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href="/article.html">技術(shù)文章</a> > 為什么氣體檢測(cè)儀需要定期標(biāo)定？</div> <div id="gbd9wdnsvu" class="about_con"> <h1 class="newstit">為什么氣體檢測(cè)儀需要定期標(biāo)定？</h1> <div id="gbd9wdnsvu" class="newstime"> <span id="gbd9wdnsvu" class="skim"><em>瀏覽次數(shù)：</em>2033</span><span id="gbd9wdnsvu" class="skimtim"><em>發(fā)布日期：</em>2018-05-20 </span> </div> <h2>為什么氣體檢測(cè)儀需要定期標(biāo)定？</h2><p>氣體檢測(cè)儀出廠前需要先用一個(gè)零點(diǎn)標(biāo)氣和幾個(gè)標(biāo)準(zhǔn)濃度的氣體對(duì)儀器進(jìn)行標(biāo)定，得到標(biāo)準(zhǔn)曲線儲(chǔ)存于儀器之中，測(cè)定時(shí)，儀器將待測(cè)氣體濃度產(chǎn)生的電信號(hào)同標(biāo)準(zhǔn)濃度的電信號(hào)進(jìn)行比較，計(jì)算得到準(zhǔn)確的氣體濃度值。因此，隨時(shí)對(duì)儀器進(jìn)行校零，經(jīng)常性對(duì)儀器進(jìn)行校準(zhǔn)都是保證儀器測(cè)量準(zhǔn)確的*的工作。</p><p>　　需要說(shuō)明的是：氣體檢測(cè)儀都是可以更換檢測(cè)傳感器的，但是，這并不意味著一個(gè)檢測(cè)儀可以隨時(shí)配用不同的傳感器。在更換探頭時(shí)除了需要一定的傳感器活化時(shí)間外，還必須對(duì)儀器進(jìn)行重新校準(zhǔn)。另外，建議在各類儀器在使用之前，對(duì)儀器用標(biāo)氣進(jìn)行響應(yīng)檢測(cè)，以保證儀器真正起到保護(hù)的作用。</p> <div class="gbd9wdnsvu" id="news_sx"><li id="gbd9wdnsvu" class="sx_left">上一篇：<a 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