Control systems. Flashcards
(16 cards)
What is a control system?
A control system consists of one or more computers used to regulate the operation of other devices.
What is a sensor?
A device which automatically inputs data into a computer system, where the data is constantly changing and can be measured. They are used to detect data in the surrounding environment.
What are light sensors used for?
- Automatic doors
- Automatic greenhouses
- Burglar alarm systems
- Street lighting control
What are pressure sensors used for?
- Burglar alarms
- Automatic washing machines
- Robotics
- Environmental monitoring
What are temperature sensors used for?
- Automatic washing machines
- Central heating systems
- Automatic greenhouses
- Cookers
What are sound sensors used for?
- Burglar alarm systems
- Voice recognition
What are proximity sensors used for?
- Burglar alarm systems
- Speed detection
What are pH sensors used for?
- Automatic greenhouses
- Aquariums
- Chemical manufacturing
- Testing drinking water
What are humidity sensors used for?
- Factories
- Automatic greenhouses
- Agriculture
- Environmental monitoring
What are the advantages of sensors?
They have more accurate readings, can monitor things constantly, and there is no need of human intervention.
What is a control device?
Output devices that work in conjunction with sensor input devices and commands from computers in order to control a process. The control device physically changes something as output.
What is another word for “control device”?
Actuator.
What are motors used for?
- Spinning discs in hard disc drives
- DVD player
- Spinning cooling fans
- Automatic washing machines
- A/C
- Robot arms
What are buzzers used for?
- Microwave ovens
- Alarm systems
What are heaters and coolers used for?
- Central heating systems
- Washing machines
- Automatic greenhouses
What are lights and lamps used for?
- Security lights
- Automatic greenhouses
