Done by Thomas Edison group at Omar Bin Al-Khattab school. Under supervision from AL-Bairaq

1. Thomas Edison
Mohammed Al-kaabiObay Hassan
Saud AL-bakerHassan ALkuwari
H.M

2. • 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:
The inside story
• Activity 5: Measuring the Piezoelectric &
Pyroelectric Response
• Design Project Designing A Coin Counter
• Product Idea: Smart Cycle
H

3. Sensor is a device that detects to the type of input
from the physical environment. Specific inputs can be
light, heat, motion, humidity, pressure, or any one of a
large number of other environmental phenomena.
H

4. A-trying to evade a motion detector sensor procedure :
we tried evading the motion sensor by :
1- walking very slow
walking very fast-2
*Results:
1- The sensor beeps, it detected us
2- range reach up to 30 feet
3- range area 80 degree in conical shape
O

5. B- Adding a block in front of the sensor:
1- We added a non-conductor block to see the results
We walked through the area and it didn’t beep-2
*Results:
1- The sensor didn’t beep, it didn’t detect us
2- Range was up to 50 feet
3- It was a successful experiment
O

6. ResponseStimulussensor
SoundOpening the
card
Music Card
SoundSoundTalking ben
SoundSound and
touch
Sound birds
Conclusion:
after exploring many sensors, we realized that each smart
sensor has a different stimulus and different response
depending on its purpose.
M

7. PVDF Rigid flexible
Flick more more
Scratch more more
Blow less more
Talk less more
We made a microphone to know how the PVDF
Work. We used flexible PVDF and rigid PVDF
H

8. 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
M

9. Average
Voltage
v3V2V1Weight
-0.426-0.31-0.45-0.52Large
6.6-0.20-0.09-0.27medium
0.198-0.28-0.17-0.13small
Fixed the height (10 cm)and different height:
Average
Voltage
V3V2v1Height
-0.970.42-0.31-0.5210cm
-0.416-0.42-0.45-0.385cm
Fixed mass (big ball) and different height:
Part A: we used different sizes of
balls to test the piezoelectricity of
the PVDF.
Part B: we used a hair dryer to
test the pyro electricity of the
PVDF
H.M

10. • In this activity we dropped three coins over the
PVDF from the same height for three times to
get the average voltage. We weighted the coins.
(V)
Average
V3V2V1Mass of coin (g)
-0.061-0.056-0.071-0.0562
-0.139-0.164-0.115-0.1395
-0.359-0.315-0.335-0.4278

11. This idea will be about a bicycle that charges your phone automatically
without a cable
How will it work ?
It will work when you start using the bicycle
how it will charge ?
It will charge when you start driving your own bicycle
and then the PVDF will start hitting the bicycle tire
Then the PVDF will turn from pressure to electricity
that charges the phone
Smartcycle

12. This product is special because it is useful for the athletes people
That want’s to play , listen and charge they're phones

13. The Results:
This product that we invented is very useful for the
people that want’s to listen and drive the bicycle in the
same time

14. This is the
Smartcycle
It installs PVDF, and
makes the iron pigment
with PVDF

15. This battery
for Mobile Charging
The black is PVDF, and
the white It drives the
PVDF

16. Project uses :
-to be able to charge the phone via PVDF.
-this helps people who are willing to charge
without running out of battery .
-this project helps a lot of people from my
point of view

17. We are very pleased and happy to join Al-bairaq.
We thank everyone who gave us the opportunity
and the knowledge to work in this project. We
gained a lot of information and scientific skills
about smart devices. We are so proud to be in
Al-bairaq , we learned how to work in groups and
learned many skills like how to search ,present
and express our selves in a confident way.

18. To whomever will participate in al bairaq, we
recommend you take advantage of the points below.
- do more practice
- do more laboratory work
- attend as many workshops as you can
- browse the internet to get some ideas
- get some people who are talented in such a field and let
them help
- always consult your supervisor at school

19. Thank all people, teachers, friends, and your school that
supported you during your journey in Al-bairaq project.
Also don’t forget to thank Al-Bairaq team and the sponsors
who gave you the opportunity to participate in Al-Bairaq
project, create and innovate.