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Aiming at the problem that there isn’t any standardized calibration method for the performance index of surface plasmon resonance(SPR) sensor,the calibration method for key performance indices of SPR sensor is summarized and proposed based on the comparison of relative methods and definition of each index.Experimental data of sucrose solutions with various concentrations are obtained by the self-building SPR instrument,and then the calibration method is used to determine the performance indices,such as noise,drift,sensitivity,resolution,linearity,dynamic range and reproducibility.Experimental results show that the definition of indices is reasonable,and the calibration method is correct,which has great significance for performance evaluation of SPR sensor. 相似文献
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列车再生制动能量约占总牵引能量的10%~30%,其高效利用对铁路牵引供电系统的绿色低碳建设有着重要意义。现有的铁路牵引供电系统存在分相区,能量不能跨区间流动,制约了再生制动能量在牵引供电系统内部的利用。为了解决该问题,文章提出了一种网络化牵引供电系统,该系统在分区所内安装能量调度装置,使相邻供电区间得以联通。文章介绍了该网络化牵引供电系统的结构拓扑与能量调度装置的工作原理,并从系统节能降本的角度,提出了一种面向能量调度装置群、以电费最少为目标的优化调度策略。基于实际线路工况的仿真结果表明,相比传统牵引供电系统,网络化牵引供电系统的正向电度可降低17.3%,变电所最大功率可降低约19.0%。仿真验证了该网络化牵引供电系统的工作原理及调度策略的正确性和有效性。 相似文献
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