Done by group Mars from Khalifa Secondary Independent School for Boys under supervision from AL-Bairaq

1. AL-BAIRAQ
I AM DISCOVERING MATERIALS
SMART SENSORS
M AR S
Y A M A N O M A R K H A M E E S
R A K A N H A M A D

2. OUTLINE
• Introduction
• Activity 1: Evading Motion Detection
• Activity 2: Taking a tour of some sensors
• Activity 3: Making Microphone
• Activity 4: Exploring the Piezo Effect :Inside
story
• Activity 5: Measuring Piezoelectric or
Pyroelectric Response
• Design Project: Design a coin counter
• Product Idea: Smart Shopping Cart

3. INTRODUCTION
A smart transducer is an analog or digital transducer or actuator combined with
a processing unit and a communication interface

4. ACTIVITY 1: EVADING MOTION DETECTION
Trying to evade a motion detector
sensor
Procedure:
We tried evading the motion sensor by:
• Predicting it’s range
• we also tried to walk real slow

5. Activity 2: Taking a Tour of Some Sensors
OutputProcessorInputDevice
NumbersElectric circuitTemperatureThermometer
Sound and
movement
Electric circuitBatteriesClock
ColorsHeat transferHot waterCup

6. Activity 3: Making a Microphone
Procedure:
• This activity required making a table as well but with two
different kinds of PVDF
• one of the PVDF was rigid and the other was flexible
Conclusion: We found out that the flexible PVDF is more
sensitive

7. Activity 4: Exploring the piezo effect
Procedure: Recognize the structure of a polymer
Results: Piezoelectric effect is the ability of certain materials to
generate an electric charge in response to applied mechanical
stress.

8. Activity 5: Measuring Piezoelectric or Pyroelectric
Response
Procedure: Drop a metal ball on the PVDF and measure the voltage
Results:
Conclusion: The larger the ball the higher the voltage

9. FINAL PROJECT:
SMART SHOPPING CART
• Introduction and Rationale:
• Shopping cart That Brakes Automatically and Follows You Around At
Safe Distance
• you can go for shopping and the trolley will follow you at a safe
distance, without having to worry about your belongings as the
carriage will automatically stop behind you at a pedestrian crossing

10. FINAL PROJECT:
SMART SHOPPING CART
• Aim of the work (objectives)
• Design a save baby trolley that can detect obstacles and act
accordingly

11. SMART SHOPPING CART
HYPOTHESIS:
• Can the sensors provide more protection to the baby trolley?
• Will the break be fast enough to avoid crash?

12. SMART SHOPPING CART
METHODS AND MATERIALS
We use a sensor called:
Adaptive cruise control sensor
(ACC) is an intelligent form of cruise control that
slows down automatically to keep pace with the
object in front of you.

13. SMART SHOPPING CART
RESULTS
• The Results Of The project:-
• Makes shopping much more easier and fun
• Saves the trouble of pushing the cart around

14. SMART SHOPPING CART
RECOMMENDATIONS
• We recommend applying this product to all the shopping
malls and hyper markets as it saves too much effort and
time for the shoppers

15. CONCLUSIONS
A sensor is an object whose purpose is to detect events
or changes in its environment, and then provide a
corresponding output.

16. ACKNOWLEDGMENT
Many thanks to AL-Bairaq team from Center for Advanced
Materials (CAM), Qatar University for supporting us during
our journey with a AL-Bairaq.
Also, I would like to thank the sponsors UNESCO, Qatar
National Commission, Ras Gas, Maersk and Shell.