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class="searchbox"><div id="mvcedj8" class="searchLt"><div id="8tqxwx9" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會</a></div><div id="knpr98j" class="clearfix searchWrap"><div id="tsum4hy" class="searchInput"><input type="text" name="keywords" placeholder="請輸入搜索關鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="uyacwxr" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="mbyauvp" class="twoCol"><div id="enf3od3" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應</a>?<a 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>?汕頭手持毫歐表 **** 深圳市茂迪機電設備供應</p><div id="a7u7gx9" class="leftbox clearfix"><h1>汕頭手持毫歐表 **** 深圳市茂迪機電設備供應</h1><div id="folfj3k" class="proBig"><div id="fyf77fh" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szmdjd/637358931083671875/8410952.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="uda4rid" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szmdjd/637358931083671875/8410952.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hl7axuy" 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>汕頭手持毫歐表,毫歐表</p><p><span>***更新：</span>2020-09-23 15:25:27</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="qpzdkwi" 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="h3hj888" class="page-proshow02"><p class="title">詳細說明</p><div id="ham42fh" class="box"><p><p> 毫歐表的單位換算 </p> <p> 1歐姆=1000毫歐bai。 </p> <p> 電阻的du單位有毫歐(m ohm)、歐(ohm)、千歐(K ohm)、兆歐(M ohm)等。zhi </p> <p> 1ohm=10^3毫歐=10^（-3）千歐=10^（-6）兆歐。 </p> <p> 擴展資料dao： </p> <p> 電阻單位有GΩ(G歐)，汕頭手持毫歐表，MΩ(兆歐)，KΩ(千歐)，Ω(歐姆)，它們之間的換算關系如下：1GΩ=1000MΩ=10000*0KΩ=10000*0000Ω(歐姆)。 </p> <p> 電阻計算公式 </p> <p> 定義式：R=U/I </p> <p> 定義公式：R=ρL/S </p> <p> 歐姆定律變形式：R=U/I </p> <p> 電阻串聯(lián)：R=R1+R2+R3+.。，汕頭手持毫歐表，汕頭手持毫歐表.+Rn </p> <p> 電阻并聯(lián)：1/R=1/R1+1/R2+1/R3+..+1/Rn </p> <p> 與電功率相關公式：R=U2/P；R=P/I2 </p> <p> 與電能（電熱）相關公式：R=U2t/W；R=W/I2t（電熱時，W換成Q） </p> <p> 決定式：R=ρL/S（ρ表示電阻的電阻率，是由其本身性質(zhì)決定，L表示電阻的長度，S表示電阻的橫截面積） </p> <p> <br /> 航空領域**的毫歐表METRAHIT 27I。汕頭手持毫歐表</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="汕頭手持毫歐表,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637358931083671875/8410952.png"></div><p> 可表示為：Δd=A/D轉(zhuǎn)換器的積分非線性誤差INL+A/D轉(zhuǎn)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。汕頭手持毫歐表數(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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="汕頭手持毫歐表,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637358930984863281/7908581.png"></div><p> 毫歐表使用注意事項： </p> <p> （1）用歐姆表測電阻，每次換擋后和測量前都要重新調(diào)零． </p> <p> （2）測電阻時待測電阻不僅要和電源斷開，而且要和別的元件斷開． </p> <p> （3）測量時注意手不要碰表筆的金屬部分，否則將人體的電阻并聯(lián)進去，影響測量結果． </p> <p> （4）合理選擇量程，使指針盡可能在中間刻度附近，參考指針偏轉(zhuǎn)在R中/5→5R中的范圍（或電流表指針偏轉(zhuǎn)滿度電流的1/3～2/3）．若指針偏角太大，應改接低擋位，反之就改換高擋位．讀數(shù)時應將指針示數(shù)乘以擋位倍數(shù)． </p> <p> （5）實際應用中要防止超量程，不得測額定電流極小的電器的電阻（如靈敏電流表的內(nèi)阻）． </p> <p> （6）測量完畢后，應拔出表筆，選擇開關置于 </p> <p> OFF擋位置，或交流電壓比較高擋；長期不用時，應取出電池，以防電池漏電． </p> <p> （7）歐姆表功能:測量電阻、測二極管正負極。 </p> <p> （8）用法:比較好指針打到中間將誤差減小。 </p> <p> <br /> </p> <p> 9）歐姆表的選擋： </p> <p> 從理論上講，歐姆表可直接測量從零至無限大之間任何阻值的電阻，但由于面板刻度的不均勻(即I與Rx的非線性關系)，使得在零值附近和無限大值附近很難比較準確地讀出被測電阻的數(shù)值(測量誤差很大)。當Rx=R內(nèi)時，即在中值附近時，指針偏角與Rx的關系比較接近線性，刻度較均勻，因此具體測量時，比較好使指針位于**附近， </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p><p> <strong><span style="font-size:14px;">深圳市茂迪機電設備有限公司</span></strong>測量易爆環(huán)境低阻值接觸電阻的精密微歐表、萬用表Metrahit27EXMETRAHIT27EX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。德國GMC易爆環(huán)境**用數(shù)字多用表、毫歐表Metrahit27EX滿足的法規(guī)和標準IEC/EN61010-1:2010VDE0411-1:2011Safetyrequirementsforelectricalequipmentformeasurement,controlandlaboratoryuseEN60529VDE0470,part1TestinstrumentsandtestproceduresDegreesofprotectionprovidedbyenclosures(IPcode)DINEN61326-1VDE0843-20-1Electricalequipmentformeasurement,controlandlaboratoryuse–EMCrequirements–Part1:GeneralrequirementsDINEN60079-0:2013VDE170-01Electricalapparatusforexplosivegasatmosphere,generalrequirementsDINEN60079-11:2012VDE170-7Explosiveatmosphere測量易爆環(huán)境低阻值接觸電阻的精密微歐表、萬用表Metrahit27EX配件清單1METRAHIT27EX1個GH18橡膠減震套（藍色），包括背帶8個可充電NiMH電池。具有4線法測量技術的毫歐表和線圈短路測試儀。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="汕頭手持毫歐表,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637360195287656250/3040605.png"></div><p> METRAHIT 27I毫歐表應用領域 </p> <p> <p> 應用領域: </p> <p> .線纜生產(chǎn)廠家 (測試一米電纜) </p> <p> .電子馬達，發(fā)動機 (測試繞組的阻值) </p> <p> .電阻，保險絲，變壓器繞組，變頻器，線圈，印制電路板 </p> <p> .汽車零件生產(chǎn)商 (測試安全氣囊和安全帶阻值，ABS剎車系統(tǒng)線圈) – METRAHIT 27I </p> <p> .靜電／電子器件生產(chǎn)廠，繼電器，連接器（測試開關接觸阻抗，繼電器接觸阻抗）- METRAHIT 27I </p> <p> 深圳市茂迪機電設備有限公司 </p> <p> <p> 功能特性： </p> <p> ? 絕緣電阻測量量程從30.00 M? 至3.000 G?，可選50,100, 250或500 V等多種電壓測試等級 </p> <p> ? 毫歐表(開爾文四線制測試連接) 支持的量程包括: 3.000 / 30.000 / 300.00 m?@ 1 A (脈沖測試電流), 30.00 / 300.00 m? @ 200 mA,3.0000 / 30.000 ? @ 20 mA </p> <p> ? 電壓測量量程從3 至600 V DC 或3 t到600 V AC，支持30,000 位 </p> <p> ? 通斷性及二極管測量 </p> <p> ? 過載保護功能 </p> <p> ? LCD 液晶顯示并支持背光 </p> <p> ? 紅外接口 </p> <p> ? 測量等級: 600 V CAT II, IP 54 防護 </p> </p> 國產(chǎn)毫歐表好還是進口的毫歐表好。汕頭手持毫歐表</p><p style="text-indent:25px">毫歐表在汽車工業(yè)、電動機械制造和航空技術方面均有廣泛應用。汕頭手持毫歐表</p><p> Metrahit 27EX精密毫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）。 </p> <p> 深圳市茂迪機電設備有限公司 </p> <p> ■ 量程：30mΩ,300mΩ,3Ω,30Ω </p> <p> ■ 分辨率：10Ω </p> <p> ■ 測試方法：開爾文四線法 </p> <p> ■ 數(shù)據(jù)保持存儲：1200 組 </p> <p> ■ EX 等級：Ex II 2 G Ex ia IIA T4 Gb </p> <p> ■ 原型試驗證書編號：INERI05ATEX0040 </p> <p> ■ DAkkS 認證報告 </p> <p> ■ 標配附件：卡爾文探針, 開爾文夾, **電池,保護套, 便攜箱 </p> <p> ■ 質(zhì)保：3 年內(nèi)（非人為原因）汕頭手持毫歐表</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。深圳茂迪致力于為客戶提供良好的電能質(zhì)量分析儀，功率分析儀，亮度計，色差儀，一切以用戶需求為中心，深受廣大客戶的歡迎。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。深圳茂迪憑借創(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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