Untethered Drone Gets Wireless Power

Wireless power is the only thing keeping this drone up in the air, thanks to the efforts of Imperial College boffins.


(Imperial College drone, flying without a battery or tether)

The researchers also built a separate transmitting platform that uses a circuit board, power source and copper coil of its own to produce a magnetic field. When placed near that platform, the drone's coil acts as a receiving antenna for that magnetic field, inducing an alternating electrical current. The quadcopter's rejigged electronics then convert that alternating current to direct current, which is used to power its flight.

Known as inductive coupling, the technique has been around since the time of Nicola Tesla. According to Imperial College, however, this is the first time that it has been used to power a flying vehicle. While it currently only works if the drone is within 10 cm (3.9 in) of the transmitter, it is hoped that the range can be greatly increased.

The first use of radiant power, or the wireless transmission of power, was arranged by the matchless inventor Nikola Tesla. The largest Tesla Coil ever built (the 'Magnifying Transmitter') could generate up to 300,000 watts of power, and produce a bolt of lightning 130 feet long. Tesla actually managed to successfully transmit about 30 to 50 thousand watts of power without wires using the coil.

However, it was left to Robert Heinlein writing in his classic 1942 novella Waldo to really set imagination free and imagine what you could do if you didn't need to carry some sort of stored power in your flying vehicle.

"...We'll use my 'broomstick'".

Grimes let his eyes run over his friend's fusiformed little speedster. Its body was as nearly invisible as the plastic industry could achieve. A surface layer, two molecules thick, gave it a refractive index sensibly identical with that of air. When perfectly clean it was very difficult to see.

At the moment it had picked up enough casual dust and water vapour to be faintly seen - a ghost of a soap bubble of a ship.

Running down the middle, clearly visible through the walls, was the only metal part of the ship - the shaft, or, more properly, the axis core, and the spreading sheaf of deKalb receptors at its terminus. The appearance was enough like a giant witch's broom to justify the nickname. Since the saddles, of transparent plastic, were mounted tandem oven the shaft so that the metal rod passed between the legs of the pilot and passengers, the nickname was doubly apt.
(Read more about Heinlein's broomstick speeder)

Via NewAtlas.

Scroll down for more stories in the same category. (Story submitted 10/15/2016)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Engineering ")

Stick-On Tape Speakers, As Predicted By Bruce Sterling
Flexible tape speakers, someday.

Has Climate Change Already Been Solved By Aliens?
'I had explained," said Nessus, "that our civilisation was dying in its own waste heat.' - Larry Niven, 1970.

Skin Electronics 3D Printed
'June's body is a tracery of lambent lines, like some arcane capillary circuitry...' - Paul Di Filippo, 1985

Super-Resolution Microscopy Provides '4D' Views
View the magnified interior of living cells.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Sleeep PRO Earplug For Maximum Rest
'Merton... placed the electrodes of the sleep-inducer on his forehead.'

Inspired By Japan, Nap Pods For Hajj
It's always a good time for a nap.

Amphibio 3D Printed Gill Shirt
'... we can descend and live down there at one of those year-round aquatic resorts.'

How Do You Put An Asteroid Into Earth Orbit? Carefully!
'...she would have to be coaxed by another series of pats into a circular orbit.'

PD Aerospace Space Plane By 2023
'The sleek, tapered space shuttle lay immobile upon the private landing field...'

Foldimate Folds Your Clothes Perfectly
Look ma, my room is clean! I can hear you now.

Robots Help People Get Dressed, As Predicted In 1931
Yes, people of the future, robots will dress you.

International Space Station Leak Plugged - With Finger
'These tag-alongs search out stray leaks.'

Robot Snake Flies, Fights Fires
Just a prototype, but still amazing.

IPAL Chinese Robot Babysitter
'But Nanny is different...'

ZKZM-500 LASER Assault Rifle
'The Iranian reached back into the locker and got a pair of laserifles.'

LA Subway Scanner, As Seen In 'Total Recall'
'I'm afraid to tell you this Mr. Quaid, but you have suffered a schizoed embolism...'

Sion Electric Car Covered With Solar Panels
'It drew its power from six square yards of sunpower screens on its low curved roof.'

PAL-V Liberty Flying Helicopter Car
'...lifted themselves to skimming flight upon whirling helicopters."

Space Drones - UK's Effective Space To Launch Rocket Tugs
'Twenty rocket tugs towed it from its Earth hangar out into space.'

DIY Autonomous Robot Detects Trash
'The search-bug detached itself and rolled forward.'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.