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S.V.PAVAN KUMAR
(08E51A0255)
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Imagine a world without wires.
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The latest concept in the world of technology is the
introduction of witricity.
The universal wireless charging pads were created
where you need not plug in your cell phone or ipod for
charging.
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An era of a new science called nanotechnology
has evolved manipulating both atoms and
molecules and putting them into an
extraordinary degree of flexibility.
The meaning that nanotechnology holds for our
future depends on how NANOGENERATORS
solve the problem of traditional chargingtechniques!!!.
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NANO GENERATORS
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A huge inconvenience of having a device
loses power from lack of battery charging or
actual battery inoperability can be fixed by
several ways.
The most straightforward one being to
create longer lasting batteries that have less
of an environmental impacts.
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WORKING
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Wireless power supply technologies atpresent can be divided into three groups
according to their principle of operation
Electromagnetic induction
Radio reception
Resonance
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The first non-contact technology achieving
widespread adoption in many portable terminals is
electromagnetic induction.
ELECTRO MAGNETIC INDUCTION
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RADIO RECEPTION
Another technology very close to commercial use
makes use of the fact that energy can be
transmitted and received directly as radio waves
reception.
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RESONANCE
The third principle is electromagnetic
resonance..
This specific application uses only the electric or
magnetic field, instead of electromagnetic
waves, current, etc .,
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The resonance type is a proximity electromagnetic field
approach, using electric, magnetic and other fields built on
research and development.
In new areas such as near-field light, optical
communications, photonic crystals and meta materials.
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Power from Close-Range:
Electromagnetic induction can transmit up to several
hundred kW of power, a considerable amount, but
only over a maximum distance of 1cm or less.
The radio wave reception approach can handle
ranges of up to about 10m, but only for low power
levels of several mW to several hundred mW.
Resonance wireless power supply, on the other hand,
can transmit power over 3 or 4m at levels of up to
several kW
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Why is wireless power supply hot?
Because of
(1) market growth,
(2) developments in technology and
(3) delays in competing technologies .
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WHY FIRMS SWITCHING TO WIRELESS POWERSUPPLY..??
There has been little significant technical
development in the last few years, and no dramatic
increase in capacity is expected until fuel cells enter
mainstream use.
Even if the battery life per terminal remains the same,
the increase in the number of terminals each personcarries is leading to increased dissatisfaction with the
time needed to charge them all.
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THE NEXT CHALLENGE
Three objectives have to be achieved:
Eliminate the use of the AFM,
Make many nanowires generate electricity
simultaneously and continuously and
Excite the nanowires in an indirect wave, such asan ultrasonic wave.
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HURDLES LYING IN THE PATH OF NANO-TECHNOLOGY
The hurdles that lie ahead in the research
include learning how to grow perfectly uniformarrays of nanowires that all produce electricity
and how to extend their working life.
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THE FINAL WORD!!
Wang's wire certainly triggers a piezo-storm innano world !!!
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