廣東51毫歐表歡迎咨詢深圳市茂迪機(jī)電設(shè)備供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="毫歐表的調(diào)零方法：①機(jī)械調(diào)零當(dāng)兩表筆分開時baidu,即待測電阻為無窮大時,由歐姆zhi定律知此時電流強(qiáng)度為零。即當(dāng)兩表筆分開時dao，電表指針指示的狀態(tài)應(yīng)為零電流和無窮大歐姆。但是由于各種原因，當(dāng)兩表筆分開時電表的指針有時并沒有指在零電流"><meta name="keywords" content="廣東51毫歐表,毫歐表"><link rel="canonical" href="http://m.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://m.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub 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href="http://m.cdcfah.com/cp/third-dgyqybwr_dzclybxx/">電阻測量儀表</a>?廣東51毫歐表歡迎咨詢深圳市茂迪機(jī)電設(shè)備供應(yīng)</p><div id="g3qx87m" class="leftbox clearfix"><h1>廣東51毫歐表歡迎咨詢深圳市茂迪機(jī)電設(shè)備供應(yīng)</h1><div id="mfkbl8k" class="proBig"><div id="x8z8urt" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szmdjd/637358931012294922/9282352.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="pobdkwy" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szmdjd/637358931012294922/9282352.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ir88nkb" 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(guān)鍵詞：</span>廣東51毫歐表,毫歐表</p><p><span>***更新：</span>2020-11-30 01:15:09</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="kj7sjv2" 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(jī)電設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>黃富強(qiáng)</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(jī): </span>0755-83280136</p><p><span>地址: </span>深南大道6006號華豐大廈2803、2804</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="3nf27vm" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="wakgxzg" class="box"><p><p> 毫歐表的調(diào)零方法： </p> <p> <p> ①機(jī)械調(diào)零 </p> <p> 當(dāng)兩表筆分開時baidu,即待測電阻為無窮大時,由歐姆zhi定律知此時電流強(qiáng)度為零。即當(dāng)兩表筆分開時dao，電表指針指示的狀態(tài)應(yīng)為零電流和無窮大歐姆。但是由于各種原因，當(dāng)兩表筆分開時電表的指針有時并沒有指在零電流刻度上，這就需要進(jìn)行機(jī)械調(diào)零。用螺旋刀轉(zhuǎn)動機(jī)械調(diào)零螺絲帶動指針轉(zhuǎn)動，使指針指無窮大歐姆刻度處。 </p> <p> ②歐姆調(diào)零 </p> <p> 當(dāng)兩表筆短接時，由歐姆定律知，可以通過調(diào)節(jié)滑動變阻器使電流表滿偏，即令指針指電流表的滿偏電流刻度處，亦即零歐姆刻度處。即當(dāng)兩表筆短接時，廣東51毫歐表，廣東51毫歐表，廣東51毫歐表, </p> <p> 電表指針指示的狀態(tài)應(yīng)為滿偏電流和零歐姆阻值。否則，調(diào)節(jié)變阻器使電流表指針指滿偏電流刻度處，亦即零歐姆刻度處，即完成歐姆調(diào)零。 </p> <p> <br /> </p> 毫歐表在汽車工業(yè)、電動機(jī)械制造和航空技術(shù)方面均有廣泛應(yīng)用。廣東51毫歐表</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東51毫歐表,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637358931012294922/9282352.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(dǎo)電能力強(qiáng)，過電流大的特點(diǎn)。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(diǎn)，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(zhuǎn)化為電壓來測量或反饋?；蛘咴诰€路中需要做過流保護(hù)時，電路設(shè)計(jì)簡單，實(shí)際操作成本低，安全可靠。廣西便攜式數(shù)字毫歐表數(shù)字毫歐表的校對方法。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東51毫歐表,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637360195417324219/8573881.png"></div><p> 線圈不通電時，動觸點(diǎn)和其中一個靜觸點(diǎn)斷開和另一個閉合，線圈通電后，動觸點(diǎn)就移動。使原來斷開的成閉合，原來閉合的成斷開狀態(tài)，達(dá)到轉(zhuǎn)換的目的。這樣的觸點(diǎn)組稱為轉(zhuǎn)換觸點(diǎn)。用“轉(zhuǎn)”字的拼音字頭“z”表示。繼電器的選用1、先了解必要的條件a.控制電路的電源電壓，能提供的**大電流；b.被控制電路中的電壓和電流；c.被控電路需要幾組、什么形式的觸點(diǎn)。選用繼電器時，一般控制電路的電源電壓可作為選用的依據(jù)?？刂齐娐窇?yīng)能給繼電器提供足夠的工作電流，否則繼電器吸合是不穩(wěn)定的。2、查閱有關(guān)資料確定使用條件后，可查找相關(guān)資料，找出需要的繼電器的型號和規(guī)格號。若手頭已有繼電器，可依據(jù)資料核對是否可以利用。**后考慮尺寸是否合適。3、注意器具的容積。若是用于一般用電器，除考慮機(jī)箱容積外，小型繼電器主要考慮電路板安裝布局。對于小型電器，如玩具、遙控裝置則應(yīng)選用超小型繼電器產(chǎn)品。</p><p> 可表示為：Δd=A/D轉(zhuǎn)換器的積分非線性誤差I(lǐng)NL+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(jī)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(jī)誤差的主要因素是隨機(jī)接觸電阻、系統(tǒng)噪聲和外部干擾。3關(guān)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(zhǔn)的精密電壓參考源的性能優(yōu)于以能帶為基準(zhǔn)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(yùn)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(kuò)展電路如圖3所示，運(yùn)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(yùn)算放大器的偏置電流可以忽略不計(jì)，因此恒流源電流在NR上的壓降與VMOS場效應(yīng)管的源極電流在R上的壓降必定相等。當(dāng)選擇I1=1mA。數(shù)字電橋毫歐表哪里的性價比高？找深圳茂迪黃富強(qiáng)！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東51毫歐表,毫歐表" src="https://tyunfile.71360.com/UploadFile/szmdjd/637358930886699219/8398964.png"></div><p> 毫歐表/微歐表四線測量直流電阻測試儀參數(shù)毫歐表/微歐表四線測量直流電阻測試儀參數(shù) </p> <p> 產(chǎn)品別稱： </p> <p> 直流電阻速測儀、直流電阻測試儀、變壓器繞組直流電阻測試儀、變壓器直阻速測儀、變壓器直阻快速測試儀 </p> <p> 注意事項(xiàng)： </p> <p> 1.在測無載調(diào)壓變壓器倒分接前一定要復(fù)位，放電結(jié)束后，放電提示音結(jié)束，且提示信息消失后再切換分接開關(guān)。 </p> <p> 3.測試結(jié)束后，按"復(fù)位"鍵，一定要等放電指示燈熄滅，提示信息消失后再關(guān)掉電源，進(jìn)行拆線。 </p> <p> 4.測試過程中請少斷電或測試夾鉗脫落。 </p> <p> 5.接通電源前請先接好地線，測試結(jié)束后請zui后拆地線。 </p> <p> 產(chǎn)品別稱： </p> <p> 直流電阻速測儀、直流電阻測試儀、變壓器繞組直流電阻測試儀、變壓器直阻速測儀、變壓器直阻快速測試儀毫歐表是一種特殊的電橋，往往是四臂電橋，用來克服引線電阻造成的測量誤差。廣東鋰電毫歐表</p><p style="text-indent:25px">是一種緊湊型毫歐電阻表加萬用表和溫度計(jì)，用于測量飛機(jī)外殼上的低值接觸電阻（防雷，燈芯測試）。廣東51毫歐表</p><p> <p> 微電阻計(jì)bai，市場上通常稱為毫歐表或微歐du計(jì)。zhi其測試原理是通過電橋原理dao（國外也稱為開爾文原理）四線法測量的，即在電阻兩端施加1個恒流，再通過儀器檢測其兩端的電壓，然后通過儀器自動計(jì)算后得出電阻值。其優(yōu)點(diǎn)是測量的數(shù)據(jù)接近電阻在工作狀態(tài)下的真實(shí)阻值，且消除了測試線本身電阻的影響。 </p> <p> 而普通萬用表測量電阻一般采用比例法，被測電阻與標(biāo)準(zhǔn)電阻串聯(lián)，測量標(biāo)準(zhǔn)電阻和被測電阻的電壓，兩者電流相同，根據(jù)標(biāo)準(zhǔn)電阻的阻值換算出被測電阻的阻值。實(shí)際測量電路也有把標(biāo)準(zhǔn)電阻對應(yīng)電壓作為基準(zhǔn)電壓，這樣，直接測量被測電阻兩端的電壓即可。 </p> <p> 所以，在測量微電阻的時候，毫歐表或微歐計(jì)更加反應(yīng)真實(shí)電阻值。而萬用表的測試線電阻會影響其被測電阻的真實(shí)值。 </p> <p> 比如測量一個1歐姆的電阻，如果萬用表的測試線本身就有1歐姆，那么顯示的阻值就是2歐姆，你說這個阻值是真實(shí)的嗎？但毫歐表和微歐表則不存在這個困惑。 </p> <p> 另一個很重要的因素是測試電流，某些電阻在不同測試電流下的阻值是會變化的，萬用表達(dá)不到這樣的要求，而毫歐表和微歐計(jì)則可選擇相應(yīng)的恒定測試電流。 </p> <p> <br /> </p> 廣東51毫歐表</p><p style="text-indent:25px">深圳市茂迪機(jī)電設(shè)備有限公司是一家一般經(jīng)營項(xiàng)目是：儀器儀表、通訊器材、機(jī)械設(shè)備、五金工具的購銷、技術(shù)維護(hù)、信息咨詢；國內(nèi)貿(mào)易；貨物與技術(shù)的進(jìn)出口業(yè)務(wù)。（法律、行政法規(guī)、國**決定禁止的項(xiàng)目除外，限制的項(xiàng)目須取得許可后方可經(jīng)營），許可經(jīng)營項(xiàng)目是：儀器儀表、通訊器材、機(jī)械設(shè)備、五金工具的安裝、維修。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠實(shí)可信的企業(yè)。茂迪作為一般經(jīng)營項(xiàng)目是：儀器儀表、通訊器材、機(jī)械設(shè)備、五金工具的購銷、技術(shù)維護(hù)、信息咨詢；國內(nèi)貿(mào)易；貨物與技術(shù)的進(jìn)出口業(yè)務(wù)。（法律、行政法規(guī)、國**決定禁止的項(xiàng)目除外，限制的項(xiàng)目須取得許可后方可經(jīng)營），許可經(jīng)營項(xiàng)目是：儀器儀表、通訊器材、機(jī)械設(shè)備、五金工具的安裝、維修。的企業(yè)之一，為客戶提供良好的電能質(zhì)量分析儀，功率分析儀，亮度計(jì)，色差儀。茂迪致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗(yàn)。茂迪始終關(guān)注儀器儀表市場，以敏銳的市場洞察力，實(shí)現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2198003.html</p></div></div></div></div></div><div id="dczrtvx" class="page-right twoColRt"><div id="jyaxjwo" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div 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