Different Types of Sensors

1. Temperature sensors
 Bimetallic strips
 Resistance temperature detectors (RTDs)
 Thermistors
 Thermocouples
 Thermodiodes and transistors

2. Bimetallic strips

3. Bimetallic strips

4. Resistance temperature detectors
(RTDs)

5. Thermistors
Bead type have platinum wire sintered in to a ceramic body (bead)
Metalized surface contact thermistors are called chips or flakes

6. Thermistors

7. Thermocouples

8. Thermocouples

9. Thermodiodes and transistors

10. Light sensors
 Photo resistors
 Photodiode
 phototransistors

11. Photo resistors

12. Photodiode

13. Photodiode

14. phototransistors

15. phototransistors

16. Proximity sensor
 Optical encoders
 Hall Effect sensors
 Capacitive sensors
 Eddy current proximity sensors
 Inductive proximity sensors
 Pneumatic proximity sensors
 Proximity switches

17. Eddy current proximity sensors

18. Eddy current proximity sensors

19. Selection of sensors
 Accuracy required
 Precision
 Sensitivity
 Operating range
 Resolution
 Speed range
 Reliability
 Accuracy required
 Precision
 Sensitivity
 Operating range
 Resolution
 Speed range
 Reliability

20. THANK YOU