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Open Loop control Systems have input, then the input is processed by various components like amplifiers, filters etc, then final out stage.
The main difference between open loop and closed loop systems is that in open loop systems there is no feedback.
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BeauImagine a room with a central heating radiator fitted with a control valve. Open loop control describes how the markings on the valve are used to control room temperature. For example, experience may have shown that 30 percent open provides a room temperature of 25º C. So this is where the valve is set to maintain that temperature. However, if it is a sunny rather than a cloudy day and the room heats up, there is no feedback mechanism to close the valve and maintain the temperature to take account of the change in circumstances. Closed loop control adds that feedback. By adding a room thermostat the temperature in the room would be monitored and a signal provided to close the radiator valve as the required temperature is reached thus maintaining the temperature at the set level.
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What is sensitivity of open loop control system?
The sensitivity of an open loop control system is always 1, it is due to no feedback involved in open loop.
What are the disadvantages of closed loop systems?
its costly than open loop system and bulky, too.
How are input and feedback parts of a system are related?
They are either in closed or in open loop system
What is the definition of closed loop control system?
A closed loop control system is a set of mechanical or electronic devices that automatically regulates a process variable to a desired state or set point without human interaction. Closed loop control systems contrast with open loop control systems, which require manual input.
Open loop and closed loop systems?
Very generally, a closed-loop system will have some form of feedback that regulates the system behavior, whereas an open-loop system does not have this feedback. As a simple example, imagine you driving a car on a freeway: your car enters at 50 MPH and you want to be driving at 65 MPH. You know that if you depress the pedal at a certain degree for a certain amount of time, you will eventually accelerate the car to 65 MPH. In an open-loop system, you would have to make the best guess for the angle and amount of time you need to depress the pedal. In a closed-loop system, you are watching your odometer in order to see that you've actually increased your speed to 67 MPH and need to lay off the gas a bit. More importantly, if your car encounters a hill your closed-loop system will be able to recognize the fact that you require more acceleration to maintain your speed, whereas your open-loop system might slow down a lot. It should be clear from this example that closed-loop systems are in general more robust to changes in the system state that aren't considered in your model.
