Sensors Flashcards
1
Q
What are the main 9 types of sensor?
A
- humidity (moisture)
- light
- infra-red
- pressure
- acoustic
- gas
- pH
- magnetic field
- temperature
2
Q
What is the definition of a sensor?
A
- A hardware device that can take measurements of physical properties, such as temperature or pressure, from real world surroundings.
3
Q
Data taken by sensors is usually in what form?
A
Analogue
4
Q
What does analogue mean?
A
That data has no discrete value and the data changes smoothly rather than in exact jumps
5
Q
What are actuators?
A
- They are motors that are commonly used in conjunction with sensors to control a mechanism
6
Q
What are some examples of actuators?
A
- opening a valve or door
- starting a pump
- turning a wheel
