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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>廣西t477w毫歐表使用方法,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)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="yvnkmy4" 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="e2vr8y2" class="page-proshow02"><p class="title">詳細說明</p><div id="y3i2p3i" class="box"><p><p> 深圳市茂迪機電設備有限公司METRAHIT27I毫歐絕緣數(shù)字萬用表繼電器的特性和工作原理當輸入量(如電壓、電流、溫度等)達到規(guī)定值時，使被控制的輸出電路導通或斷開的電器?？煞譃殡姎饬?如電流、電壓、頻率、功率等)繼電器及非電量(如溫度、壓力、速度等)繼電器兩大類。具有動作快、工作穩(wěn)定、使用壽命長、體積小等優(yōu)點，廣西t477w毫歐表使用方法，廣西t477w毫歐表使用方法。普遍應用于電力保護、自動化、運動、遙控、測量和通信等裝置中。繼電器是一種電子控制器件，它具有控制系統(tǒng)（又稱輸入回路）和被控制系統(tǒng)（又稱輸出回路），通常應用于自動控制電路中，它實際上是用較小的電流去控制較大電流的一種“自動開關”。故在電路中起著自動調節(jié)、安全保護、轉換電路等作用。1、電磁繼電器的工作原理和特性電磁式繼電器一般由鐵芯、線圈、銜鐵、觸點簧片等組成的。只要在線圈兩端加上一定的電壓，線圈中就會流過一定的電流，從而產生電磁效應，銜鐵就會在電磁力吸引的作用下克服返回彈簧的拉力吸向鐵芯，廣西t477w毫歐表使用方法，從而帶動銜鐵的動觸點與靜觸點（常開觸點）吸合。當線圈斷電后，電磁的吸力也隨之消失，銜鐵就會在彈簧的反作用力返回原來的位置，使動觸點與原來的靜觸點（常閉觸點）吸合。這樣吸合、釋放。小電阻用四線法毫歐表可以測嗎？廣西t477w毫歐表使用方法</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西t477w毫歐表使用方法,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637358931012294922/9282352.png"></div><p> 一、毫歐電阻一般根據(jù)具體bai線路板的要求，分du為插件電阻、貼片電阻。毫歐zhi電阻，阻dao值低，精密度高，一般在阻值精密度在±1%以內，更高要求的用途時會采用0.01%精度的電阻。 </p> <p> 二、貼片電阻表面上用三位數(shù)字來表示阻值，其中***位、第二位為有效數(shù)，第三位數(shù)字表示后接零的數(shù)目。有小數(shù)點時用"R"來表示，并占一位有效位數(shù)。一般毫歐電阻用R表示歐姆級的小數(shù)點，M表示毫歐級的小數(shù)點，例如： </p> <p> R002-- 0.002Ω ； </p> <p> R010-- 0.010Ω ； </p> <p> 0M50 --0.00050Ω ； </p> <p> 0M75 --0.00075Ω ； </p> <p> 1M50-- 0.00150Ω。 </p> <p> <br /> 海南fluke數(shù)字毫歐表測量易爆環(huán)境低阻值接觸電阻的精密微歐表、萬用表Metrahit 27EX。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西t477w毫歐表使用方法,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637360195417324219/8573881.png"></div><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。</p><p> 下載中文說明PDF下載英文說明PDF產品視頻演示同類產品選型ResistanceMeasuringInstrumentRuggedDigitalMicrohmmeterforlowresistancemeasurement,withbuiltintemperaturecompensationCropicoDO7Plus可編程精密電阻測量儀/高精度微歐計/直流電阻測試儀產品型號：DO7Plus突出優(yōu)勢：堅固耐用的數(shù)字微歐表，具有***的功能，適用于各種低電阻測量，尤其適合變壓器熱線圈的測量，內置溫度補償。具有單向電流、正反向電流、平均值測量功能具有單觸發(fā)電流測量和連續(xù)測量模式具有手動量程和自動量程功能可選PT100溫度傳感器或普通溫度計對測量結果進行溫度自動補償高達5位數(shù)字顯示，**大顯示60000數(shù)字，**小電阻可測到**大測試電流達10A具有USB和RS232接口，可將測量數(shù)據(jù)傳輸至電腦進行分析、存儲、打印等獨有繪制冷卻曲線功能產品介紹：◆這款DO7Plus加強型是一款10A微歐表，適合應用于航天航空領域的精密電阻測量、公共事業(yè)、線纜或機械制造商以及需要繪制冷卻曲線coolingcurve及測量峰值電阻的場合?！魞x器封閉在一個IP67盒子中（當關閉時），或IP53，（蓋子打開時），它具有非常堅固的結構，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。用于4線毫歐測量的開爾文連接，補償由電纜和接觸電阻引起的影響，在測量非常小的電阻時必須消除這些影響。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西t477w毫歐表使用方法,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> 萬用表測毫歐級電阻的教學方法？海南fluke數(shù)字毫歐表</p><p style="text-indent:25px">毫歐表與微歐計的區(qū)別，是否有二合一的設備呢？廣西t477w毫歐表使用方法</p><p style="text-indent:25px">毫歐電阻分類編輯毫歐電阻主要有康銅電阻、錳銅電阻、低阻值貼片電阻?？点~電阻即康銅絲電阻，選用高精密合金絲并經過特殊工藝處理，其阻值低，精度高，溫度系數(shù)低，具有無電感，高過載能力。可***用于通訊系統(tǒng)，電子整機，自動化控制的電源等回路作限流，均流或取樣檢測電路連接等。錳銅電阻即錳銅絲電阻，選用精密合金絲經過特殊工藝處理,使其阻值低,精度高,溫度系數(shù)低,穩(wěn)定性好;具有無電感,高過載能力.可***用于通訊系統(tǒng),電子整機,自動化控制的電源等回路作限流,均流或取樣檢測。兩種電阻的性能用途無本質區(qū)別，但如果作為取樣電阻更趨向于錳銅絲電阻，它的穩(wěn)定性較好?？点~絲電阻阻值從0.1毫歐至100毫歐之間，功率從1瓦至30瓦，產品精度比較高可達0.5%。錳銅絲電阻阻值從1毫歐至1歐之間，功率從1瓦至30瓦可選，精度可以做到1%或5%。貼片電阻(SMD Resistor)即片式固定電阻器,是金屬玻璃鈾電阻器中的一種。是將金屬粉和玻璃鈾粉混合，采用絲網(wǎng)印刷法印在基板上制成的電阻器。耐潮濕，高溫，溫度系數(shù)小。貼片電阻阻值范圍較廣。廣西t477w毫歐表使用方法</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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