激光粒子计数器（尘埃粒子检测仪）与激光粉尘仪（pm2.5粉尘检测?-上?；灰搅破餍涤邢薰?/title> <link type="text/css" rel="stylesheet" href="/Skins/100386/css/style.css" /> <link rel="stylesheet" type="text/css" href="/Skins/100386/css/swiper.min.css"> <script src="/Skins/100386/js/jqueryNew.min.js"></script> <script src="/Skins/100386/js/swiper.min.js"></script>  <script language="javascript" type="text/javascript"> var nav= '5'; </script>  <link rel="shortcut icon" href="/Skins/100386/favicon.ico"> <script type="application/ld+json"> { "@context": "https://ziyuan.baidu.com/contexts/cambrian.jsonld", "@id": "http://www.cqxywcy.cn/Article-179472.html", "title": "激光粒子计数器（尘埃粒子检测仪）与激光粉尘仪（pm2.5粉尘检测?", "pubDate": "2022-07-06T08:41:04", "upDate": "2022-07-06T08:41:04" }</script> <script language="javaScript" src="/js/JSChat.js"></script><script language="javaScript">function ChatBoxClickGXH() { DoChatBoxClickGXH('http://chat.zyzhan.com',106978) }</script><script>!window.jQuery && document.write('<script 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class="NyNewDetail_Name">激光粒子计数器（尘埃粒子检测仪）与激光粉尘仪（pm2.5粉尘检测?</h1> <div id="xfcqosq" class="NyNewDetail_Tips"> <span><img src="/Skins/100386/images/ico04.png" />更新时间：2022-07-06</span><span><img src="/Skins/100386/images/ico05.png" />点击次数：2203</span> </div> <div id="xfcqosq" class="NyNewDetail_Content"> <p style="text-align:center"><a target="_blank"><strong><span style="font-family: 宋体;font-size: 20px"><span style="font-family:宋体">激光粒子计数器（尘埃粒子检测仪）与激光粉尘仪（</span><span style="font-family:Calibri">pm2.5</span><span style="font-family:宋体">粉尘检测</span></span></strong></a><strong></strong></p><p style="text-align:center"><strong><span style="font-family: 宋体;font-size: 20px"> </span></strong></p><p style="text-indent:28px"><span style=";font-family:宋体;font-size:14px"><span style="font-family:宋体">尘埃粒子计数器（激光粒子计数器）和（激光粉尘仪）</span><span style="font-family:Calibri">PM2.5</span><span style="font-family:宋体">粉尘检测仪都是通过激光散射法原理进行颗粒物检测的仪器，但是两者的应用领域是不同的。尘埃粒子计数器是用于无尘车间、洁净室里检测洁净度等级的。如医药、电子、精密机械、彩管制造、微生物、研究所、计量院等行业中，实现对各种洁净等级的工作台、净化室、净化车间的净化效果、洁净级别进行监控，以确保产品的质量。而粉尘仪主要是用来测大气环境，适用于各种环境研究机构、气象、公共卫生、劳动卫生、大气污染研究等领域，使用环境应用于中心、矿山、冶金、电厂、化工制造、卫生监督、环境?；?、环境在线监测等等。为什么会这样呢？我们可以通过两种仪器光散射的原理来判断。 尘埃粒子计数器</span></span></p><p><span style=";font-family:宋体;font-size:14px"> </span></p><p><span style=";font-family:宋体;font-size:14px"> </span></p><p><span style=";font-family:宋体;font-size:14px"> </span></p><p><span style=";font-family:宋体;font-size:14px"><span style="font-family:宋体">我们首先介绍一个名词</span><span style="font-family:宋体">——气溶胶。气溶胶就是液态或固态微粒在空气中的悬浮体系。雾、烟、霾、轻雾</span><span style="font-family:Calibri">(</span><span style="font-family:宋体">霭</span><span style="font-family:Calibri">)</span><span style="font-family:宋体">、微尘和烟雾等</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">都是天然的或人为的原因造成的大气气溶胶。它们能作为水滴和冰晶的凝结核、太阳辐射的吸收体和散射体</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">并参与各种化学循环</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">是大气的重要组成部分。由此可知，我们日常所说的</span><span style="font-family:Calibri">PM2.5</span><span style="font-family:宋体">、</span><span style="font-family:Calibri">PM10</span><span style="font-family:宋体">就是大气气溶胶中的固态颗粒物。因此粉尘检测仪也叫气溶胶检测仪。它是通过采气泵将待测气溶胶吸入检测舱，将待测气溶胶在分支处分流成为两部分，一部分经过一个高效过滤器后被过滤为干净的空气，作为保护鞘气来?；ご衅魇业脑骷皇艽馄逦廴?。另外一部分气溶胶，作为待测样品直接进入传感器室内。传感器室内，主要元器件为激光二极管、透镜组和光电检测器。检测时，首先由激光二极管发出的激光，通过透镜组组成一个薄层面光源。薄层光照射在流经传感器室的待测气溶胶时，会产生散射，通过光电探测器来检测光的散射光强。光电探测器受光照之后产生电信号，正比于气溶胶的质量浓度。然后乘以电压校准系数，这个系数通过测定特定浓度的气溶胶来得到。 粉尘检测仪</span></span></p><p><span style=";font-family:宋体;font-size:14px"> </span></p><p><span style=";font-family:宋体;font-size:14px"> </span></p><p><span style=";font-family:宋体;font-size:14px"> </span></p><p><span style=";font-family:宋体;font-size:14px"><span style="font-family:宋体">激光粒子计数器的原理：粒子计数器通过采样泵抽取采样气体。在激光室中，通过激光照射采样气体，颗粒反射出来的闪光的频率，代表颗粒的数量，反射的光强，代表颗粒的粒径大小。由于激光室中的元器件没有鞘气?；ぃ虼思す饬Ｗ蛹剖饔Ω迷诮嗑换肪诚率褂?，以防止对激光传感器的损伤。当测的地方有松散颗粒的材质，灰尘源，喷雾处时，须最少保持距进口管至少十二英寸远，以免以上的颗粒及液体污染传感器及管路。</span></span></p><p><span style=";font-family:宋体;font-size:14px"> </span></p><p><span style=";font-family:宋体;font-size:14px"><span style="font-family:宋体">可以看出，激光粉尘仪（</span><span style="font-family:Calibri">PM2.5</span><span style="font-family:宋体">粉尘检测仪）不但采用了清洁气路的鞘气?；すδ?，而且内部的检测传感器结构更为复杂，有效的?；ち嗽骷皇芪廴疚锏乃鹕耍虼四芄辉诮衔丛雍臀廴狙现氐幕肪诚鲁て谑褂?。而尘埃粒子计数器（激光粒子计数器）因为气路设计中没有加入鞘气，加之检测传感器结构相对简单，只能按有数的几个粒径分类，换算为粉尘浓度时误差巨大（估算</span><span style="font-family:Calibri">8</span><span style="font-family:宋体">通道的分级，计算误差大于</span><span style="font-family:Calibri">30%</span><span style="font-family:宋体">；</span><span style="font-family:Calibri">2</span><span style="font-family:宋体">通道的分级，计算误差大于</span><span style="font-family:Calibri">50%</span><span style="font-family:宋体">），所以只能在较为洁净的空间进行粒子计数测量，如作为粉尘浓度测量仪器使用则误差大。</span></span></p><p><span style=";font-family:宋体;font-size:14px"> </span></p><p><span style=";font-family:宋体;font-size:14px"><span style="font-family:宋体">总结：客户需要根据自己的使用环境来选择正确的仪器，比如，是无尘车间，无尘环境，需检测洁净度等级的，就用激光粒子计数器（尘埃粒子计数器）来检测。如是普通环境、大气环境，想检测</span><span style="font-family:Calibri">PM2.5</span><span style="font-family:宋体">或</span><span style="font-family:Calibri">PM10</span><span style="font-family:宋体">的浓度的，就用粉尘检测仪来检测。</span></span></p><p><br/></p> </div> </div> </div>  </div> <div id="xfcqosq" class="NyPrevNext"> <ul> <li><i>上一条</i><a href="/Article-179797.html">使用尘埃粒子计数器应注意哪些事项</a></li> <li><i>下一条</i><a href="/Article-179177.html">国内器械车间净化工程注意的问题?</a></li> </ul> </div> </div>  <footer> <div id="xfcqosq" class="w1400"> <div id="xfcqosq" class="footup"> <ul> <li> <p>产品导航</p> <a href="/ParentList-471532.html">霉菌培养箱</a> <a href="/ParentList-471531.html">光照培养箱</a> <a href="/ParentList-471530.html">多功能全自动生化培养箱</a> <a 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