A Comparison of Two Basic Servomechanism Types

[1]  G. D. Mccann,et al.  Dimensionless Analysis of Servomechanisms by ElectricaI Analogy , 1946, Transactions of the American Institute of Electrical Engineers.

[3]  S. W. Herwald.  Considerations in servomechanism design , 1944, Electrical Engineering.

[4]  Herbert Harris,et al.  The frequency response of automatic control systems , 1946, Electrical Engineering.