AL-BAIRAQI AM DISCOVERING MATERIALS

SMART SENSORSMARS

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

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

INTRODUCTIONA smart transducer is an analog or digital transducer or actuator combined with a processing unit and a communication interface

ACTIVITY 1: EVADING MOTION DETECTIONTrying to evade a motion detector sensorProcedure:We tried evading the motion sensor by:• Predicting it’s range• we also tried to walk real slow

Activity 2: Taking a Tour of Some Sensors Output Processor Input Device

Numbers Electric circuit Temperature Thermometer

Sound and movement

Electric circuit Batteries Clock

Colors Heat transfer Hot water Cup

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

Activity 4: Exploring the piezo effectProcedure: 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.

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

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

FINAL PROJECT:SMART SHOPPING CART

• Aim of the work (objectives)• Design a save baby trolley that can detect obstacles and

act accordingly

SMART SHOPPING CARTHYPOTHESIS:

• Can the sensors provide more protection to the baby trolley?

• Will the break be fast enough to avoid crash?

SMART SHOPPING CARTMETHODS 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.

SMART SHOPPING CARTRESULTS

• The Results Of The project:- • Makes shopping much more easier and fun• Saves the trouble of pushing the cart

around

SMART SHOPPING CARTRECOMMENDATIONS

• We recommend applying this product to all the shopping malls and hyper markets as it saves too much effort and time for the shoppers

CONCLUSIONS

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

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.