描述
内部干扰:是由系统的结构布局、线路设计、元器件性质变化和漂移等原因造成的,主要有:分别电容、分布电感引起的耦合感应;电磁场辐射感应;长线传输的波反射;多点接地造成的电位差引入的干扰;寄生震荡引起的干扰以及热噪声、闪变噪声、尖峰噪声等。
Intervac Liquid Ring Vacuum Pump System 50HP Travaini
Intervac 50HP Liquid Ring Vacuum Pump System Travaini
BOC Edwards IPX100 Dry Vacuum Pump (IPX 100 Drypump)
Rebuilt Stokes 212H-11, 150 CFM , 3″ ASA In. New Motor
Stokes Rotary Lobe Blower, Model 607-1, V- Belt Drive
Edwards QMB1200 Roots Blower Vacuum Pump 980.0 CFM
Duroflow Positive Displacement Blower 6606A6A 50HP
Duroflow Positive Displacement Vacuum 30 HP 4.5 X 9