L202照度亮度�?参数-价格-中国粉体罐�/title>

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L202<span>数字光度计是一种便携式仪器，用于精确测量照度（勒克斯）和屏幕亮度（</span><span>cd/m</span><sup><span>2</span></sup><span>）、�/span></p><p><span>光度计由一个手持式显示单元、一个带连接电缆的探测器，余弦校准扩散环，带阴影环的亮度接触探头咋�/span>RS232<span>连接线缆组成、�/span></p><p><span>显示单元包括一个自动量程放大器、带背光照明皃�/span>4</span><sup><span>1</span></sup><span>/</span><sub><span>2</span></sub><span>数字液晶显示器和</span>PP3<span>型电池。阳极氧化铝主体包含大面积硅光电二极管、探测器放大器，以及特殊选择的滤色玻璃，可调节探测器的响应，使之不�/span><span>CIE </span><span>V(��)<span>光学响应密切匹配。异形扩散环为探测器提供精确的余弦校正角响应＋�/span><span>进行</span><span>照度测量、�/span><span>尅�/span><span>亮度探头与余弦扩散环互换＋�/span><span>�?/span><span>实现接触测量</span>CRT<span>戕�/span><span>LCD</span><span>屏幕亮度。可以在探头周围安装阴影环，以减少背景光的影响、�/span></p><p><span>探测器外壳内的开关可自动切换</span>lux<span>咋�/span><span>cd/m</span><sup><span>2</span></sup><span>的光度计校准值，并点亮一�?/span>LED<span>指示所选择的单位、�/span></p><p></p><p><span>国�/span><span>L202<span>照度亮度讠�/span></p><p><span>产品特征</span></p><p><span>2 </span><span>坚固紧凑，适合现场、工厂和实验室使�?/span></p><p><span>2 </span><span>可拆卸探夳�/span></p><p><span>2 </span><span>可在人造光源或者自然光源条件下精确测量</span></p><p><span>2 </span><span>微处理控制，操作简協�/span></p><p><span>2 </span><span>明视过滤器与<span>CIE V</span><span>��相应非常匹配</span></p><p><span>2 </span><span>直接读取照度</span></p><p><span>2 </span><span>高精度修正余弦扩敢�/span></p><p><span>产品应用</span></p><p><span>? </span><span>办公宣�span>&</span><span>工厂光线测量</span></p><p><span>? </span><span>质量控制测量</span></p><p><span>? </span><span>外部照明</span></p><p><span></span></p><p><span>技术参�?/span></p><table align="center" cellspacing="0" cellpadding="2" border="1" bordercolor="#f2f2f2" width="100%"><tbody><tr><td colspan="2"><p><strong><span>显示单元</span></strong></p></td></tr><tr><td><p><strong><span>型号</span></strong><strong></strong></p></td><td><p><span>L201</span></p></td></tr><tr><td><p><strong><span>显示单元控制�?/span></strong><strong></strong></p></td><td><p><span>80C51 8 <span>位微控制器，</span><span>3.1684MHz</span><span>室中</span></p></td></tr><tr><td><p><strong><span>积分时间</span></strong><strong></strong></p></td><td><p><span>0.33 s</span></p></td></tr><tr><td><p><strong><span>范围</span></strong><strong></strong></p></td><td><p><span>0 ~ 19999 lux</span></p><p><span>分辨� <span>1 lux</span></p></td></tr><tr><td><p><strong><span>准确�?/span></strong><strong></strong></p></td><td><p><span>测量精度��<span>2</span><span>数位，线性误差小亍�/span><span>1%</span><span>，范围为</span><span>1~20000lux</span></p></td></tr><tr><td><p><strong><span>键盘操作</span></strong><strong></strong></p></td><td><p><span>3<span>开关键盗�/span></p></td></tr><tr><td><p><strong><span>显示</span></strong><strong></strong></p></td><td><p><span>4</span><sup><span>1</span></sup><span>/</span><sub><span>2</span></sub><sub></sub><span>LCD<span>数字显示</span><span>＋�span>10 mm</span><span>字符高度</span></p></td></tr><tr><td><p><strong><span>电源</span></strong><strong></strong></p></td><td><p><span>9V PP3 <span>电池</span></p></td></tr><tr><td><p><strong><span>校准</span></strong><strong></strong></p></td><td><p><span>**校准精度<span>3%</span><span>，可追溯偶到</span><span>NPL</span><span>光学计量标准</span></p><p><span>可见光光谱明视颜色校准误�?span>1% </span></p></td></tr><tr><td><p><strong><span>连接�?/span></strong><strong></strong></p></td><td><p><span>8<span>针微垊�/span><span>DIN</span><span>探测器连接器</span></p><p><span>6<span>针微垊�/span><span>DIN RS232</span><span>连接器（仅供工厂使用（�/span></p></td></tr><tr><td><p><strong><span>温度范围</span></strong><strong></strong></p></td><td><p><span>0 ~40<span>℃，</span><span>80%</span><span>相对湿度</span></p></td></tr><tr><td><p><strong><span>尺寸</span></strong><strong></strong></p></td><td><p><span>150mm*80mm*45mm</span></p></td></tr><tr><td><p><strong><span>重量</span></strong><strong></strong></p></td><td><p><span>0.35 kg</span></p></td></tr><tr><td colspan="2"><p><strong><span>探测�?/span></strong></p></td></tr><tr><td><p><strong><span>型号</span></strong><strong></strong></p></td><td><p><span>DET201L-Cos<span>实验室探测器，由铝外壳，光电二极管和</span><span>PCB</span><span>组件，玻璃过滤器组件和余弦扩散器组成</span></p></td></tr><tr><td><p><strong><span>探测�?/span></strong><strong></strong></p></td><td><p><span>光电二极箠�/span></p></td></tr><tr><td><p><strong><span>温度系数</span></strong><strong></strong></p></td><td><p><span>-0.10% /<span>ℂ�/span></p></td></tr><tr><td><p><strong><span>放大增益</span></strong><strong></strong></p></td><td><p><span>10</span><sup><span>5</span></sup><span> V/A</span></p></td></tr><tr><td><p><strong><span>电流频率</span></strong><strong></strong></p></td><td><p><span>0~0.5Mhz</span></p></td></tr><tr><td><p><strong><span>线�?/span></strong><strong></strong></p></td><td><p><span>测量范围内＜<span>1%</span></p></td></tr><tr><td><p><strong><span>尺寸</span></strong><strong></strong></p></td><td><p><span>38 mm<span>直径</span><span>*30 mm</span><span>髗�/span></p></td></tr><tr><td><p><strong><span>温度范围</span></strong><strong></strong></p></td><td><p><span>运行９�span>-20 ~ +60</span><span>ℂ�/span></p><p><span>储存９�span>-20 ~ +70</span><span>ℂ�/span></p></td></tr><tr><td><p><strong><span>探测器外売�/span></strong><strong></strong></p></td><td><p><span>黑色阳极氧化铝合金外売�/span></p><p><span>探测器放大器通过一根多芯电缆连接到一�?span>8</span><span>针微型连接器三�/span></p></td></tr><tr><td><p><strong><span>光谱响应</span></strong><strong></strong></p></td><td><p><span>参照上图</span></p></td></tr><tr><td><p><strong><span>角度响应</span></strong><strong></strong></p></td><td><p><span>根据<span>Lambert</span><span>余弦定律精确余弦修正，从真实响应�?/span><span>70</span><span>��法向入射**误差小于</span><span>5%</span></p></td></tr><tr><td><p><strong><span>探测器组仵�/span></strong><strong></strong></p></td><td><p><span>黑色阳极氧化铝合金外壳，可单独选择多种颜色的滤镜匹酌�span>V(</span><span>��</span><span>)</span><span>，特殊异形丙烯酸扩散器高精度余弦角度响应</span></p></td></tr></tbody></table> </div>  <div class="cxd"> <div 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