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id="rfwne9i" class="clear"></div> </form> </div> <div id="sbc8kon" class="clear"></div> </div> </div>  <script src="http://www.chem17.com/mystat.aspx?u=sanbon"></script>  <div id="sk3f4hl" class="ly_crumb"> <img src="/skins/170979/images/crumb_icon.png" /><p>當前位置：<a href="/">首頁(yè)</a> > <a href="/article.html">技術(shù)文章</a> > <span>談?wù)勲妼屎碗妼蕛x的關(guān)系</span></p> </div>   <div id="3t7nhvz" class="ly_NyNewsdetail"> <h1 class="NyNewsdetail_title">談?wù)勲妼屎碗妼蕛x的關(guān)系</h1> <div id="9dr84xh" class="NyNewsdetail_tips">更新時(shí)間：2022-05-05 點(diǎn)擊次數：831</div> <div id="kikb48n" class="NyNewsdetail_con"> <div>　　和往常一樣我首先來(lái)介紹的是，關(guān)于什么是電導率，解答大家的一些疑問(wèn)。知己知彼百戰不殆嘛!<br /> </div><div>　　電導率是物體傳導電流的能力。<a href="http://www.tianhualian.com.cn/ParentList-432776.html" target="_blank">電導率儀</a>的測量原理是將兩塊平行的極板，放到被測溶液中，在極板的兩端加上一定的電勢，然后測量極板間流過(guò)的電流。根據歐姆定律，電導率--電阻的倒數，由導體本身決定的。電導率的基本單位是西門(mén)子，原來(lái)被稱(chēng)為歐姆。因為電導池的幾何形狀影響電導率值，標準的測量中用單位電導率來(lái)表示，以補償各種電極尺寸造成的差別。單位電導率簡(jiǎn)單的說(shuō)是所測電導率與電導池常數的乘積.這里的L為兩塊極板之間的液柱長(cháng)度，A為極板的面積。<br /> </div><div>　　水溶液的電導率直接和溶解固體量濃度成正比，而且固體量濃度越高，電導率越大。利用電導率儀或總固體溶解量計可以間接得到水的總硬度值。電導率是物質(zhì)傳送電流的能力，與電阻值相對。但是需要注意：以電導率間接測算水的硬度，其理論誤差約二十到三十溶液的電導率大小決定分子的運動(dòng)，溫度影響分子的運動(dòng)。<br /> </div><p align="center"><img src="https://img64.chem17.com/9/20220505/637873729105386001632.jpg" alt="電導率儀" width="500" height="491" align="middle" /></p><p> </p><div>　　一口氣介紹了那么多，大家可以慢慢的去看之后慢慢的體會(huì )它的意思，下面我來(lái)介紹的是在測試的時(shí)候一些電導率和哪些東西相關(guān)?首先水的電導率與其所含無(wú)機酸、堿、鹽的量有一定關(guān)系。<br /> </div><div>　　當它們的濃度較低時(shí)，電導率隨濃度的增大而增加，因此，該指標常用于推測水中離子的總濃度或含鹽量。<br /> </div><div>　　不同類(lèi)型的水有不同的電導率。新鮮蒸餾水的電導率為是很小的但放置一段時(shí)間后，因吸收了二氧化碳，增加;超純水的電導率小于平時(shí)。電極常數常選用已知電導率的標準氯化鉀溶液測定。<br /> </div><div>　　不同濃度氯化鉀溶液的電導。溶液的電導率與其溫度、電極上的極化現象、電極分布電容等因素有關(guān)，儀器上一般都采用了補償或消除措施。</div> </div> <div id="fshyfwy" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/Article-3004410.html">如何對電導率儀的傳感器進(jìn)行校準？</a></li> <li>下一篇：<a href="/Article-2995163.html">在選擇電導率儀電導率電極時(shí)需要注意什么？</a></li> </ul> </div> </div>   <div id="tx33jnp" class="ly_foot"> <div id="hzqhoah" class="ly_Ftmain"> <div id="sq3icjl" class="ly_FtLeft"> <div id="kyug8rt" class="Ft_nav"><a href="/">首頁(yè)</a><a href="/aboutus.html" target="_blank">關(guān)于我們</a><a href="/products.html" target="_blank">產(chǎn)品展示</a><a href="/news.html" target="_blank">新聞中心</a><a href="/article.html" target="_blank">技術(shù)文章</a><a href="/honor.html" target="_blank">榮譽(yù)資質(zhì)</a></div> <div id="ud373q4" class="Ft_contact"> <div id="cvx8o8o" class="Ftcont_tit">聯(lián)系方式<em></em></div> <p>郵箱：122092220@qq.com</p> <p>地址：上海市浦東新區周浦鎮建韻路38號3號樓202室</p> </div> </div> <div id="8byugnp" class="ly_FtCenter"> <p>咨詢(xún)熱線(xiàn)</p> <b>021-66566106</b> 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