A loop transfer function has stability margin s_m = 0.4 . Which one of the following statements is true?

Question

A loop transfer function has stability margin   s_m = 0.4 . Which one of the following statements is true?

Accepted Answer

The phase margin is at least 0.4 radians.

Answer

The peak value of the magnitude of the frequency response of the sensitivity function is 0.4.

Answer

The peak value of the magnitude of the frequency response of the sensitivity function is approximately 1.67.

Answer

The gain margin is at least 2.5.

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