Page 23 - Modern Control Systems
P. 23

Preface                                                              xix

                                      Control ler
                                                                               Ophthalmologist
                                                        Laser  « 1
                                                        systemjl|
                                      Argon  laser
                                                 Fiber optics  *  IlidLJJI
                                                  Patient









                                                          (a)

                                                          W
                                                                   Camera and
                                                                     laser
                                               Controller
                                                            ,- +
                               R(s)
                              position                            .v(.v +  1 )(s +  4)  -+Ks)



                                                          (b)




       THE  ORGANIZATION

                        Chapter 1  Introduction to Control Systems.  Chapter  1  provides an introduction  to
                        the  basic  history  of  control  theory  and  practice. The  purpose  of  this  chapter  is  to
                       describe  the general approach to designing and building a control system.

                        Chapter 2 Mathematical Models of Systems.  Mathematical models of physical sys-
                        tems in input-output  or transfer  function  form  are  developed  in Chapter  2. A wide
                       range of systems (including mechanical, electrical, and  fluid)  are considered.

                       Chapter 3 State Variable  Models.  Mathematical  models  of  systems  in state vari-
                       able form  are developed  in Chapter 3. Using matrix methods, the transient response
                       of control systems and  the performance  of these systems are examined.

                       Chapter 4 Feedback  Control  System  Characteristics.  The  characteristics  of  feed-
                       back  control  systems  are  described  in Chapter  4. The  advantages  of  feedback  are
                       discussed, and  the concept  of the system error signal  is introduced.
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