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id="i8pjzty" class="panel-bd"> <div id="i8pjzty" class="news-detail news-aggregate-detail"> <div id="i8pjzty" class="news-detail-title"> <h1>頻閃儀的常見使用誤區(qū)</h1> <p> <span>瀏覽量：712</span>  <span>發(fā)布時(shí)間：2020-11-24 10:39:46</span> </p> </div> <div id="i8pjzty" class="news-detail-view"> <p>　<strong>　</strong>頻閃儀主要適用于印刷行業(yè):印刷機(jī)、檢品機(jī)、分切機(jī)、復(fù)卷機(jī)及需要測速計(jì)數(shù)、測頻率的場合，也可以利用它進(jìn)行各類轉(zhuǎn)子、齒輪嚙合、機(jī)器振動(dòng)診斷、紡織制造等高速運(yùn)動(dòng)物體表面缺損及運(yùn)行軌跡的監(jiān)控。亦可以固定在機(jī)器上，采用外觸發(fā)自動(dòng)跟蹤方式。今天為大家?guī)淼氖穷l閃儀的常見使用誤區(qū)，希望對(duì)您有用。</p><p style="text-align: center;"><img src="/Public/Uploads/image/20201124/1606185584199777.png" title="1606185584199777.png" alt="頻閃儀的常見使用誤區(qū).png"/></p><p style="text-indent: 2em;"><strong>1、頻閃儀的閃爍頻率過低</strong></p><p>　　由于印刷圖案較大或印刷速度較低，圖案運(yùn)動(dòng)速度緩慢，此時(shí)使用頻閃儀就不合適。當(dāng)頻閃儀在500次/分以下的頻率頻閃，在觀察圖案時(shí)，眼睛會(huì)感覺很晃眼，好像無法看到相對(duì)靜止的印刷圖案。這種情況下，并不是頻閃儀本身出現(xiàn)了問題，而是人眼很難清楚分辨瞬間閃光反射到人眼的圖案。用于人眼直接觀察印刷圖案的場合，要求頻率在500次/分以上。</p><p>　<strong>　2、頻閃儀的閃爍頻率過高</strong></p><p>　　氙氣燈管都是有一定的壽命的，其壽命以閃光次數(shù)表示。過高的閃爍頻率使用時(shí)，頻閃儀燈管的使用時(shí)間會(huì)縮短。一般情況下，當(dāng)印刷圖案出現(xiàn)問題時(shí)，不會(huì)只出現(xiàn)單個(gè)圖案不好，而是會(huì)出現(xiàn)連續(xù)一批(多個(gè))圖案都存在問題。所以在檢驗(yàn)產(chǎn)品表面質(zhì)量時(shí)，并不需要對(duì)每個(gè)印刷圖案進(jìn)行逐個(gè)檢驗(yàn)，此時(shí)可以降低頻率使用，把頻率設(shè)在圖案運(yùn)動(dòng)頻率的1/n倍，都可以讓圖案相對(duì)靜止，建議頻率選擇在2000f/m-4000f/m左右，即保證了清楚觀測圖案的效果，同時(shí)延長了頻閃儀燈管的使用壽命。</p><p>　　<strong>3、頻閃儀的閃光亮度問題</strong></p><p>　　頻閃燈管的*大功率是固定的，其單次閃光亮度跟頻率是成反比的。在高頻閃光下，亮度肯定會(huì)比低頻的時(shí)候低。在實(shí)際使用過程中，并不是閃光亮度越高越好，對(duì)于反光較強(qiáng)的印刷材質(zhì)，則需要亮度較低且柔和的燈光，并且對(duì)于不同的使用者來說，燈光的亮度要求也不一致。</p><p><br/></p> </div> </div> </div> </div> </div> <div id="i8pjzty" class="news-aggregate-sd"> <div id="i8pjzty" 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