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<script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.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 id="qgqbi"></sub><u id="qgqbi"></u><noframes id="qgqbi"></noframes><menu 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#f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>福建銷售電導率儀貨源充足,電導率儀</p><p><span>***更新：</span>2021-01-22 09:06:11</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="puvhjzl" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海博取環(huán)境技術有限公司</a></p><p><span>聯(lián)系人：</span>吳龐博</p><p><span>郵箱: </span>2355456207@qq.com</p><p><span>電話: </span>15900820461</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>021-20966896</p><p><span>地址: </span>南匯新城鎮(zhèn)海洋一路333號</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="u8xebse" class="page-proshow02"><p class="title">詳細說明</p><div id="3y2mypg" class="box"><p><p> 由二個電極組成的測量電極被稱為科爾勞施（Kohlrausch）電極。電導率的測量需兩個參數(shù)：一個是溶液的電導，另一個是溶液中L/A的幾何關系，電導可以通過電流、電壓的測量得到。電導率常數(shù)K=L/A其中：A-測量電極的有效極板，L-兩極板的距離。這一值則被稱為電極常數(shù)。在電極間存在均勻電場的情況下,電極常數(shù)可以通過幾何尺寸算出。當兩個面積為1cm2的方形極板，之間相隔1cm組成電極時，此電極的常數(shù)K=1cm-1，福建銷售電導率儀貨源充足。如果用此對電極測得電導值G=1000μS，則被測溶液的電導率K=1000μS/cm。一般情況下，電極常形成部分非均勻電場。此時，電極常數(shù)必須用標準溶液進行確定。標準溶液一般都使用KCl（氯化鉀）溶液，這是因為KCl的電導率的不同的溫度和濃度情況下非常穩(wěn)定，準確，福建銷售電導率儀貨源充足。mol/l的KCl溶液在25℃時電導率為。所謂不均勻電場（也稱作雜散場，福建銷售電導率儀貨源充足，漏泄場）沒有常數(shù)，而是與離子的種類和濃度有關。因此，一個純雜散場電極是復雜的電極，它通過一次校準，不能滿足寬的測量范圍的需要。（不均勻電場：是電場區(qū)域內(nèi)電場強度的大小和方向，隨空間坐標而變的電場。反之，電場強度的大小和方向與坐標無關的電場，被稱為均勻電場。福建銷售電導率儀貨源充足</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建銷售電導率儀貨源充足,電導率儀" src="http://tyunfile.71360.com/UploadFile/boqu123/637066592888837890/2673522.jpg"></div><p style="text-indent:25px">上海博取環(huán)境技術有限公司是國內(nèi)大型的水質(zhì)分析儀器、自動化儀器儀表專業(yè)的生產(chǎn)制造企業(yè)，具有**的產(chǎn)品研發(fā)中心，以及齊全的工藝設備和檢測設備，為制造出性能優(yōu)良、質(zhì)量可靠的產(chǎn)品奠定了堅實的基礎。上海博取環(huán)境技術有限公司經(jīng)過多年的經(jīng)營建立了完善的產(chǎn)品體系。通過傳統(tǒng)渠道和互聯(lián)網(wǎng)渠道相結(jié)合的方式，形成了完整的營銷脈絡，使貿(mào)易方式更加***豐富。上海博取儀器有限公司把質(zhì)量服務視為企業(yè)的生命，為使廣大用戶享受完整的配套服務, 完善的技術咨詢及完美的售后服務, 多年來產(chǎn)品服務不斷升級，得到廣大用戶的一致好評!!歡迎大家來我們公司實地考察!福建銷售電導率儀貨源充足</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建銷售電導率儀貨源充足,電導率儀" src="http://tyunfile.71360.com/UploadFile/boqu123/637064065225488282/6264812.png"></div><p> 電導測試儀原理 </p> <p> 經(jīng)過國際上大量的實驗數(shù)據(jù)表明，電導值與電池容量呈很好的線形關系。對于同一種電池，隨著使用后電池容量的下降，該電池的電導值也會下降，這樣的一個線形關系正是電導儀能夠正確判定電池健康情況的基礎。正因為如此，國際電氣和電子工程師協(xié)會（IEEE）正式把電導測試法作為檢測鉛酸蓄電池的檢測標準之一，在IEEE標準1118-1996的第15頁，明確指出：電池電導的測量是將已知頻率和振幅的交流電壓加到電池的兩端，然后測量所產(chǎn)生的電流。交流電導值就是與交流電壓同相的交流電流分量與交流電壓的比值。明顯的電導值的變化（下降大于20%）就意味著電池性能的變化。 </p><p style="text-indent:25px">水的硬度水的硬度是指水中鈣、鎂離子的濃度，硬度單位是ppm，1ppm**水中碳酸鈣含量1毫克/升(mg/L)。電導（G）是電阻（R）的倒數(shù)。因此當兩個電極（通常為鉑電極或鉑黑電極）插入溶液中，可以測出兩電極間的電阻R。根據(jù)歐姆定律，溫度一定時，這個電阻值與電極間距L（cm）正比，與電極的截面積A（cm2）反比，即R =ρ×（L/A）；其中ρ為電阻率,是長1cm，截面積為1cm2導體的電阻，其大小決定于物質(zhì)的本性。據(jù)上式，導體的電導（G）可表示成下式：G =1/R=（1/ρ）×（A/L）=K×（1/J）；其中，K=1/ρ稱為電導率，J =L/A稱為電極常數(shù)；電解質(zhì)溶液電導率指相距1cm的兩平行電極間充以1cm3溶液時所具有的電導。由上式可見，當已知電極常數(shù)（J），并測出溶液電阻（R）或電導（G）時，即可求出電導率 [1] </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建銷售電導率儀貨源充足,電導率儀" src="http://tyunfile.71360.com/UploadFile/boqu123/637064065225644532/1167102.png"></div><p> 電導率（conductivity），也稱為導電率：是用來描述物質(zhì)中電荷流動難、易程度的參數(shù)，水的導電性即水的電阻的倒數(shù)，通常用它來表示水的純凈度。電導率是物體傳導電流的能力。一、電導率儀的單位電導的基本單位是西門子（S），原來被稱為姆歐，取電阻單位歐姆倒數(shù)之意。因為電導池的幾何形狀影響電導率值，所以標準的測量中用單位S/cm來表示電導率，以補償各種電極尺寸造成的差別。單位電導率（C）簡單的說，是所測電導（G）與電導池常數(shù)(L/A)的乘積。這里的L為兩塊極板之間的液柱長度，A為極板的面積。=ρl=l/σ1、定義：電阻率的倒數(shù)為電導率。σ=1/ρ2、單位:在國際單位制中，電導率的單位是西門子/米，其它單位有：s/cm，us/cm。1S/m=；3、電導率的物理意義：是表示物質(zhì)導電的性能。電導率越大則導電性能越強，反之越小。二、電導率的測量原理將兩塊平行的極板，放到被測溶液中，在極板的兩端加上一定的電勢（通常為正弦波電壓），然后測量極板間流過的電流。根據(jù)歐姆定律，電導率(G)--電阻(R)的倒數(shù)，是由電壓和電流決定的。引起離子在被測溶液中運動的電場，是由與溶液直接接觸的二個電極產(chǎn)生的。此對測量電極必須由抗化學腐蝕的材料制成。實際中經(jīng)常用到的材料有鈦等。山東電導率儀哪家強</p><p style="text-indent:25px">福建銷售電導率儀貨源充足</p><p style="text-indent:25px">9月17日下午，亨通電力產(chǎn)業(yè)集團上海亨通海洋裝備有限公司吳總及其公司同事，一起前來參觀博取環(huán)境技術有限公司，在臨港科創(chuàng)中心張總的帶領下，本公司總經(jīng)理程總和技術總監(jiān)倪總一起接待，詳細的介紹了我們公司的產(chǎn)品及行業(yè) ，吳總對我們公司產(chǎn)品非常感興趣，進行了深入的了解和交流。后期可進行合作，接待工作也圓滿結(jié)束大家在我司環(huán)保產(chǎn)業(yè)方面的落地工作進行了很好的交流，也對特色小鎮(zhèn)的建設交換了心得，雙方溝通取得了非常好的效果。對我司的發(fā)展有很大的幫助！期待未來攜手并進！取得更好的成績！福建銷售電導率儀貨源充足</p><p style="text-indent:25px">　　上海博取環(huán)境技術有限公司是國內(nèi)大型的水質(zhì)分析儀器、自動化儀器儀表專業(yè)的生產(chǎn)制造企業(yè)，具有**的產(chǎn)品研發(fā)中心，以及齊全的工藝設備和檢測設備，為制造出性能優(yōu)良、質(zhì)量可靠的產(chǎn)品奠定了堅實的基礎。上海博取環(huán)境技術有限公司經(jīng)過多年的經(jīng)營建立了完善的產(chǎn)品體系。通過傳統(tǒng)渠道和互聯(lián)網(wǎng)渠道相結(jié)合的方式，形成了完整的營銷脈絡，使貿(mào)易方式更加***豐富。上海博取環(huán)境技術有限公司把質(zhì)量服務視為企業(yè)的生命，為使廣大用戶享受完整的配套服務, 完善的技術咨詢及完美的售后服務, 多年來產(chǎn)品服務不斷升級，得到廣大用戶的一致好評!!歡迎大家來我們公司實地考察!</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2960305.html</p></div></div></div></div></div><div id="ozgcjvr" class="page-right twoColRt"><div id="leqc87l" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jd8ic3z" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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