描述
差模干扰:也称串模干扰,就是串联与信号源回路之中的干扰。它串联在信号源回路中,与被测信号相加后输入系统。产生差模干扰的因素主要有分布电容的静电耦合、空间的磁场耦合、长线传输的互感、50HZ的工频干扰,以及信号回路中元件的参数变化等。
412H-10 STOKES VACUUM PUMP, 15 HP
412H-20 STOKES VACUUM PUMP, 10 HP
GENTIX Q-PIX COLONY PICKER WITH VACUUM PUMP MANUALS
Used- Busch Single Stage Cobra Dry Screw Vacuum Pump, M
Used- Busch Single Stage Cobra Dry Screw Vacuum Pump, M
Used- Busch Single Stage Cobra Dry Screw Vacuum Pump, M
USED: Edwards two stage rotary vane vacuum pump, model
Leybold/Oerlikon TMP 1000C Turbo Pump ” REFURBISHED