Introduction to Signal Anti-interference Technology and Its Application in DCS System

The interference sources are analyzed and classified.On the basis of this,the corresponding anti-interference technologies and measures are given.The technology is used in the DCS system of the oxygen plant of Nanjing Iron Steel United Co.,Ltd.The practice proves that the anti-interference technology can effectively improve anti-interference ability of the DCS system to reduce the harm to the DCS system from the external interference.