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Devices

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Devices

• They convert computer signals into movement.

1. Some devices are considered actuators themselves

2. Other devices are connected to a computer which sends a response signal to an intermediary actuator. The actuator would convert a computer signal into movement causing an action to happen.

For example: light bulb comes on.

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Devices

Instructions input into the

computerProcessing

Computer Signal sent to

motor

Motor starts operating.

× Stepper motor- most common

× Motors can be used in automatic washing machines, automatic cookers, can cause water to come into the heating systems, greenhouses and dishwashers.

× They can also be used to move robot arms

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Devices

• Actuator connected from computer to buzzer. The purpose of the actuator is to switch the buzzer on or off.

• They are used in automatic cookers.

• They are also used in mobile phones.

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Devices

• An actuator is connected from the computer to the light bulb. The purpose of the actuator is to switch the light on or off.

• They are used in computer-controlled greenhouses in order to control the amount of light.

• They are also used in security lamps and dimmers inside the house.

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Devices

× An actuator is connected from the computer to the heater.

× This is to turn the heater on and off.× Other uses of heaters are: 1. Automatic washing machines2. Automatic cookers3. Central heating systems4. Computer-controlled greenhouses.