Exploring the Phenomena of Sound and Electromagnetic Induction with ExpEYES An Open Source Portable Science Lab www.expeyes.in www.expeyes.in Praveen Patil Subhash Desai INDIA
THEORY Experiment .. and it goes in circles. Our Science Education
Why Experiments are ignored in our Science Education ? ● Exam Oriented Evaluation System ? ● Lack of interest ? ● Lack of Equipment ? For the last reason ExpEYES is an answer. Works on any computer with USB port. Coding in Python or C.
A python powered Open Source Portable Science Lab A tool for learning by exploring. Supports Science & Engineering experiments from High School to Post Graduate level. A test equipment for electronics hobbyists. All with Open Software & Hardware What is expEYES ?
A low cost device that can generate/measure voltages as a function of time and generate graphs. It works with any Gnu/Linux PC,Laptop, many android tablets and phones. The most affordable portable science lab
ExpEYES on Android Devices A Lab in your pocket
Features: ● 12 bit Analog Input/Output ● Digital I/O ● Time interval measurements ● Waveform Generation ● USB Powered ● GUI for 50 experiments ● Python Programmable ● Works as a Test Equipment ● 8.6 x 5.8 x 1.5 cm 3 , 60 gm. ● Royalty-free
● Experimenter has the freedom to use the system at various levels of sofistication ● LEVEL I ● GUI Programs ● LEVEL II ● Writing programs using PYTHON Library ● LEVEL III ● Micro-controller programming and making stand-alone syatems – Sensor ExpEYES Computer USB Controllers
Design of expEYES Junior Real-time measurement features of Micro-controller + Computational and Graphics capability of Python . import expeyes.eyesj p = expeyes.eyesj.open() from pylab import * t,v = p.capture(1, 200, 100) plot(t,v) show()
What is expEYES for Students : An affordable tool for doing experiments, anytime anywhere. Freedom from the lab timings. Teachers : A tool for doing demos, experiments and to develop new experiments. Engineers : An open system that combines basic physics, electronics, micro-controller programming, computer interfacing, GUI programming and scientific computation. Hobbyist : A nice tool to kill more time with less money.
2011 : ExpEYES, USB Powered, Higher resolution 2012 : expEYES Junior More compact, cheaper
GUI programs available for around 50 experiments Example 1: Four channel CRO, in audio range
Interference of Sound MIC Buzzers Sound and Waves with ExpEYES
Frequency of Sound Sound and Waves with ExpEYES
Frequency Response of Pizzo Buzzer Sound and Waves with ExpEYES
Velocity of Sound in air Sound and Waves with ExpEYES
Ultrasound Sound and Waves with ExpEYES
To study nature of oscillations of a pendulum. Since angle encoders are expensive, we have used a DC motor Pendulum, Nature of Oscillation
Electromagnetic Induction Exploring Electromagnetic Induction with ExpEYES
AC Generator Exploring Electromagnetic Induction with ExpEYES
Singing Magnet T he force experinced by a current carrying cunducter placed in a magnetic field is demonstrated by placing a permanent magnet inside a solenoid and applying an AC signal to it. Exploring Electromagnetic Induction with ExpEYES
And many more ...
Reducing total cost: cheaper computers. Tested on Raspberry Pi and Aakash2 and many Android Tablets and Phones
More than 1500 units are in circulation. ● Included in the syllabus in some Universities. ● Approached CIET NCERT for adding this in ICT curriculum. ● Trained around 300 physics teachers. ● Conducted around 35 awareness programs at different places.(Including Malayshia, Taiwan,Cambodia, Japan, France.....) Every year IUAC conducts two “Six days training programs on PHOENIX” Project Status
Georges Khaznadar, Science teacher & Debian developer. Volunteers for PHOENIX Project Phoenix at Lycée Jean Bart, France
Make high quality laboratory equipment available to every science student, by making it affordable. Our Goal
Hardware Availibility
Many of the Control/Sensor elements are made from components used in consumer electronics. Interface + Standard Accessory Set + LiveCD
http://expeyes.in http://expeyes.wordpress.com For details please visit....
Thank you
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