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頻域指標與時域指標間的關系

發布日期:2022-04-17 點擊率:31

對二階系統來說,其階躍響應與頻率響應之間有嚴密的數學關系。

當阻尼比  才為實數。這說明  諧振峰值         截止頻率        是閉環頻率特性的幅值降到 說明系統反應的快慢,  剪切頻率         相角裕量         調節時間        振蕩次數         諧振頻率         時,  時,系統不會發生諧振,即不存在閉環諧振現象。


 的0.707倍時的頻率, 的大小, 愈大時,系統反應愈迅速。

  
                

       

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