Calibration area normalization method(CANM) was used for quantitative analysis of α-pinene,β-pinene and dimethyl carbonate by 1102-Gas Chromatograph with flame ionization detector and SIMPCITY-5 capillary chromatogr...Calibration area normalization method(CANM) was used for quantitative analysis of α-pinene,β-pinene and dimethyl carbonate by 1102-Gas Chromatograph with flame ionization detector and SIMPCITY-5 capillary chromatographic column.α-Pinene was chosen as standard material,and the relative mass correction factors of dimethyl carbonate and β-pinene were determined,which were tested by recovery tests.The results showed that the relative mass correction factors compared with α-pinene were 5.2811 and 1.0035,and the recovery of three components was:99.21%,100.27% and 100.85%,respectively.Area normalization method(ANM) was also used for quantitative analysis.In comparison with results of CANM,the maximum relative error of each method was:75.58% and 1.17%.展开更多
为实时监测配电网馈线运行状况,研制了一套由分布式架构监测终端和上位机组成的10 k V馈线故障监测系统。系统的电压型和电流型监测终端分别安装于变电站10 k V母线和馈线出口处,上位机位于变电站控制室中。电压型和电流型监测终端采用R...为实时监测配电网馈线运行状况,研制了一套由分布式架构监测终端和上位机组成的10 k V馈线故障监测系统。系统的电压型和电流型监测终端分别安装于变电站10 k V母线和馈线出口处,上位机位于变电站控制室中。电压型和电流型监测终端采用RS-485方式通信,兼作通信管理机的电压型监测终端和上位机采用以太网方式通信,以母线电压阈值越限作为启动故障录波的依据。经动模系统测试,验证了系统对10 k V馈线故障监测的可行性。展开更多
文摘Calibration area normalization method(CANM) was used for quantitative analysis of α-pinene,β-pinene and dimethyl carbonate by 1102-Gas Chromatograph with flame ionization detector and SIMPCITY-5 capillary chromatographic column.α-Pinene was chosen as standard material,and the relative mass correction factors of dimethyl carbonate and β-pinene were determined,which were tested by recovery tests.The results showed that the relative mass correction factors compared with α-pinene were 5.2811 and 1.0035,and the recovery of three components was:99.21%,100.27% and 100.85%,respectively.Area normalization method(ANM) was also used for quantitative analysis.In comparison with results of CANM,the maximum relative error of each method was:75.58% and 1.17%.
文摘为实时监测配电网馈线运行状况,研制了一套由分布式架构监测终端和上位机组成的10 k V馈线故障监测系统。系统的电压型和电流型监测终端分别安装于变电站10 k V母线和馈线出口处,上位机位于变电站控制室中。电压型和电流型监测终端采用RS-485方式通信,兼作通信管理机的电压型监测终端和上位机采用以太网方式通信,以母线电压阈值越限作为启动故障录波的依据。经动模系统测试,验证了系统对10 k V馈线故障监测的可行性。
