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30-1-2009 Servo systems Bachelor level education for full time and dual program students Wouter J. Hijink 29 July 2010 (last update 30 aug. 2011) ( an.

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Presentation on theme: "30-1-2009 Servo systems Bachelor level education for full time and dual program students Wouter J. Hijink 29 July 2010 (last update 30 aug. 2011) ( an."— Presentation transcript:

1 Servo systems Bachelor level education for full time and dual program students Wouter J. Hijink 29 July 2010 (last update 30 aug. 2011) ( an introduction course ) Werken aan je toekomst

2 Delft University of Technology Werken aan je toekomst Introduction to servo systems - lecture 11 | 30 Contents Welcome Course outline Relationship to other courses What is a servo system ? Summary topics covered in this course Of the first lecture

3 Delft University of Technology Werken aan je toekomst Introduction to servo systems - lecture 12 | 30 Course outline 2 ECTS-points - 56 hours total 7 lectures (2 x 45 minutes) - 10 hours Practical assignments - 14 hours ( if available ) Individual self study - 30 hours Final exam - 2 hours Time management

4 Delft University of Technology Werken aan je toekomst Introduction to servo systems - lecture 13 | 30 Course outline Lecture notesSharepoint / xs4all-site Beta version course readerSharepoint / xs4all-site Selecting Micro-drives (U. Kafader) Maxon Academy Matlab / Simulink / Arduino Computer & project room M-files / Arduino scripting examplesSharepoint / xs4all-site Internet video’s and advised readingWikipedia/youtube Course materials

5 Delft University of Technology Werken aan je toekomst Introduction to servo systems - lecture 14 | 30 Course outline Basic summary of servo components (actuators, sensors, controllers, compensators) Acquire skills to interact with senior control engineers Become able to design and build simple servo systems Form basis to advance yourself through self study Course goals and expectations

6 Delft University of Technology Werken aan je toekomst Introduction to servo systems - lecture 15 | 30 Relationship to other courses Servo-systems is related to other activities in block Course is best studied parallel with Control Engineering ! Sister course of Control Engineering (Regeltechniek) Control Engineering = Theory ; Servo-systems = how-to-build Contents further clarifies principles of Control Engineering Contents are required for project Precision Engineering

7 Delft University of Technology Werken aan je toekomst Introduction to servo systems - lecture 18 | 30 Servo system = Control loops Typically, Servo (sub) system is feedback system Otherwise the output will not closely follow desired track Open loop Closed loop y(t) = u(t)

8 Delft University of Technology Werken aan je toekomst Introduction to servo systems - lecture 16 | 30 What is a servo system ? Same conceptual block diagram, different focus Regulator output is kept constant, servo output tracks varying input signal There are two types of feedback systems : Regulator systems (Watts governor, thermostat) d r(t) /dt = 0 Servo systems(CD player, automobile) d r(t) /dt <> 0

9 Delft University of Technology Werken aan je toekomst Introduction to servo systems - lecture 17 | 30 What is a servo system ? Difference between regulator and servo is semantic Therefore both types always contain servo (sub) systems) The conceptual block diagram assumes conversion or power amplification of signals without specifying how this is achieved. r(t), s(t) and e(t) typically < 5 Watt while u(t) easily kWatt Such operations are only achieved by servo (sub) systems

10 Delft University of Technology Werken aan je toekomst Introduction to servo systems - lecture 19 | 30 Servo system = Cascaded loops Any regulator or Servo setup = cascaded loops With earlier block diagrams, the actuator stage was incl. in controller block Cascaded block diagram This course focuses specifically on the inner (actuator) system

11 Delft University of Technology Werken aan je toekomst Introduction to servo systems - lecture 110 | 30 Covered topics How-to-build controllers in real life How-to-build power amplification stages How-to-build signal processing hardware Summary of different types of actuators and sensors Detailed course : Maxon high precision DC micro drives (<500 W ) Course goals and expectations

12 Delft University of Technology Werken aan je toekomst Introduction to servo systems - lecture 111 | 30 Thank you for your attention Questions ?


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