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Unformatted text preview: a fixed setting, in winter, the toast can be white and in
summer, the toast can be black (Calibration!)
A toaster would be more expensive with sensors to
measure the color and actuators to adjust the timer based
on the measured color.
11 A laundry machine does not measure how clean
the clothes become.
Control without measuring devices (sensors) are
called open-loop control.
12 Ex: Automobile direction control Closed-Loop (Feedback) Control
Compare actual behavior with desired behavior
Make corrections based on the error
The sensor and the actuator are key elements of
a feedback loop
Design control algorithm
Signal Input + Error Attempts to change the direction of the automobile.
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- Spring '08
- Mechanical Engineering