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逻辑电路在动态工作时引起的内部干扰称为过渡干扰。我们在自动测量系统的动态调试过程中,发现这种过渡干扰对控制电路影响较大,容易造成逻辑关系错乱,控制失灵,甚至破坏电路的正常工作。随着对自动控制系统可靠性要求的不断提高,抗干扰能力成为一个重要问题。本文对过渡干扰产生的原因以及抑制措施作一简要介绍。
Internal disturbances caused by logic circuits during dynamic operation are called transitional disturbances. In the process of dynamic debugging of the automatic measurement system, we found that this kind of transitional disturbance has a great influence on the control circuit, which may easily lead to the disorder of logic, the control failure, or even destroy the normal operation of the circuit. With the continuous improvement of the reliability requirements of automatic control systems, anti-interference ability has become an important issue. This article gives a brief introduction of the causes of transitional interference and the suppression measures.