Revision topic 1      SensorsAnalogue and Digital      Control
Example question
What is a sensor exactly?• Sensors measure the physical world and translate  into an analogue electrical signal.• Examples...
Analogue and Digital•   Analogue signals use a    continuous range of    values – like those from a    sensor.•   Digital ...
Monitoring and Control• We can’t control the weather• We just measure - Monitoring                • We do control machines...
Feedback and control            Analogue            to digital            converter     ComputerSensor in                 ...
Example question
Mark Scheme Answers
Follow up question
Mark Scheme Answers
Upcoming SlideShare
Loading in...5
×

Revision topic 1 sensors and control

136

Published on

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
136
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
1
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Revision topic 1 sensors and control

  1. 1. Revision topic 1 SensorsAnalogue and Digital Control
  2. 2. Example question
  3. 3. What is a sensor exactly?• Sensors measure the physical world and translate into an analogue electrical signal.• Examples are: – Light – Sound – Temperature – Pressure – Acceleration – Motion Value = Analogue value that varies continuously – Heat
  4. 4. Analogue and Digital• Analogue signals use a continuous range of values – like those from a sensor.• Digital signals have discrete values, such as on/off or 0/1. Inbetween values are not used. Analog to Sensor Digital Computer Converter
  5. 5. Monitoring and Control• We can’t control the weather• We just measure - Monitoring • We do control machines • The key concept is feedback
  6. 6. Feedback and control Analogue to digital converter ComputerSensor in Program the arm Sets control values Digital to Motor/ Analogue Actuator in converter the arm
  7. 7. Example question
  8. 8. Mark Scheme Answers
  9. 9. Follow up question
  10. 10. Mark Scheme Answers
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×