ME5659_LecSuppl_FeedbackControlReview_1

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Figure 1.1 Simplified description of a control system
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a. Early elevators were controlled by hand ropes or an elevator operator. Here, a rope is cut to demonstrate the safety brake, an innovation in early elevators; b. Modern Duo-lift elevators make their way up the Grande Arche in Paris, driven by one motor, with each car counterbalancing the other. Today, elevators are fully automatic, using control systems to regulate position and velocity. Figure 1.2 Elevators Photos courtesy of United Technologies Otis Elevator.
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Figure 1.3 Rover was built to work in contaminated areas at Three Mile Island in Middleton, PA, where a nuclear accident occurred in 1979. The remote controlled robot’s long arm can be seen at the front of the vehicle. Photo © Hank Morgan/Rainbow/PNI.
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(a) (b) (c) Figure 1.4 a. Video laser disc player; b. objective lens reading pits on a laser disc; c. optical path for
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Unformatted text preview: playback showing tracking mirror rotated by a control system to keep the laser beam positioned on the pits. (c) Pioneer Electronics, Inc. Figure1.5 Elevator input and output Figure 1.6 Block diagrams of control systems: a. open-loop system; b. closed-loop system a. system concept; b. detailed layout; c. schematic; d. functional block diagram Figure 1.9 Antenna azimuth position control system: Figure 1.10 Response of a position control system showing effect of high and low controller gain on the output response Figure 1.11 The control system design process Figure 1.12 Equivalent block diagram for the antenna azimuth position control system Figure P1.3 Winder © J. Ayers, 1988. Figure P1.4 Control of a nuclear reactor Figure P1.5 Grinder system © 1997, ASME. Figure P1.6 High-speed proportional solenoid valve © 1996, ASME....
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This note was uploaded on 05/26/2010 for the course ME 5659 taught by Professor Jalili during the Spring '10 term at Northeastern.

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