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Students electrify visitors with their innovations

S. Aishwarya

They are voluntarily carrying out experiments with scientific interest, says forum



LET THERE BE LIGHT: An exhibit being explained at St. Joseph's College in Tiruchi. — Photo: R. Ashok.

TIRUCHI : A voter's identity card with an embedded microchip may not be a new discovery. But a multi-purpose id for voting and bank transactions certainly is.

But the card will not serve as a magic tool without the combination of software and hardware.

To ensure its validity the card needs constant updating of digital photo, signature, address and fingerprint information, says the final-year student team of M. Sc. Electronics.

More such digital innovations are on display at the `Electronics exhibition,' organised by the Department of Electronics, St. Joseph's College here.

On Wednesday, the first day of the three-day exhibition, the department displayed 33 exhibits, involving over 100 students.

Complementing the digital identity card, Bhuvana and Priya from the final-year M. Sc. have designed fingerprint sensor that displays the warning message in case of any fingerprint mismatch.

First-year undergraduate students scored over their seniors with the number of electronic models and participation.

While a team demonstrated the working of FM Music transmitter with a 9V battery, its counterpart came out with a high-range light-audio sensor.

Improvised versions of several existing gadgets were put on view.

M. Radhakrishnan and his three-member team promised absolute energy saving with the installation of solar-driven streetlights, which turn light on at dusk and off at dawn.

J. Sabarish Kumar exhibited his invention - a `mobile detector' that could trace the locality of the caller or receiver.

At Rs. 500, this cost-effective detector could extend its scope by appending more microprocessors with the coupled circuit board.

In parallel with the pre-paid technology existing in cell phones payments, Arvind of I B.Sc. came up with pre-paid card system for electricity bill expenses.

His technology provides room for carryovers in subsequent cards and indication for low balances.

The Electronics Association has been conducting such exhibitions for over four years and the students voluntarily carry out experiments with scientific interest, says the association president, G. B. Ram Prakash.

"We have invited school students from rural areas to learn the practical applications of the science theories featuring in their syllabus."

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