Done by Group : Alpha School Name : Umm Hakeem Independent Secondary School for Girls. Smart Sensors Module : Gives knowledge about smart sensors and the PVDF films through activities, experiments and projects which depend on smart sensors. the product Idea is : A Critical pressure monitoring device which works to sense the levels of pressure, if it got an imbalance in pressure . it will open the place for ventilation and give alarm

2. Outline
• Introduction
• Activity 1: Evading Motion Detection
• Activity 2: Taking a Tour of some sensors
• Activity 3: Making a Microphone
• Activity 4: Exploring the piezo effect
• Activity 5: Measuring piezoelectric or
pyroelectric Response
• Activity 6: Designing a coin counter
• Product Idea: Critical Pressure Monitoring Device

3. Introduction
Smart Sensors are sensitive elements that feel the
physical objects around us from the pressure and
heat and light, movement and direction and speed
and number to give us information and data can be
used in the right guidance and control and build an
information base simulates changes for a long
period of time.

4. Activity 1: Evading Motion Detection
- Procedure: We tried evading the motion sensor which reaches up to
18 feet and sense the area on a conical shape by different ways, we
used cardboard and plastic even cloth. we also tried to walk slowly.
-Results: It may seem impossible but all of them worked fine except for
the fabric.
-Conclusion: we knew that motion sensors can detect movement
but not in some special cases.

5. Activity 2: Taking a Tour of Some Sensors
Procedure: In this activity, three devices were placed in front of us
and we were asked to compare between them.

6. Result
• We compared between three things to know that
every device have processor , input and output .
device processor input output
Thermometer Electrice
circute
Temperature Numbers
Clock Electrice
circute
Batteries Sound and
movement
A cup Heat transfer Hot water Colors

7. Activity 3: Making a Microphone
• Procedure: This activity required making a table as well but with
two different kinds of PVDF (is a highly non-reactive and pure
thermoplastic fluoropolymer ), one of them was rigid and the
other was flexible

8. PVDF Rigid Flexible Rigid flexible
Flick More Less More Less
Scratch Less More Less More
Blow Less More Less More
Talk Less More Less More
• Results: After testing them out, we found out
that the flexible PVDF is more sensitive .

9. Activity 4: exploring the piezo effect
• Procedure: We recognized the structure of a polymer .

10. Activity 5: measuring piezoelectric or pyroelectric
response
We knew two words piezoelectricity and
pyroelectricity.

11. Design project: design a coin counter
• Procedure: at this activity we had to measure the three coins
before starting to do anything, after that we dropped the coins in a
different height for three times on the sponge
Results: turned out, the bigger the mass of the coin is the bigger in
the voltage gets

12. Mass V1 V2 V3 Average
voltage
m1
(8.4)
0.23 0.17 0.08 0.48/3= 0.16
m2
(5.4)
0.31 0.22 0.37 4.72/3= 1.57
m3
(1.6)
0.10 0.46 0.03 0.59/3=
0.196
Conclusion :Forming a coin counter by
knowing the mass and volt of each coin ,
get the unknown coin value .

13. A Critical pressure monitoring device
- At the present time the world got a great technological raise and the sensors
become as common use in every where .
-we interested in decreasing the risk of the explosion due to increasing of the
pressure at closed place like kitchen , boiler, airplane ,etc .. and the effect of the
out side pressure to the human and buildings .
- Most of the closed places like kitchens and factories suffering from increasing in
the pressure that destroy Eardrum and causing very bad explosion `,From this
reason, there is a new technology to provide the closed places with pressure
sensor and alarm system for more safety purpose .
- We are in the process of rehabilitation device works to control the pressure in the
indoor kitchen, such as the value of close to gas cylinders and factories and all-
prone areas to increase pressure, which leads to intense explosions and heavy
damage
- sensor will sense pressure and give alarm incase of dangers .
- In the future the closed place will be more safe and there will not have bad
accidents happen due to pressure change.
-The main purpose of doing these project keep the people living safe in there
houses , restaurant and working place .

14. A Critical pressure monitoring device
Hypothesis:
- What is correct location for the pressure sensor to be more
sensing the increasing in the pressure .
- The wire and the electrical Components should be fire
resistance , good and fast conductor .
-

15. A Critical pressure monitoring device
Methods and Materials
-Materials :
Pressure senor – electrical wire– pump to increase the
pressure inside the closed place – carton as closed
place – lamp –warning sound .
-Methods :
1- design the closed place
2- install pressure sensor in place that should be more
sensing the increasing in the pressure .
3- wiring between the sensor and the warning indicator
(the place for ventilation and alarm audio and light) .
4- testing for the pressure safety system.

16. A Critical pressure monitoring device
Results :)
1-when the outside pressure increases , the alarm will
function .
2- we used real very cheap items for saving million of people
and buildings .
3- The pressure monitoring device is very sensitive and accurate .
4- Where this device works to sense the levels of pressure, if it got
an imbalance in pressure . it will open the place for ventilation
and give alarm .

17. A Critical pressure monitoring device
Recommendations
• The product should be used at any places
where is the possibility of pressure change .
• We recommend the people should be careful
when they choose the perfect location for
installation the pressure device .
• The system should be tested and simulated
every 6 month .

18. Conclusions
(Overall of the whole module)
Finally , we learn more about sensors and how
to use to save and improve our life , Also we
can depend on sensors to improve our life
and nothing impossible if the human using
his mind .

19. Acknowledgment
Many thanks to my teachers, school and 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.