Maricopa Community Colleges  ELC214   20082-99999 
Official Course Description: MCCCD Approval: 11/27/07
ELC214 20082-99999 LEC 3 Credit(s) 3 Period(s)
Servo Systems
Introduction to Servo Systems usages and applications of servos, types of transducers used in servo systems, driver systems including motors, power amplifiers, and control amplifiers; rotary and velocity control systems; and resolvers, optical encoders, linear variable differential transformers, and linear position servo systems.
Prerequisites: (FAC/HVA/ELC105 or ELC119) and (FAC/HVA186 or GTC185). Corequisites: ELC214LL.
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MCCCD Official Course Competencies:
 
ELC214   20082-99999 Servo Systems
1. Compare and contrast open-loop systems with closed-loop control systems. (I)
2. Define terms associated with open and closed loop systems. (II)
3. Explain the operation, and construction of linear and rotary potentiometers. (III)
4. Define the terms associated with potentiometers. (IV)
5. Calculate sensitivity for linear and rotary potentiometers. (V)
6. Compare and contrast the alternating current (AC) and the direct current (DC) tachometer generator. (VI)
7. Calculate output verses speed. (VII)
8. Describe the operation of encoder and resolver that provide an output position. (VIII)
9. Define the terms associated with encoder and resolver devices. (IX)
10. Compare and contrast absolute with incremental encoders. (X)
11. Discuss the advantages and disadvantages of using resolvers to optical encoders. (XI)
12. Explain the operation of a direct current (DC) servo motor. (XII)
13. Compare and contrast the characteristics of power and control amplifiers. (XIII)
14. Define the terms associated with gain of open and closed loop control systems. (XIV)
15. Calculate gains associated with open and closed loop control systems. (XV)
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MCCCD Official Course Outline:
 
ELC214   20082-99999 Servo Systems
    I. Control systems
        A. open-loop
        B. closed-loop
      II. Terms for open and closed loop systems
          A. proportional
          B. comparator
          C. error signal
          D. servomechanism
          E. automatic
          F. manual
          G. feedback
        III. Linear and rotary potentiometers
            A. operation
            B. construction
          IV. Terms for linear and rotary potentiometers
              A. sensitivity
              B. excitation
              C. displacement
              D. slider
            V. Calculate sensitivity
                A. linear
                B. rotary
              VI. Tachometer generator
                  A. alternating current (AC)
                  B. direct current (DC)
                VII. Calculate
                    A. output v. speed
                  VIII. Operation
                      A. optical encoder
                      B. resolver
                    IX. Terms associated with optical encoder and resolver.
                        A. incremental
                        B. absolute
                      X. Incremental and absolute.
                          A. compare
                          B. contrast
                        XI. Advantages and disadvantages.
                            A. resolvers
                            B. optical encoder
                          XII. Direct current motors.
                              A. operation
                              B. permanent magnet
                              C. function of the brushers
                              D. linear speed verses torque curve
                              E. starting torque
                              F. specifications
                            XIII. Characteristics of amplifiers.
                                A. control
                                B. power
                              XIV. Terms associated with gain of an open and closed loop control system.
                                  A. signal form
                                  B. gain
                                  C. polarity
                                  D. forward path
                                  E. feedback path
                                XV. Calculate gains
                                    A. gain
                                    B. control amplifier gain
                                    C. power amplifier gain
                                    D. motor gain
                                    E. system gain (open loop)
                                    F. feedback gain
                                    G. loop velocity gain (closed loop)
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