Russian scientists have managed to charge a mobile phone with a laser at a distance
A unique experiment on wireless energy transmission at a distance of 1.5 kilometers in the atmosphere took place on Friday evening, at 19.00 in a closed area of Rocket-space Corporation Energia in Korolev, Moscow region.
Similar experiments were previously conducted abroad. However, even the most advanced American installations could “throw” current is not more than 3-10 meters. The difficulty was that the passage of the energy beam greatly disturbed the atmosphere. Russian scientists have been able to overcome this issue, extending the distance between the laser unit and the target, which had charged up to 1.5 km.
The laser emitter was installed on the 6th floor of one of the buildings “Energy” at the height of 20 meters from the ground, the target, which was used a conventional mobile telephone, was lying in the room of another building at a height of 30 meters from the ground. The power of the transmitted energy was 5 Watts.
According to the engineer RKK “Energy” Vitaly Kapranov, who gave an interview to TV channel “Russia-24”, this was the first experiment conducted in Russia under difficult circumstances: a beam of energy passed just a few meters above the roofs of the buildings, accurately hitting the target phone. To charge the cell phone began almost from the first seconds, however, doing it a bit slower than from a conventional electric outlet.
In the future, according to Kapranov, so you can charge not only phones, but also electric cars. Distance in this case can be reduced to 50-100 meters and to increase capacity. More the main objective is remote recharging of drones. This will be achieved in about a year.
As reported earlier, the “MK” head of the scientific group of RSC Energia Ivan Matsak, transmission of electricity by means of an infrared laser beam will give the opportunity to make virtually non-stop flights of unmanned vehicles with electric motors. Now their batteries allow you to work in the sky from 15 to 40 minutes. But if time to fuel the copter invisible energy beam from the Ground, his flight, for example, to remote surveillance of any interest to you in the world, can last for days. The installation is created, it is a small container the size of a travel bag (it is the laser itself) with installed on it a special optical system for transmitting a narrow laser beam into the sky. On the aircraft to receive and convert laser radiation into electricity with special solar battery.
Another area where it can be used, this technology can be remote power supply of a small spacecraft with high demands on energy, but not having the possibility to carry large solar panels. By the way, in space the process of wireless charging “from the satellite to the satellite” will be much faster and more efficiently, because there is no atmosphere.
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