University of Engineering and Technology Lahore Pakistan BSc Electrical Engineering

2. Zain Ali 2014-EE-616

3. Sensors andits application:

4. Sensors:
 A device that can detect physical
signal and convert into electrical
signal.

5. What type of physical change?

6.  Commonly Detectable Phenomena
•Biological •Chemical •Electric
•Electromagnetic •Heat/Temperature •Magnetic
Mechanical motion •Optical •Radioactivity

7. SENSOR AS PART OF TRANSDUCER :

8. Transducer:
A device which converts one form of energy to another.
Sensor = input to a system
Actuator = output from a system

9. Working

10. BASIC ELECTROCHEMICAL SENSOR:

11. PRINCIPAL OF ELECTROCHEMICAL SENSOR:

12. Hydrophobic membrane prevents liquid electrolyte from
leaking out.

15. Performance:e

16. Performance factors:
sensitivity
selectivity
response
time
and operating life.
Operating life α 1/performance factor

17. concentration:
high sensitivity
good
performance
but
short operating
life

18. Applications

19. Robotics:

21. Sensors
Effectors
Actuators
Controllers
Arms
Most industrial robots have at least the following five parts:

22. Controller

23. PACEMAKER:
Device that is used for artificial impulse generation in human body

24. Pace maker impulse signal generation:

25. ANY QUESTION ?
zmechanics.blogspot.com
zainaliphy@gmail.com

26. Thank you for patience
And time