April 2015
Intermediate to advanced
1056 pages
24h 40m
English
Content preview from Control Systems Engineering
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3
BLOCK DIAGRAM REDUCTION TECHNIQUES
3.1 Introduction to Block Diagram
A block diagram is a diagrammatic representation of the cause-and-effect relationship between the input and output of a physical system represented by the flow of signals. It gives the relationship that exists between various components of a system. The open-loop and the closed-loop systems discussed in Chapters 1 and 2 can be represented by using the block diagram reduction techniques.
3.2 Open-Loop and Closed-Loop Systems Using Block Diagram
A system that cannot change its output in accordance to the change in input is known as a open-loop system. Such an open-loop system can be represented by using a block diagram as shown in Fig. 3.1.
Fig. 3.1 ∣ Open-loop system
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