描述
计算机控制系统中干扰的来源是多方面的，有时甚至是错综复杂。总体上，按照来源，干扰可分为内部干扰和外部干扰。外部干扰与系统所在环境和使用条件有关，与系统内部结构无关。内部干扰则由系统结构布局、制造工艺等引入。
Used- Stokes Microvac Rotary Piston Vacuum Pump, model
Alcatel R601B / 2063+ Roughing Pump and Roots Blower Co
Republic Regenerative Blower HRB1502 ring side channel
Up to 776 cfm and 189″H2O (Pressure) or 189″H2O(Vacuum)
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Rotary Vane Oil Vacuum Pump with Motor MVP-432 NIB
Oil Rotary Piston Vacuum Pump WSSR 7.5K
Roots Vacuum Pump FRU1440 NIB
EC150L NASH VACUUM PUMP SYSTEM
EIM275 EDWARDS VACUUM PUMP, 8.5 KW
