第九章单元测试
- The poles of the closed-loop transfer function of a system, H(s), will depend on the form of reference input u(t). （ ）
- For unity feedback, system type with respect to reference input is determined by the number of integrators in its forward path open-loop transfer function L(s).（ ）
Given the feasible design region detailed below, which of the following best describes the imposed 2% band settling time constraint. （ ）
See the following block diagram of a system, what is the appropriate controller structure for achieving zero steady-state output if d(t) is a ramp input disturbance? （ ）- Given a second-order transfer function with damping ratio
, natural frequency 
and static gain K, which parameters of the 2nd order system affect the settling time? （ ）
A:对 B:错
答案:错
A:对 B:错
A:ts ≤ 4 s B:ts ≤ 2 s C:ts ≤ 8 s D:ts ≤ 1 s
A:
B:
C:
D:
A:damping ratio
B:All of them
C:static gain K
D:natural frequency 
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