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<p class="MsoNormal"><span lang="EN-US">The Buzz - Electric car and 52MHz<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Peter Ellis VK1PE has found a story that may have a hidden threat for 6 metres, in Japan and potentially elsewhere.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">From "What's new in Electronics" magazine for March/April 2013, comes this story.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Conventional battery-based electric vehicles are not popular with drivers because of drawbacks that mostly stem from the need to store large batteries on-board cars, so there are strong demands for alternative means of
powering electric cars.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">In a novel approach, Takashi Ohira at Toyohashi University of Technology and colleagues are developing an innovative method for powering EVs that drastically reduces the number of batteries. The approach exploits the
steel belt usually embedded in rubber tyres. The steel belt collects power excited from a pair of electrodes buried beneath the road surface. And, since the steel belt is electrically insulated by the rubber tread, the researchers used a displacement current
at high frequency to penetrate from underground to the steel belt.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The researchers constructed a 1/32 scale electric vehicle to prove their concept. The car moved successfully with a power penetration efficiency exceeding 75% at... 52MHz. This is the world's first demonstration of electric
power transfer via the car wheel to the vehicle.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">So, will the frequency scale, too? Up, to 1.664GHz; or, down, to 1.625MHz. Or, will it just stay on 6 metres?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">For National Radio News,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Peter Ellis VK1PE<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Fonte: WIA<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">What's new in Electronics <o:p></o:p></span></p>
<p class="MsoNormal">http://www.electroline.com.au/<o:p></o:p></p>
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