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負(fù)離子檢測(cè)儀五種測(cè)量模式</div> <div id="5jzvvz3" class="about_con"> <div id="dhjfv1j" class="newstit">負(fù)離子檢測(cè)儀五種測(cè)量模式</div> <div id="5b1pb3p" class="newstime"> <span id="lzt5xl5" class="skim"><em>瀏覽次數(shù)：</em>1070</span><span id="prhlbbr" class="skimtim"><em>發(fā)布日期：</em>2022-08-11 </span> </div> 　　負(fù)離子檢測(cè)儀是比較常見(jiàn)的測(cè)量負(fù)離子含量的儀器，我們?cè)谠S多行業(yè)中都可以看到它的身影，主要的作用是測(cè)量空氣中的負(fù)離子濃度。<div>　　負(fù)離子檢測(cè)儀的工作原理主要是采用“電容式吸入法”原理對(duì)負(fù)離子進(jìn)行檢測(cè)，可以準(zhǔn)確測(cè)量出空氣中的負(fù)離子濃度值。通過(guò)離子傳感器（或稱(chēng)采集桶，采集筒）上的極化板（或稱(chēng)偏壓板）加載定量的極化電壓，此時(shí)被測(cè)的空氣會(huì)按設(shè)定的速度勻速通過(guò)傳感器。存在于空氣中特定的小粒徑負(fù)離子會(huì)在電場(chǎng)的作用下發(fā)生偏轉(zhuǎn)，儀器中的采集板捕獲。被儀器所采集的含有負(fù)電荷的離子經(jīng)過(guò)采集器處理后，即可準(zhǔn)確計(jì)算出負(fù)離子的電荷濃度值。</div><div>　　負(fù)離子檢測(cè)儀五種測(cè)量模式：</div><div>　　1、標(biāo)準(zhǔn)測(cè)試模式（一般情況下采用）：測(cè)量20秒的平均值。</div><div>　　2、快速測(cè)試模式（要快速得知結(jié)果時(shí)使用）：測(cè)量10秒的平均值。</div><div>　　3、自動(dòng)測(cè)試模式（需要盡可能安定之測(cè)試數(shù)值時(shí)使用）：在20秒內(nèi)自動(dòng)測(cè)試8次，顯示大值、小值與平均值。</div><div>　　4、移動(dòng)平均測(cè)試模式（僅需要約略安定之?dāng)?shù)值時(shí)使用）：計(jì)算20秒的平均值并每隔1秒計(jì)算1次，共計(jì)16次的移動(dòng)平均值。</div><div>　　5、探查模式（僅判斷負(fù)離子信號(hào)強(qiáng)弱時(shí)使用）：簡(jiǎn)易探測(cè)負(fù)離子的有無(wú)。</div><div>負(fù)離子檢測(cè)儀的使用和注意事項(xiàng)：</div><div>　　1、測(cè)量時(shí)，要保持空氣的相對(duì)靜止，不流動(dòng)，同時(shí)測(cè)量人員應(yīng)遠(yuǎn)離一個(gè)手臂左右；</div><div>　　2、不要聯(lián)續(xù)開(kāi)機(jī)測(cè)定；</div><div>　　3、讀數(shù)要取出現(xiàn)的數(shù)值范圍的中間讀數(shù)</div><div>　負(fù)離子檢測(cè)儀使用操作說(shuō)明：</div><div>　　1、連接儀器的接地線(xiàn)；</div><div>　　2、選擇確定POLARITY在+或-,確定測(cè)定正、負(fù)離子；</div><div>　　3、直立儀器，旋鈕在OFF，按紐的開(kāi)關(guān)放在STANDBY，然后然后旋鈕至19.99×10n;</div><div>　　4、熱機(jī)1分鐘，當(dāng)數(shù)字不變化時(shí)(基本在一個(gè)中心變化)，按下按鈕到RE-ZERO，并且保持3-5秒;</div><div>　　5、當(dāng)顯示的數(shù)字在-0.02-0.02時(shí)，就已經(jīng)穩(wěn)定;如果不穩(wěn)定，需要重新調(diào)零;</div><div>　　6、測(cè)量時(shí)，按紐的開(kāi)關(guān)放在MEASURE就開(kāi)始測(cè)量;</div><div>　　7、根據(jù)顯示的數(shù)值的大小，旋鈕可以跟蹤旋至不同的量程范圍上;如果在測(cè)量過(guò)程顯示數(shù)字1，則應(yīng)調(diào)節(jié)到大一量程范圍檔位。</div> 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