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class="panel-bd"> <div id="i8pjzty" class="news-detail news-aggregate-detail"> <div id="i8pjzty" class="news-detail-title"> <h1>激光測(cè)厚儀如何選型？</h1> <p> <span>瀏覽量：895</span>  <span>發(fā)布時(shí)間：2021-09-09 16:59:14</span> </p> </div> <div id="i8pjzty" class="news-detail-view"> <p>　　厚度是板材類產(chǎn)品是否合格的重要指標(biāo)，對(duì)厚度的檢測(cè)方法選型尤其關(guān)鍵。測(cè)量板材整體厚度一般采用激光測(cè)厚儀，測(cè)量涂鍍層厚度一般采用超聲波測(cè)厚儀，測(cè)量薄板的厚度采用射線測(cè)厚儀。下面介紹一下激光測(cè)厚儀的選型方法。</p><p style="text-align: center;"><img src="/Public/Uploads/image/20210909/1631177939539287.jpg" title="1631177939539287.jpg" alt="激光測(cè)厚儀如何選型.jpg"/></p><p><strong>　　激光測(cè)厚儀檢測(cè)原理：</strong></p><p>　　激光測(cè)頭1和激光測(cè)頭2以固定間距相對(duì)布置，工作時(shí)激光測(cè)頭1發(fā)射一束激光照射被測(cè)物的下表面，下表面光斑的漫反射光再返回到激光測(cè)頭1內(nèi)的CCD芯片上，通過對(duì)CCD芯片上光斑的位置分析和計(jì)算，可以得到激光測(cè)頭1到被測(cè)物下表面的實(shí)際距離;同理可以得到激光測(cè)頭2到被測(cè)物上表面的距離。用兩個(gè)測(cè)頭之間的間距減去兩個(gè)測(cè)頭到被測(cè)物上下表面的距離即可得到被測(cè)物的厚度。</p><p>　<strong>　激光測(cè)厚儀選型注意事項(xiàng)：</strong></p><p>　　1、測(cè)量范圍</p><p>　　要明確生產(chǎn)的各板材厚度是多少，將各生產(chǎn)板材厚度匯總，得到板材范圍，測(cè)厚儀的檢測(cè)范圍要滿足生產(chǎn)中的所有板材厚度，避免重復(fù)購(gòu)買多臺(tái)測(cè)厚儀。</p><p>　　2、測(cè)量精度</p><p>　　不同類型的板材要求精度不同，精度要求越高，需要選擇高精度的測(cè)頭，價(jià)格也就相對(duì)較高。因此要明確自己所需檢測(cè)精度，以便選擇合適的測(cè)頭。</p><p>　　3、應(yīng)用場(chǎng)合</p><p>　　測(cè)厚儀是應(yīng)用于什么板材檢測(cè)，現(xiàn)場(chǎng)環(huán)境如何，板材是否反光，是否在線檢測(cè)，被測(cè)軋材是否自發(fā)光，冷軋還是熱軋等等。</p><p>　　4、檢測(cè)點(diǎn)數(shù)</p><p>　　板材寬度不同，對(duì)檢測(cè)的點(diǎn)數(shù)要求不同，因此要明確檢測(cè)點(diǎn)數(shù)，在制造測(cè)厚儀時(shí)，安裝合適的測(cè)頭組數(shù)。另外除了多點(diǎn)檢測(cè)，對(duì)寬板材檢測(cè)的方法還有掃描式測(cè)厚儀，即C型架帶動(dòng)測(cè)頭進(jìn)行往返運(yùn)動(dòng)，其檢測(cè)路線為“Z”字形。在選擇前，需明確自己的檢測(cè)方式。</p><p>　　5、接觸與否</p><p>　　激光測(cè)厚儀分為接觸式檢測(cè)與非接觸式檢測(cè)，看檢測(cè)需求選擇檢測(cè)方式，非接觸式檢測(cè)在不損傷軋材的情況下進(jìn)行檢測(cè)，對(duì)高溫、易形變的軋材也可檢測(cè)，接觸式測(cè)量?jī)H能對(duì)一些硬質(zhì)板材進(jìn)行檢測(cè)。</p><p>　　激光測(cè)厚儀主要從以上五點(diǎn)看如何選型，在了解自己的檢測(cè)需求后，選擇合適的厚度檢測(cè)裝置是非常有必要的。</p><p><br/></p> 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