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href="/article.html">技術(shù)文章</a> > <span>如何才能選到適合自己的溶氧儀？</span></p> </div>   <div id="ljqcjq3" class="ly_NyNewsdetail"> <h1 class="NyNewsdetail_title">如何才能選到適合自己的溶氧儀？</h1> <div id="fn3ikht" class="NyNewsdetail_tips">更新時(shí)間：2022-08-25 點(diǎn)擊次數：1590</div> <div id="qebnu8r" class="NyNewsdetail_con"> <div>　　<strong>溶氧儀</strong>是根據電化學(xué)原理，在被測含氧的電解液中，兩個(gè)不同的金屬電極會(huì )發(fā)生氧化還原反應的原理，測量水中氧含量的儀器。與溶液中的氧濃度有一定的關(guān)系。那么如何才能選到適合自己的儀器呢？首先要了解以下幾個(gè)方面的內容。</div><div>　　<br /> </div><p style="text-align: center;"><img src="https://img61.chem17.com/9/20220825/637970349601750004633.png" alt="溶氧儀" width="459" height="339" align="middle" /><br /> </p><p> </p><div>　　溶氧儀按原理及其他分類(lèi)方法可分為以下幾類(lèi)：</div><div>　　</div><div>　　1、按原理可分為極譜法和熒光法</div><div>　　</div><div>　?。?）極譜溶解氧儀。目前市場(chǎng)上的溶解氧儀大多是極譜分析儀器。ppm級可廣泛用于化肥、環(huán)保、制藥、生化、食品和自來(lái)水溶液中溶解氧值的連續監測。Ppb級設計用于電廠(chǎng)、鍋爐給水和冷凝水。ppb級溶解氧測量設計，保證（超）低濃度的穩定性和準確性。目前的技術(shù)在測量性能和使用環(huán)境上都有了很大的提高。</div><div>　　</div><div>　?。?）熒光溶解氧儀。</div><div>　　</div><div>　?。?）創(chuàng )新熒光新技術(shù)，無(wú)膜和電解液，幾乎無(wú)需維護，使用方便。熒光溶氧儀是基于物理學(xué)中特定物質(zhì)對活性熒光的猝滅原理。</div><div>　　</div><div>　　2、其他分類(lèi)方法</div><div>　　</div><div>　　溶氧儀按便攜性分為臺式溶解氧分析儀、便攜式溶解氧分析儀和筆式溶解氧分析儀。筆式溶解氧分析儀，測量范圍小，是一種特殊而簡(jiǎn)單的儀器；臺式和便攜式溶解氧分析儀的測量范圍比較廣。不同的是，便攜式溶解氧分析儀采用直流電源，可以攜帶到現場(chǎng)，更方便。</div><div>　　</div><div>　　溶氧儀適用范圍：</div><div>　　</div><div>　　1、水產(chǎn)養殖。保證水生生物的呼吸需求，實(shí)時(shí)監測含氧量，自動(dòng)報警，自動(dòng)加氧等功能。</div><div>　　</div><div>　　2、天然水域水質(zhì)監測。檢測水域的污染程度和自?xún)裟芰?，防止富營(yíng)養化等生物污染。</div><div>　　</div><div>　　3、污水處理，控制指標。采用厭氧池、好氧池、曝氣池等指標來(lái)控制水處理效果。</div><div>　　</div><div>　　4、控制工業(yè)給水管道的金屬腐蝕。一般采用ppb（UG/L）范圍的傳感器來(lái)控制管道內部，實(shí)現零氧，防止生銹。它們通常用于發(fā)電廠(chǎng)和鍋爐設備。</div> </div> <div id="tcegnzg" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/Article-3124473.html">工欲善其事，必先安裝好溶氧儀的探頭</a></li> <li>下一篇：<a href="/Article-3108499.html">四種方法輕松清洗電磁流量計的電極污垢</a></li> </ul> </div> </div>   <div id="r8bq3xp" class="ly_foot"> <div id="p9k4ip9" class="ly_Ftmain"> <div id="hq3myfc" class="ly_FtLeft"> <div 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