Phone acoustic power

ponedjeljak, 25.10.2010.

Phone acoustic power

Abandon the development of new battery technology allows the United States by the sound-powered phone

According to foreign media reports, has a self-powered imagine how nice the phone, it will never have to charge and maintain the normal operation of mobile phones. This is not fantasy, but Texas A & M University professor Kim Tai Xika a recent invention. This invention allows mobile phone users when they speak sound waves into energy, to provide mobile phone use, so that the common mobile phone without electricity.

Cajun working on nanotechnology, through the use of so-called piezoelectric materials, he developed a self-powered device, which does not require battery power and the like can be replaced. In particular, card payments and partners the University of Houston have found material in less than a voltage of 21 nanometers thick can be one hundred percent under the micro size of the converted energy. And, when this material larger than the specific size or less, their energy conversion rate will be greatly reduced. His findings published in the fall of the American Physical Society scientific journal "Physical Review B" on. This discovery will develop low-power far-reaching electronic products, which can develop from my supply of mobile phones, laptops, personal communications devices and a large number of other computer-related electronic products.

Many high-tech products are nano-scale components. Although the invention of card payment is small, but significant influence. His findings will enable small and convenient to extend the service life of wireless products. Because, MP3 and mobile phone, the battery life is a major problem, if you want to expand their capabilities, then you need a more powerful battery to support. And convenient self-powered device will resolve this problem, which is several federal agencies interested in the reasons for such devices. Indeed, the U.S. Defense Advanced Research Projects Agency (DARPA) has been studying how to field soldiers received their conversation of energy to power their portable equipment. In addition, sensors for detecting explosives, will greatly benefit from the self-powered technology, can reduce the testing and battery replacement.

Cajun explained that this technology is the key to piezoelectric. Is a kind of piezoelectric crystal is very interesting, when you squeeze or stretch it, it will produce different ends of the charge. This effect is called piezoelectric effect. The crystal can produce is called the piezoelectric effect piezoelectric crystal. Crystal (±-quartz) is a well-known piezoelectric crystals. Piezoelectric is not a new concept, in fact, 80 years in the 19th century French scientist was found. The first piezoelectric sonar used during World War device. Now, equipped with a piezoelectric crystal element of the instrument so that technicians steam engine, internal combustion engines and all kinds of pressure changes in the chemical equipment a reality. Can be measured using a piezoelectric crystal or even the pressure of fluids in pipes, guns, cannon fired artillery shells at the pressure when the bomb exploded, and the instantaneous pressure. In addition, the piezoelectric crystal is also widely used in the microphone and the quartz watch. Even the car ignition device has a piezoelectric crystal. Click on the button will cause the ignition to strike on piezoelectric crystals, which generate enough voltage to cause sparks and ignite the gasoline.

Major applications, a number of European dance floors of nightclubs and dance halls was built by the piezoelectric crystal can absorb and convert energy to power the pace in order to light up night clubs in the bulb. According to reports, a Hong Kong Coliseum is using this technology to the athletes energy into electricity, in order to make a light and play music. Card King said the application of piezoelectric crystal will be a higher level, especially when the emergence of nano-scale piezoelectric crystal after the application of this technology will be more extensive.

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25.10.2010. u 08:32 • 1 Komentara • Print • #

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ponedjeljak, 25.10.2010.

Phone acoustic power

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