒磁環(huán)、干簧管、導熱安裝片、塑料襯底及其他一些附件組成。熱敏干簧繼電器不用線圈勵磁，而由恒磁環(huán)產生的磁力驅動開關動作。恒磁環(huán)能否向干簧管提供磁力是由感溫磁環(huán)的溫控特性決定的。3、固態(tài)繼電器（SSR）的工作原理和特性固態(tài)繼電器是一種兩個接線端為輸入端，另兩個接線端為輸出端的四端器件，中間采用隔離器件實現(xiàn)輸入輸出的電隔離。固態(tài)繼電器按負載電源類型可分為交流型和直流型。按開關型式可分為常開型和常閉型。按隔離型式可分為混合型、變壓器隔離型和光電隔離型，以光電隔離型為**多。繼電器主要產品技術參數(shù)1、額定工作電壓是指繼電器正常工作時線圈所需要的電壓。根據繼電器的型號不同，可以是交流電壓，也可以是直流電壓。2、直流電阻是指繼電器中線圈的直流電阻，可以通過***表測量。3、吸合電流是指繼電器能夠產生吸合動作的**小電流。數(shù)字電橋毫歐表哪里的性價比高？找深圳茂迪黃富強！海南fluke數(shù)字毫歐表</p><p style="text-indent:25px">數(shù)字式毫歐表的使用方法，視頻教程哪里有？找深圳茂迪黃富強。海南fluke數(shù)字毫歐表</p><p> 作為通用測量和測試儀器，它通過給待測電阻施加持續(xù)的測試電流的方式來測量電阻值，并存儲記錄于內存中。德國GMC-I防爆環(huán)境**微歐表、毫歐表METRAHIT27EX操作簡便操作非常簡單，只需使用隨附的測量電纜開爾文夾（KC4）或選配的4極開爾文探針（KC27）將待測低電阻設備連接到儀器，然后選擇理想的測量范圍。測量值存儲和數(shù)據導出接口每個METRAHIT27都配有一個測量值存儲模塊，因此可用作所有測量功能的數(shù)據記錄器或記錄儀。測量結果可以通過作為標準設備提供的光學接口離線傳輸?shù)絇C，或者通過可選的雙向適配器在線傳輸。以這種方式，例如，特征電壓和溫度曲線可以把應對實時時間和測量值的線性關系一一顯示和分析，或者單個測量值，例如蓄電池中每個電池的電壓，可以使用DATAHold功能保存，并以表格形式在PC上進行分析。METRAwin10/METRAHIT軟件選項如果需要，可以在PC上評估記錄到測量值存儲器模塊的測量數(shù)據，借助于作為標準設備提供的IR接口和轉換為RS232協(xié)議的雙向IR適配器（BD適配器）。建議使用METRAwin10/METRAHIT軟件，適用于顯示，分析和歸檔測試結果，適用于WindowsXP，VISTA或7操作系統(tǒng)，該軟件作為附件提供。為用戶考慮的套裝版。海南fluke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是一家一般經營項目是：儀器儀表、通訊器材、機械設備、五金工具的購銷、技術維護、信息咨詢；國內貿易；貨物與技術的進出口業(yè)務。（法律、行政法規(guī)、國**決定禁止的項目除外，限制的項目須取得許可后方可經營），許可經營項目是：儀器儀表、通訊器材、機械設備、五金工具的安裝、維修。的公司，致力于發(fā)展為創(chuàng)新務實、誠實可信的企業(yè)。茂迪深耕行業(yè)多年，始終以客戶的需求為向導，為客戶提供***的電能質量分析儀，功率分析儀，亮度計，色差儀。茂迪始終以本分踏實的精神和必勝的信念，影響并帶動團隊取得成功。茂迪創(chuàng)始人秦學明，始終關注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務。</p></p><br /><p>文章來源地址: 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