PCD232A 3BHE022293R0101 ABB

Internal interference:It is caused by the structural layout of the system,circuit design,changes in the properties of components and drift,etc.,mainly including:coupling induction caused by separate capacitance and distributed inductance;electromagnetic field radiation induction;long-term transmission wave reflection;multi-point grounding The interference caused by the potential difference;the interference caused by the parasitic oscillation,as well as thermal noise,flicker noise,spike noise,etc.

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。