Imagine you are in a room, in it can not find one even if the milling cable. TV, stereo system, DVD, or Bluray-Player, Hifi-headset, everything works without a battery or power cord. In fact, the batteries of mobile devices such as laptops, mobile phones or digital cameras loaded automatically, so you enter the house, of course without having to plug the cable.
The basic principle of technology that would be a vision of life was designed by researchers from the Massachusetts Institute of Technology (MIT). This project started in 2006 and was called by the name "WiTricity". This technology later developed by Intel since 2007. Their targets, the technology is immediately realized in the next few years. Intel calls this technology as WREL (Wireless Resonant Energy Link), transmitting energy wirelessly through resonance.
Intel itself has demonstrated the realization of these technologies since last year. In the event the Intel Developer Forum (IDF), Intel Chief Technology Officer (CTO), Justin Rattner, showed a 60-watt light that can glow in the distance of one meter without using cable connections. Since that time, Intel also showed that WREL can also operate a netbook without sounding speakers without batteries or wires by changing voice signals into electrical signals.
The working principle: capture electricity from the air
For people who saw the first demonstration of WREL technology, the same reaction as when the introduction of the WLAN. You must still remember how it feels first time can be connected to the Internet without wires. Initially, many people are surprised that the Internet can be accessed wirelessly. People were moved to disconnect manually and was surprised that everything is still running. Furthermore, these technologies for granted.
The basic principle of this wireless power transfer technology with this WREL ass0ciate with the phenomenon of resonance. A WREL receiver can capture the energy of a de with the help of a magnetic field coil, when emitted de with the same frequency from a transmitter (through the coil). In order for optimal impedance, used rolls of wire on both sides. Here, the coil wire also functions as transmission gear bikes. When climbing, gear transmission can be reduced in order to use energy more efficiently. Conversely, while declining to use a higher transmission gear. The receiver also sets himself a large current and voltage required by its size. So, no need to bother with the adapter. In addition, the transmitter emits energy WREL only as needed by the receiver only.
Other wireless power transmitting technique has actually been used, such as the electronic toothbrush or a new smartphone from Palm Pre with charge station "Touchstone" him. Here, the device must be as close to or touching the transmitter. Conversely, WREL can work with long distances. In the draft that was demonstrated by Intel (see picture above), the receiver unit can be used in a distance of 20 cm to one meter. This zone is referred to by researchers at Intel as a magical area. WREL receiver can move freely in this area without power to decide .Focus research: higher efficiency, wider Magical Areas
However, before we throw all the power cord and adapter, still much to be done by the researchers. In the next few years, they still have to explain the details. Intel Labs research team in Seattle was more focused on optimizing the efficiency, form factor, and the level of radiation safety.
In experiments conducted by Intel, the level had reached 75 percent efficiency. This figure is very large indeed. However, from the side of the world energy crisis, the figures were still too small. Head of research, Intel, Rattner, explaining that the energy wasted is still a big if not done charging the battery. "The level of high efficiency becomes a problem on WREL, almost impossible to be realized."
Levels of efficiency also depends on the alignment of coil and coil wire. When the receiver rotated slightly, the level of efficiency is drastically decreased. This is what the researchers wanted to avoid. They replace the cable with the sensor coil and a microchip that can adjust the resonance in a magnetic field better.
"Electricity could have been from a cupboard," said Justin Rattner. "So, you no longer need to plug the Espresso machine." WREL transmitter can also be installed in the wall of the house to supply electricity to all the tricks of electronic devices that are in magical zone. Desk can also be useful to supply and charge the battery all the devices in the vicinity.
Radiation safety is also yet to be questioned. Does this technology is not harmful if a large energy emitted through the air? The principle was not the case because WREL uses magnetic waves are not harmful to human body.
Indeed, a strong magnetic field always brings netis electromagnetic radiation. Therefore, researchers from Intel tried to use a frequency that produces a net magnetic field is strong with minimal electromagnetic loads. We've launched the first product to market, this WREL technology should really safe to humans.
Future: no more cables, adapters, and plug
Once the technology was mature and safe WREL, its application will expand rapidly, eg for medical applications, such as to operate the device manager to implement the heartbeat or artificial organs.
Wirelessly transmitting power will be an important factor, not only antarperangkat, but also in the sophisticated devices itself. Imagine computers, with processors that are no longer supplied with electricity through hundreds of contacts, but without the cord through WREL.
The same principle to other PC components. After this, maybe many are wondering how much longer we'll get to the era of wireless electricity, is like seeing the Internet through WLAN today.
Posts
0 komentar:
Post a Comment