ALV-CorrTector检测单�?参数-价格-中国粉体罐�/title>

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$(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p><span>德国ALV新出品的ALV-CorrTector-Ⅱ检测单元由一个多tau数字相关器和一个雪崩式二极管单光子检测器（APD）组成，采用一体式设计，该产品能提供超�?0Mcps的计数率，并减小了后脉冲效应及暗计数值，同时加上一个额外的后脉冲校正方案，使得该产品成为动静态光散射仪以及扩散波谱实验的理想选择，能提供媲美“准互相关技术”装置所能提供的滞后时间测量范围、�/span></p><p><span>该产品量子效率峰值可�?0%，在532nm波长下量子效率可�?0%，在488nm波长下，量子效率可达53%、�/span></p><p><span>该产品采用了APD检测器，适用于动静态光散射、扩散波谱、荧光相关光谱、动态光散射为原理的粒径表征以及光子相关光谱等。通常在这些实验中，需要高量子效率来保证检测器的性能。和PMT一样，在亚��s级滞后时间范围不建议只使用一个检测器，通常要采用互相关或者准互相关技术、�/span></p><p><span>APD在蓝色波长到近红外波长宽波段范围内都具有高灵敏度，同时其暗计数率很低，通常只有250cps，后脉冲也很低，另外APD热漂移低，不易受环境温度变化的影响，同时ALV公司提供了自行研发的过载保护装置、�/span></p><p><span>总而言之，该检测单元结合ALV-700X/USB系列数字相关器以及ALV开发的硅雪崩光电二极管，不仅仅是提供了一个简单直接的实验装置（激光进/相关函数出），还能在保证计数率线性前提下以及检测器自身相关贡献低的情况下给出结果，要知道在大部分光子相关实验中对于检测器来说这都是重要的两个参数、�/span></p><p><span>该产品通过简单的迷你USB和电脑相连，兼容WINDOWS10系统。该产品体积小，重量轻，功耗小，长宽高�?20��58��30mm，重量约�?50g。该产品建议使用温度�?5℃到35℃，当用户希望在15℃以下进行试验时，敬请垂询，温度高于35℃时可以进行实验，但是在高温下操作，热稳定性会受到一定的影响、�/span></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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