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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">『每日一普』红外热像仪介绍 </h1> <p class="xg1"> 时间：2016-2-25 10:57<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1925)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=4077&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>利用光电转换技术的夜视仪器，它分为主动式和被动式两种：前者用红外探照灯照射目标，接收反射的红外辐射形成图像；后者不发射红外线，依靠目标自身的红外辐射形成 “热图像”，故又称为”热像仪”。本文重点介绍红 ...</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content">利用光电转换技术的夜视仪器，它分为主动式和被动式两种：前者用红外探照灯照射目标，接收反射的红外辐射形成图像；后者不发射红外线，依靠目标自身的红外辐射形成 “热图像”，故又称为”热像仪”。本文重点介绍红外热像仪的相关内容。<div><br></div><div><b>红外热像仪的原理</b></div><div><b><br></b></div><div style="text-align: center;"><p><a href="data/attachment/portal/201602/25/105457k6j16jzxb6q21ljt.jpg" target="_blank"><img src="data/attachment/portal/201602/25/105457k6j16jzxb6q21ljt.jpg"></a></p></div><div><br><div>红外热像仪是一门使用光电设备来检测和<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测量</a>辐射并在辐射与表面温度之间建立相互联系的科学。辐射是指辐射能（电磁波）在没有直接传导媒体的情况下移动时发生的热量移动。现代红外热像仪的工作原理是使用光电设备来检测和测量辐射，并在辐射与表面温度之间建立相互联系。所有高于绝对零度（-273℃）的物体都会发出红外辐射。红外热像仪利用红外探测器和光学成像物镜接受被测目标的红外辐射能量分布图形反映到红外探测器的光敏元件上，从而获得红外热像图，这种热像图与物体表面的热分布场相对应。通俗地讲红外热像仪就是将物体发出的不可见红外能量转变为可见的热图像。热图像的上面的不同颜色代表被测物体的不同温度。通过查看热图像，可以观察到被测目标的整体温度分布状况，研究目标的发热情况，从而进行下一步工作的判断。</div><div><br></div><div><b>红外热像仪设备构成</b></div><div><b><br></b></div><div><div>红外热像仪的构成包5大部分：</div><div>1、红外镜头: 接收和汇聚被测物体发射的红外辐射；</div><div>2、红外探测器组件: 将热辐射型号变成电信号；</div><div>3、<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a>组件: 对电信号进行处理；</div><div>4、<a href="http://display.oecr.com" target="_blank" class="relatedlink">显示</a>组件: 将电信号转变成可见光图像；</div><div>5、<a href="http://opticaldesign.oecr.com" target="_blank" class="relatedlink">软件</a>: 处理采集到的温度数据，转换成温度读数和图像。</div></div><div><br></div><div><b style="line-height: 25.2px;">红外热像仪的现状</b></div><div><b><br></b><div><span style="line-height: 25.2px;">近几年来，</span><span style="line-height: 25.2px;">随着红外热像仪市场需求的快速增长，可以预期，但由于红外热像仪的研制与生产的技术难度大，特别是其核心部件探测器的开发及红外镜头生产技术方面，</span><span style="line-height: 25.2px;">其它行业的资本难以进入该行业，</span><span style="line-height: 25.2px;">而新<a href="http://b.oecr.com/sell" target="_blank" class="relatedlink">产品</a>的研制周期较长，因此，红外热像仪市场的供给不可能在短期内急速扩张，市场竞争更多的是体现在各个公司间新产品开发方面的竞争。</span></div><div><br><div><div>红外热像仪的研制与开发涉及到光学、电子、计算机、<a href="http://theory.oecr.com" target="_blank" class="relatedlink">物理</a>学、图像处理、新<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>、<a href="http://machine.oecr.com" target="_blank" class="relatedlink">机械</a>等多个学科，研制的难度非常高。而以南京波长为首的光学镜头生产<a href="http://b.oecr.com/company" target="_blank" class="relatedlink">企业</a>通过<a href="http://job.oecr.com" target="_blank" class="relatedlink">人才</a>引进、技术攻关和加大投入，在红外热像仪核心零部件（如红外热像镜头）的开发方面获得重大的突破，而波长旗下的子公司南京光研引进NIT公司的红外探测器产品，缩短红外热像仪产品的研制周期，促使得我国红外热像仪的研究开发能力得到了很大的提高。</div><div><br></div></div><div><div><b>红外热像仪选购要点</b></div><div><b><br></b></div><div><div>购买红外热像仪，按照以下的排序进行选择：</div><div>1. 红外探测器： 探测器直接是红外热像仪的核心零部件，它的好坏直接影响成像效果，可分为制冷和非制冷两种，如果我们选用便携式的红外热像仪，就要选在其可靠性高，功耗低，并能快速检测的特点的探测器。现在市面上用得较多的有NIT的非制冷中波红外探测器，它的优势在于，探测速度快，可达超过1600画面每秒，帧频提高了10倍，价格便宜，体积小，整体缩小92%。</div><div style="text-align: center;"><p><a href="data/attachment/portal/201602/25/105456kxkxpox54rkrss8t.png" target="_blank"><img src="data/attachment/portal/201602/25/105456kxkxpox54rkrss8t.png"></a></p><p><br></p></div><div style="text-align: center;"><p><a href="data/attachment/portal/201602/25/105457jhqvovtss7ntjjsn.png" target="_blank"><img src="data/attachment/portal/201602/25/105457jhqvovtss7ntjjsn.png"></a></p><p><br></p></div><div>2.红外热像镜头：看镜头口径和放大倍数。在不考虑体积的情况下，当然是越大越好。同样的增像管情况，原理上是口径越大，观测距离越远，图像越清晰。如果使用的要求较高，也可以使用些精密的红外镜头，如双波段红外镜头，双视场镜头、变焦镜头、180度广角红外镜头、电动程控红外镜头等。</div><div style="text-align: center;"><br></div><div>3.图像增强技术：一般带有这个技术的夜视仪，在相同条件下图像亮度会更好，也更清晰。</div><div>4.分辨率：镜头的分辨率非常重要，分辨率越高显示的图像越清晰。</div><div><span style="word-wrap: normal; color: rgb(143, 143, 143); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 25.2px; background-color: rgb(255, 255, 255);">(</span><span style="word-wrap: normal; font-size: 10.5pt; letter-spacing: 0pt; line-height: 1.8em; color: rgb(68, 68, 68); font-family: Tahoma; background-color: rgb(255, 255, 255);">QQ是：20600600 微信：photics 电话：13986053979)</span></div><div style="text-align: center;"><p><a href="data/attachment/portal/201602/25/104403a7ibgeu4grbuqeeq.jpg" target="_blank"><img src="data/attachment/portal/201602/25/104403a7ibgeu4grbuqeeq.jpg"></a></p><p 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