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href="/article.html">技術(shù)文章</a> > <span>介紹X射線鍍層測厚儀的工作原理</span></p> </div>   <div id="2oaz3bi3vxd" class="ly_NyNewsdetail"> <h1 class="NyNewsdetail_title">介紹X射線鍍層測厚儀的工作原理</h1> <div id="2oaz3bi3vxd" class="NyNewsdetail_tips">更新時間：2022-09-14 點擊次數(shù)：1096</div> <div id="2oaz3bi3vxd" class="NyNewsdetail_con"> <div>　　XRF指X射線熒光，是一種識別樣品中元素類型和數(shù)量的技術(shù)。用于在整個電鍍行業(yè)范圍內(nèi)驗證鍍層的厚度和成分。其基本的無損性質(zhì)，加上快速測量和結(jié)構(gòu)緊湊的臺式儀器等優(yōu)點，能實現(xiàn)現(xiàn)場分析并立即得到結(jié)果。</div><div>　　對于鍍層分析，XRF鍍層測厚儀將此信息轉(zhuǎn)換為厚度測量值。在進行測量時，X射線管產(chǎn)生的高能量x射線通過光圈聚集，并照射在樣品非常小的區(qū)域（該區(qū)域的大小為光斑尺寸）。這些X射線與光斑內(nèi)元素的原子相互作用。</div><div>　 X射線鍍層測厚儀對焦系統(tǒng)確保每次測量中X射線管、零部件和探測器間的X射線可測量且?guī)缀喂饴愤B續(xù)一致；否則會導致結(jié)果不準確。XRF鍍層測厚儀相機幫助用戶精確定位測量區(qū)域。某些情形下相機用于向自動操作模塊提供圖像信息，或包括放大圖像以精確定位需要測量的區(qū)域。樣品可放置于固定或可移動的XRF鍍層測厚儀樣品臺上。快速或慢速移動對于找到測試位置至關(guān)重要，隨后聚焦于準確的區(qū)域進行測量。工作臺移動的精準度是帶來測試定位準確的一個因素，并進而貢獻于儀器的整體準確度。</div><div>　　XRF技術(shù)的最小檢測厚度為大約1nm。如果低于這個水平，則相應(yīng)的特征X射線會淹沒于噪聲信號中，無法對其進行識別。最大范圍約為50μm左右。如果在該水平之上，則鍍層厚度將導致內(nèi)層發(fā)射的X射線無法穿透鍍層而到達探測器。即厚度的任何進一步增加都不會導致更多的X射線到達探測器，因此厚度達到飽和無法測出變化。</div> </div> <div id="2oaz3bi3vxd" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/Article-3132917.html">在線PH控制器有哪幾種使用方法</a></li> <li>下一篇：<a href="/Article-3108847.html">學習更多關(guān)于在線自動測厚機的知識</a></li> </ul> </div> </div>   <div id="2oaz3bi3vxd" class="ly_foot"> <div id="2oaz3bi3vxd" class="ly_Ftmain"> <div id="2oaz3bi3vxd" class="ly_Ftcon"> <div id="2oaz3bi3vxd" class="ly_FtLeft"> <div id="2oaz3bi3vxd" class="Ft_tit">江蘇海東環(huán)?？萍加邢薰?/div> <ul> <li><img src="/skins/298891/images/Ftleft_icon1.jpg" />聯(lián)系人：吳生</li> <li><img 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