Objective In this activity, you will compare closed-loop and open-loop control systems. Background/Scenario An open-loop control system does not monitor the output in order to determine what adjustments to make to the input. For example, when using a clothes dryer you might set the imer on he dryer to run the drying cycle for one hour. Athe end of the hour, the dryer wil wop. The level of dryness of the dothes will vary depending upon their level of wetness at the beginning of the cycle. In a cosed-loop control system, the output is measured to determine whether tis the desired output and adjust the input as appropriate. For example, the clothes dryer is equipped with moisture sensors, the input may be a level of dryness that adjusts the cycle by extending the drying time unil the sensors indicate the dothes are dried to a desired level. Compare the systems listed in the table and determine if they are closed-loop or open-loop control systems. Briefly explain your selections in the space provided. Systems OpeniClosed Loop Explain Your Answer Clothes dryer with moisture sensor Closed The moisture sensors provide measured output that is compared to a reference for desired dryness. The controller will extend the drying cycle unti the input and output are equal. Light switch to tum on the ight Thermostat to koep a constant emperature Volume on a rado Vehicle ignion switch Celing fan Clothes washing machine with water level sensor From the Open Loop systema, select one and describe how you might make it a Closed Loop system:
Objective In this activity, you will compare closed-loop and open-loop control systems. Background/Scenario An open-loop control system does not monitor the output in order to determine what adjustments to make to the input. For example, when using a clothes dryer you might set the imer on he dryer to run the drying cycle for one hour. Athe end of the hour, the dryer wil wop. The level of dryness of the dothes will vary depending upon their level of wetness at the beginning of the cycle. In a cosed-loop control system, the output is measured to determine whether tis the desired output and adjust the input as appropriate. For example, the clothes dryer is equipped with moisture sensors, the input may be a level of dryness that adjusts the cycle by extending the drying time unil the sensors indicate the dothes are dried to a desired level. Compare the systems listed in the table and determine if they are closed-loop or open-loop control systems. Briefly explain your selections in the space provided. Systems OpeniClosed Loop Explain Your Answer Clothes dryer with moisture sensor Closed The moisture sensors provide measured output that is compared to a reference for desired dryness. The controller will extend the drying cycle unti the input and output are equal. Light switch to tum on the ight Thermostat to koep a constant emperature Volume on a rado Vehicle ignion switch Celing fan Clothes washing machine with water level sensor From the Open Loop systema, select one and describe how you might make it a Closed Loop system:
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Transcribed Image Text:Objective
In this activity, you wil compare closed-loop and open-loop control systems.
Background/Scenario
An open-loop control system does not monitor the output in order to determine what adjustments to make to
the input. For example, when using a clothes dryer you might set the imer on the dryer to run the drying cycle
for one hour. At the end of the hour, the dryer will stop. The level of dryness of the dothes wil vary dependng
upon their level of wetness at the beginning of the cycle.
In a dosed-loop control system, the output is measured to determine whether t is the desired output and
adjust the input as appropriate. For example, I the clothes dryer is equipped with moisture sensors, the input
may be a level of dryness that adjusts the cycle by extending the drying time undil the sensors indicate the
dothes are dried to a desired level.
Compare the systems listed in the table and determine if they are closed-loop or open-loop control systems.
Briefiy explain your selections in the space provided.
Systems
OpeniClosed Loop
Explain Your Answer
Clothes dryer with moisture sensor Closed
The moisture sensors provide measured
output that is compared to a reference for
desired dryness. The controller will extend
the drying cycle until the input and output are
equal.
Light switch to tum on the light
Thermostat to keep a constant
temperature
Volume on a radio
Vehicle ignition switch
Celng fan
Clothes washing machine with
water level sensor
From the Open Loop systems, select one and describe how you might make it a Closed Loop system:
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