Disney Magic: Room Powered by Wireless Electricity
The Walt Disney Company has built a room that it says can wirelessly power and charge any devices inside it.
Wireless charging usually only works when a device is touching a power source. But researchers say they have found a way to provide wireless power and charging capability to large areas.
A scientific team from Disney Research recently demonstrated the technology. Alanson Sample is the lead researcher at Disney Research. He explained the goal of the project in a video.
"What we really want is a three-dimensional charging experience where you walk into your living room or office and your cellphone is charged simply by walking in."
Sample said the idea of wireless power goes way back to the turn of the 1900s. This is when famous scientific inventor Nikola Tesla proposed a method to send wireless power all over the world. His plan, which involved a giant tower built in New York, was not a success.
But the Disney team said it was inspired by Telsa's early efforts to develop a new system for wireless electricity. The process uses magnetic fields to send power to specially designed receivers.
Researchers built a 54-cubic-meter room in which the walls, floor and ceiling were covered with metal panels. They placed a long copper pipe in the middle of the room.
Electrical currents travel up and down this pole about 1.3 million times per second. These currents also move through the ceiling, walls and floor, before flowing again up the pole.
Small devices inside the pole set the level of electromagnetic waves. These waves continuously move around the room to send power to receiving devices.
The Disney researchers said repeated experiments led to successful wireless power transfers to many devices running at the same time.
One of the dangers of electric fields is that they can be harmful to humans. But associate research scientist Matt Chabalko said the level of power being generated inside the room is not dangerous.
"Our simulations show that we can transmit 1.9 kilowatts of power while meeting federal safety guidelines. This means it's completely safe for people to occupy this space for any amount of time."
The experiments also showed that furniture inside the room was not damaged and did not block the wireless energy.
Researchers say they believe the technology can be made to fit into small boxes or be used in large buildings.
One of Disney's likely uses for wireless power will be to create areas at its parks where visitors can charge their devices.
I'm Bryan Lynn.
You can also set up three-dimensional textures, using shapes instead of a flat image.
2.go back to 返回；追溯到
They were determined to go back to the land of their forefathers.
3.copper pipe 铜管
If it is not timely found, the copper pipe will fracture and the water will be overfall.
4.power source 电源
The power source is the weak link in today's portable electronics.
1.These waves continuously move around the room to send power to receiving devices.
move around 绕来绕去
He moved around the country working in orange groves.
He stood up and began to move around the room.
2.Researchers built a 54-cubic-meter room in which the walls, floor and ceiling were covered with metal panels.
be covered with 被...覆盖
He bought a hot dog and had it covered with all the fixings.
My face was covered with bruises and I had a broken rib.
无线充电只有在设备接触到电源时方可进行 。不过研究人员表示，发现了一种可大范围地提供无线电能和充电功能的途径 。
近日，迪斯尼研究所的科研团队展示了这项技术 。阿兰森·桑普尔（Alanson Sample）是迪斯尼研究公司的首席研究员 。他通过视频解释了该研究的目的 。
桑普尔表示，无线电能的想法可以追溯到二十世纪之交 。当时著名的科学发明家尼古拉·特斯拉（Nikola Tesla）提出在全球发送无线电能的想法 。他想在纽约建造一座巨大的发射塔，但没有成功 。
迪士尼团队表示，特斯拉早期开发无线电能新系统的举措让他们深受启发 。该原理是通过磁场向特殊设计的接收器发送功率 。
研究人员建造了一间54立方米的试验房 。墙壁，地板和天花板上都覆盖着金属板 。屋子的中间放置着一根长铜管 。
以铜管为介质，电流以每秒约130万次的速度传输 。电流还通过天花板，墙壁和地板移动，然后再回升至铜管顶端 。
铜管内的微型设备设置了电磁波的等级 。电磁波持续在房间周围移动，将功率传输至接收设备 。
电场虽然会危害人体 。不过，助理研究员马特·查巴尔科（Matt Chabalko）解释称，房间内产生的电能等级危害系数较低 。
“模拟试验显示，这一技术可传输1.9千瓦电能，这一标准符合联邦安全准则 。也就是说，在任意时间内使用该房间都是十分安全的 。”