1 系統(tǒng)硬件結(jié)構(gòu)
??? 本系統(tǒng)的硬件由傳感器、SCB-68接線端子盒、PXI-1010組合機(jī)箱、SCXI-1125可編程隔離放大模塊、SCXI-1141可編程低通濾波模塊、SCXI-1140采樣/保持模塊、PXI-6052E數(shù)據(jù)采集" title="數(shù)據(jù)采集">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡" title="數(shù)據(jù)采集卡">數(shù)據(jù)采集卡、PXI-PCI833X計(jì)算機(jī)控制PXI模塊、MXI-3光纖通信模塊、DFE-530TXI網(wǎng)絡(luò)適配卡等組成，其硬件結(jié)構(gòu)如圖2所示。

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1.1? 振動(dòng)傳感器的選擇及安裝
??? 水電機(jī)組與火電機(jī)組相比，水電機(jī)組的額定轉(zhuǎn)速較低，尤其是水力因素引起的振動(dòng)頻率更低。水電機(jī)組振動(dòng)信號(hào)屬低頻信號(hào)。由于振動(dòng)傳感器現(xiàn)場(chǎng)環(huán)境惡劣、電磁干擾大、溫度變化大，且傳感器支架本身長(zhǎng)期顫動(dòng)會(huì)增加測(cè)量的誤差，因此需選擇可靠性高、抗干擾能力強(qiáng)、精度高及性能穩(wěn)定的振動(dòng)傳感器。為了避免因振動(dòng)傳感器安裝造成附加誤差使測(cè)量值失真，振動(dòng)傳感器應(yīng)合理安裝。本系統(tǒng)在測(cè)量軸擺度時(shí)，選擇電渦流傳感器。它利用電渦流效應(yīng)測(cè)量位置，具有非接觸測(cè)量、抗干擾能力強(qiáng)的優(yōu)點(diǎn)。將電渦流傳感器安裝在軸承殼體上，實(shí)行相對(duì)測(cè)量，測(cè)點(diǎn)位置可選在上導(dǎo)、下導(dǎo)、水導(dǎo)和推力等處，并各安裝兩個(gè)互為90°的電渦流傳感器。在測(cè)量機(jī)架和頂蓋等振動(dòng)時(shí)，選擇地震式傳感器。它測(cè)量基座所連接物體的絕對(duì)振動(dòng)，具有抗震和高穩(wěn)定性的特點(diǎn)。地震式傳感器可直接固定在機(jī)殼上，安裝應(yīng)盡量靠近轉(zhuǎn)軸，并盡可能避開母線出線等電磁場(chǎng)較強(qiáng)的位置，測(cè)點(diǎn)可選取在上、下機(jī)架和推力機(jī)架等處,各安裝兩個(gè)地震式傳感器，分別對(duì)機(jī)架水平方向和垂直方向的振動(dòng)進(jìn)行監(jiān)測(cè)。系統(tǒng)中采用光電式接近開關(guān)獲取鍵相信號(hào)，確定整周期采樣的基準(zhǔn)點(diǎn)。此外，為便于分析振動(dòng)與壓力、工作水頭和上、下游水位的關(guān)系，還應(yīng)安裝有功功率、壓力、上、下游水位相應(yīng)的傳感器。
1.2 數(shù)據(jù)采集模塊
??? 在數(shù)據(jù)采集領(lǐng)域中，有基于多種PC機(jī)總線的PC-DAQ數(shù)據(jù)采集卡，也有基于VXI總線的各種數(shù)據(jù)采集模塊。但是在GPIB、PC-DAQ和VXI三種虛擬儀器體系中，GPIB實(shí)質(zhì)上是通過(guò)計(jì)算機(jī)對(duì)傳統(tǒng)儀器功能的擴(kuò)展與延伸；PC-DAQ直接利用了標(biāo)準(zhǔn)的工業(yè)計(jì)算機(jī)總線，沒(méi)有儀器所需要的總線性能；而一次構(gòu)建VXI系統(tǒng)需要較大的資金投入。PXI是1997年NI公司推出的一種全新的開放性和模塊化儀器總線規(guī)范，它將Compact PCI的集成式觸發(fā)功能與Windows操作系統(tǒng)結(jié)合在一起。在保留PCI總線與Compact PCI模塊結(jié)構(gòu)功能的基礎(chǔ)上，增加了系統(tǒng)參考時(shí)鐘與觸發(fā)器總線等，加之熟悉的Windows環(huán)境，使得PXI系統(tǒng)更適合構(gòu)建工業(yè)自動(dòng)化測(cè)控系統(tǒng)?；赑XI總線規(guī)范構(gòu)建的系統(tǒng)將PC機(jī)的性價(jià)比優(yōu)勢(shì)和PCI總線面向儀器領(lǐng)域的擴(kuò)展結(jié)合起來(lái)，成為一種新型的虛擬儀器系統(tǒng)。PXI除了具有VXI基本相同的性能外，還具有開發(fā)周期短、價(jià)格低、易于組建便攜式自動(dòng)測(cè)試系統(tǒng)等特點(diǎn)。
??? 本系統(tǒng)中數(shù)據(jù)采集通過(guò)現(xiàn)場(chǎng)傳感器將各個(gè)測(cè)量點(diǎn)的信號(hào)經(jīng)過(guò)SCB-68接線端子盒將信號(hào)送到信號(hào)調(diào)理模塊SCXI-1125（可編程隔離放大器）、SCXI-1141（可編程低通濾波器）、SCXI-1140（采樣/保持放大器）進(jìn)行信號(hào)調(diào)理；最后將經(jīng)過(guò)信號(hào)調(diào)理的信號(hào)送到數(shù)據(jù)采集卡PXI—6052E（16路單端/8路差分模擬輸入、采樣頻率333ksps、2路模擬輸出、8條數(shù)字I/O線、2路24位計(jì)數(shù)/定位器）進(jìn)行數(shù)據(jù)采集。數(shù)據(jù)采集卡PXI-6052E上的24位計(jì)數(shù)/定時(shí)器的抗干擾能力不強(qiáng)，為了彌補(bǔ)這一不足，可利用LS7084芯片和電阻、電容組成一個(gè)濾波電路，消除由于噪聲和振動(dòng)等造成的干擾。
1.3? 計(jì)算機(jī)控制模塊
??? 本系統(tǒng)采用了NI公司的組合式機(jī)箱PXI-1010（8個(gè)PXI/Compact PCI和4個(gè)SCXI插槽），零槽控制模塊采用PXI-PCI833X。PXI-PCI833X采用MXI-3技術(shù)。MXI-3技術(shù)是一種PCI總線之間的連接技術(shù)，它采用標(biāo)準(zhǔn)PCI-PCI橋技術(shù)及1.5Gbps高速串口連接，為PXI控制引入了更加快速方便的擴(kuò)展方式。MXI-3技術(shù)不僅可以進(jìn)行PXI/Compact PCI機(jī)箱之間的連接，而且可通過(guò)主控計(jì)算機(jī)直接控制PXI系統(tǒng)。在本系統(tǒng)中將PXI-6052E數(shù)據(jù)采集卡采集到的數(shù)據(jù)通過(guò)PXI-PCI833X模塊和傳輸速率高達(dá)132Mbps的MXI-3光纖通信模塊傳送到現(xiàn)場(chǎng)計(jì)算機(jī)。MXI-3包含了一塊插在現(xiàn)場(chǎng)計(jì)算機(jī)中的PCI MXI-3板卡和插在PXI-1010機(jī)箱控制槽內(nèi)的PXI MXI-3模塊，兩板卡通過(guò)光纜相連，實(shí)現(xiàn)PXI-1010機(jī)箱內(nèi)的各模塊與現(xiàn)場(chǎng)計(jì)算機(jī)的通信。MXI-3技術(shù)可實(shí)現(xiàn)200m距離內(nèi)信號(hào)傳輸，解決了現(xiàn)場(chǎng)計(jì)算機(jī)與數(shù)據(jù)采集模塊之間信號(hào)遠(yuǎn)距離傳輸?shù)膯?wèn)題?，F(xiàn)場(chǎng)計(jì)算機(jī)通過(guò)DFE-530TXI網(wǎng)絡(luò)適配卡與網(wǎng)絡(luò)遠(yuǎn)程監(jiān)控終端相連，實(shí)現(xiàn)遠(yuǎn)程監(jiān)測(cè)。
2? 系統(tǒng)軟件結(jié)構(gòu)
??? 本系統(tǒng)選擇NI公司的LabVIEW 6i作為開發(fā)工具，它采用圖形化編程方案，也稱為G語(yǔ)言。LabVIEW提供了豐富的函數(shù)及子程序庫(kù)，從基本的數(shù)學(xué)函數(shù)到高級(jí)分析庫(kù)（包括信號(hào)處理、窗函數(shù)、濾波器設(shè)計(jì)、線性代數(shù)、概率論與數(shù)理統(tǒng)計(jì)、曲線擬合、傅立葉變換、小波分析" title="小波分析">小波分析等），通過(guò)這些函數(shù)及子程序庫(kù)，可以實(shí)現(xiàn)硬件系統(tǒng)的軟件化，設(shè)計(jì)出符合技術(shù)要求的振動(dòng)監(jiān)測(cè)系統(tǒng)。本振動(dòng)監(jiān)測(cè)系統(tǒng)所用的數(shù)據(jù)采集卡為NI公司的產(chǎn)品，可以使用LabVIEW提供的大量數(shù)據(jù)采集子程序，無(wú)需為數(shù)據(jù)采集卡編制驅(qū)動(dòng)程序。另外LabVIEW的附帶網(wǎng)絡(luò)工具套件，方便了遠(yuǎn)程監(jiān)測(cè)的設(shè)計(jì)。
??? LabVIEW開發(fā)環(huán)境由前面板和流程圖兩部分組成。前面板是人機(jī)交互的圖形用戶接口，集成了多種常用的控制對(duì)象（如開關(guān)、按鈕、示波器、指示器、定時(shí)器等），它相當(dāng)于實(shí)際儀器的操作面板。設(shè)計(jì)時(shí)只需從控件庫(kù)中選取所需的控件，并為它們?cè)O(shè)計(jì)合理的屬性（例如尺寸和量程等）和具體放置位置。這些屬性和位置可通過(guò)程序方便地調(diào)整。前面板的合理設(shè)計(jì)有助于振動(dòng)監(jiān)測(cè)系統(tǒng)功能的實(shí)現(xiàn)并方便操作。因此前面板應(yīng)設(shè)置多段開關(guān)以實(shí)現(xiàn)不同的數(shù)據(jù)處理方法，前面板主要部分是顯示圖形和數(shù)據(jù)，可采用多窗口完成不同信號(hào)的同時(shí)輸出，前面板還應(yīng)有控制窗口和開關(guān)，以實(shí)現(xiàn)對(duì)振動(dòng)監(jiān)測(cè)系統(tǒng)的操作。流程圖則是程序的圖形化源代碼，主要由前面板上控件的圖標(biāo)、函數(shù)圖標(biāo)和連線組成。設(shè)計(jì)時(shí)從函數(shù)庫(kù)中選取所需要的函數(shù)圖標(biāo)，并按照數(shù)據(jù)在程序中傳遞的順序把它們和控件圖標(biāo)的位置統(tǒng)一編排好，再用連線工具將圖標(biāo)連起來(lái)。系統(tǒng)軟件采用模塊化設(shè)計(jì)，其系統(tǒng)軟件功能模塊如圖3所示。采用模塊化設(shè)計(jì)有助于軟件的設(shè)計(jì)和日后的改進(jìn)升級(jí)^[5]。

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