Important tabels and figures Important tabels and figures .......................................................................................................... 1 Second order transfer function: time domain ........................................................................... 2 Effect of a Third Pole ................................................................................................................... 4 Effect of a zero ............................................................................................................................ 5 Table 8.1: Laplace and z-domain ................................................................................................ 6 Routh array ................................................................................................................................. 7 Second order transfer function: frequency domain .................................................................. 8 Nichols chart ............................................................................................................................. 11 Second order transfer function: z-domain ............................................................................... 12 1 Second order transfer function: time domain H ( s) = 1 2 (s ω n ) + 2ς s ω n + 1 2 3 Effect of a Third Pole H (s) = 1 (s αςω n + 1)([ s ωn )2 + 2ς s ωn + 1] 4 Effect of a zero H ( s) = s αςω n + 1 (s ω n )2 + 2ς s ω n + 1 5 Table 8.1: Laplace and z-domain 6 Routh array 7 Second order transfer function: frequency domain H (s) = 1 2 (s ω n ) + 2ς s ω n + 1 8 9 10 Nichols chart 11 Second order transfer function: z-domain 12