红外热像仪在LED行业中的应用
<FONT size=2></FONT><DIV class=O v:shape="_x0000_s1026"> <DIV style="mso-line-spacing: '100 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"> LED作为取代传统照明工具（如白炽灯、卤素灯等）的新型光源，其散热效 </SPAN></DIV> <DIV style="mso-line-spacing: '100 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial">果严重影响LED的实际使用寿命，散热工艺成为LED应用和发展的关键因素，红 </SPAN></DIV> <DIV style="mso-line-spacing: '100 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial">外热像仪可以进行LED温度检测，帮助验证散热工艺。</SPAN></DIV> <DIV style="mso-line-spacing: '100 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"> <?xml:namespace prefix = p ns = "urn:schemas-microsoft-com:office:powerpoint" /><p:colorscheme colors="#ffffff,#000000,#919191,#000000,#ffffff,#618ffd,#fc0128,#fdd900"></p:colorscheme> <DIV class=O v:shape="_x0000_s1026"> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN">LED简介 </SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>LED (Light Emitting Diode)，又称发光二极管，是利用固体半导体芯片作为发光材料，当两端施加正向电压时</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2>，半导体中的载流子发生复合，放出过剩的能量而引起光子发射产生可见光、远红外、近红外光。<SPAN style="mso-spacerun: yes"> </SPAN></FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>LED是一种新型的固态光源，已经在特殊领域显现出自身优异的效果，各种类型的LED、利用LED作二次开发的产</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2>品及与LED配套的产品发展迅速，新产品不断上市，已发展成不少新型产业。展望将来，还期望更进一步地提高。 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2></FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"></SPAN> </DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial">热像仪在LED行业中有哪些主要应用点？ </SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: SimSun; mso-fareast-language: ZH-CN"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>事实上，LED的实际寿命与工作温度往往成反比，如LED使用寿命在工作温度为74℃为10000小时、63℃为25000小</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: SimSun"><FONT size=2>时，小于50℃时，则可为50000小时。根本原因是LED的光电转换效率极差，大约只有15%至20%左右电能转为光输出，</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: SimSun"><FONT size=2>其余均转换成为热能，因此，当大量使用高功率的LED于一块模组，应用于高亮度的操作时，这些极差的转换效率将</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: SimSun"><FONT size=2>造成散热处理的大问题。 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: SimSun"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>热像仪不仅在研发过程中能够发挥作用，而且也可以应用在产品的品质管理等方面。 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><FONT size=2>1 研发:主要是对LED模块驱动电路（包括电源）、光源半导体发热分布分析、及光衰测试等。<SPAN style="mso-spacerun: yes"> </SPAN></FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: SimSun; mso-fareast-language: ZH-CN"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>a）LED模块驱动电路 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>在LED产品研发中，需要工程师进行一部分驱动电路设计，例如整流器电路模块。利用热像仪，工程师可以</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2>迅速而便捷地发现电路上温度异常之处，便于完善电路设计。 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><SPAN style="mso-spacerun: yes"> </SPAN></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: SimSun; mso-fareast-language: ZH-CN">b）LED光源半导体芯片发热 </SPAN></FONT></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><FONT size=2><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><SPAN style="mso-spacerun: yes"> </SPAN>利用热像仪，工程师可以</SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: #fc0128; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-color-index: 6">通过</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial">光源半导体芯片发热红外热图，分析出其芯片在工作时的温度，以及温度</SPAN></FONT><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2>的分布情况，在此基础，达到提高LED产品寿命的目的 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>c）光衰试验 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: SimSun; mso-fareast-language: ZH-CN"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>LED产品的光衰就是光在传输中的信号减弱，而现阶段全球的LED大厂们做出的LED产品光衰程度都不相同，</FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: SimSun">大</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial">功率LED同样存在光衰，这和温度有着直接的关系，主要是由晶片、荧光粉和封装技术决定的。目前，市场上</SPAN></FONT><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2>的白光LED其光衰可能是向民用照明进军的首要问题之一。</FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><p:colorscheme colors="#ffffff,#000000,#919191,#000000,#ffffff,#618ffd,#fc0128,#fdd900"></p:colorscheme><FONT size=2> </FONT> <DIV class=O v:shape="_x0000_s1026"> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><FONT size=2>2 品质管理 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>a）半导体照明：吹制灯泡均匀性 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>通过热像仪抓拍产线玻璃吹泡的过程，进行参数修正，改善掐口工艺，可以有效提高产品成品率，降低成本。</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2> </FONT></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"> <DIV class=O v:shape="_x0000_s1026"> <DIV style="mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: SimSun; mso-fareast-language: ZH-CN"><FONT size=2> b）LED检测芯片封装前的温度 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>LED芯片封装前检测温度可以避免封装后因温度异常，降低废品率。此阶段手不能接触表面，热像仪能够很好</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2>的帮助客户发现此处的问题，作为流水线检测工具。</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2> </FONT></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"> <DIV class=O v:shape="_x0000_s1026"> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><FONT size=2> c）LED成品显示屏开机测试 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>LED显示屏完成后，要做最后验收，通过不同颜色的测试来看屏幕是否符合交货的要求，目前大多数企业都没有</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2>这个流程。使用热像仪后，能够为厂家完善产品检测标准，提高产品质量。</FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><p:colorscheme colors="#ffffff,#000000,#919191,#000000,#ffffff,#618ffd,#fc0128,#fdd900"></p:colorscheme><FONT size=2> </FONT> <DIV class=O v:shape="_x0000_s1026"> <DIV style="mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial">典型客户 </SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>大晨光电、飞利浦照明等。 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2></FONT></SPAN> </DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial">红外热像仪的独特作用 </SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>在使用热像仪前，LED产品企业一直都没有很好的解决这个问题手段或方法。热像仪能够发挥独特作用： </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><FONT size=2>1 通过红外线热像仪检测目标时，不需要断电，操作方便，同时非接触测量使原有的温度场不受干扰；反应速度较快</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>，小于1毫秒。 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><FONT size=2>2 Fluke热像仪IR-Fusion技术：用户采用Fluke专利IR-Fusion技术除了可以拍摄红外图像外，还可以同时捕获一幅可</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2>见光照片，并将其融合在一起，有助于第一时间识别和定位故障。 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2></FONT></SPAN> </DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial">拍摄时可能会遇到哪些问题？ </SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><FONT size=2><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><SPAN style="mso-spacerun: yes"> </SPAN></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial">可能由于观察目标较小，使用160×120热像仪时，会发生很难发现准确的故障点，需要我们更换320×240热像仪</SPAN></FONT><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2>（甚至需要更换镜头）进行检测。 </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2></FONT></SPAN> </DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial">如何才能拍摄优质红外热像？ </SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial"><FONT size=2><SPAN style="mso-spacerun: yes"> </SPAN>使用热像仪进行拍摄时，若要得到一幅优秀的红外热图，我们建议： </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><FONT size=2> 1 需要分辨较小温差的场合，尽量选择热灵敏度较高的热像仪； </FONT></SPAN></DIV> <DIV style="mso-line-spacing: '90 50 0'; mso-margin-left-alt: 216; mso-vertical-align-special: bottom"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: SimSun; mso-ascii-font-family: SimSun; mso-fareast-font-family: SimSun; mso-hansi-font-family: Arial; mso-fareast-language: ZH-CN"><FONT size=2> 2 先用自动模式测量温度范围；然后手动设置水平及跨度，将温度范围设置在最小，并包含有先前测量的温度范围。</FONT></SPAN></DIV></DIV></SPAN></DIV></DIV></SPAN></DIV></DIV></SPAN></DIV></DIV></SPAN></DIV></DIV></SPAN></DIV></DIV>