Brahmand NewsPrevious Article
Brahmand NewsNext Article
Headlines
  • Countdown for launch of ISRO's GSAT-6 begins:-The launch of Geo-synchronous Satellite Launch Vehicle (GSLV) D6 carrying GSAT-6 is scheduled at 1652 hours on Thursday from Satish Dhawan Space Centre at the spaceport of Sriharikota in Andhra Pradesh....
  • Israeli Navy chief visits Western Naval Command in Mumbai:-Commander-In-Chief of Israeli Navy Vice Admiral Ram Rutberg, who is on an official visit to India from August 24 to 27, visited Mumbai on Tuesday....
  • Defence Secy visits Naval facilities in Kerala:-Defence Secretary G Mohan Kumar held discussions with senior naval officials at the navy's two key centres in Kerala -- the Indian Naval Academy at Ezhimala andthe Southern Naval Command here -- during his two-day visit ending on Tuesday....
  • IAF holds discussion on technology and aerospace power:-Air Marshal Jagjeet Singh, Air Officer Command in Chief, Maintenance Command, Indian Air force on Tuesday said that air power brings about an asymmetric advantage on operations and undoubtedly will continue to play a key role in future operations as well....

Mini helicopter flies using laser power

Article
Line Spacing+- AFont Size+- Print This Article

Multi-mission UAV, recharging in between missions. Photo by LaserMotive

NEW DELHI (BNS): Lasers have been used to shoot down Unmanned Aerial Vehicles (UAV). They can also keep the drones up in the air, according to LaserMotive a Seattle-based company.

To demonstrate this, a 22-gram model helicopter was kept hovering for hours at a time on a few watts of laser power, at the recently held AUVSI Unmanned Systems Conference held in Denver, Colorado.

The system uses laser power beaming — the wireless transfer of energy over distances using laser light — to provide a virtually endless supply of power to the helicopter, the company said in its website.

Unmanned vehicles typically flown by military agencies are heavier and more rugged, and so need more power to stay in the air than they can get from the sun. According to LaserMotive, ground-based lasers can deliver the required power

The firm focused light from an array of semiconductor-diode near-infrared lasers down to a 7-centimetre beam, which automatically tracked a modified radio-controlled helicopter.

The aircraft carried photovoltaic cells optimised for the laser wavelength, which converted about half the laser power reaching them to generate a few watts of electricity – enough to power the rotors of the little copter, a New Scientist report said.

“The ability to fly an unmanned helicopter for this length of time using laser power beaming is an important technological advance for unmanned aerial vehicles,” said Tom Nugent, President of LaserMotive.

“Not only does this provide a way for UAVs to be powered in flight without the need for fuel, but it potentially can extend their abilities and enable new missions.”

The company has won a $900,000 NASA sponsored contract to develop power beaming systems that could help power 'Space Elevators' to lift objects thousands of kilometres in orbit. But with space elevators still at the concept stage, the company is looking at other areas to utilise the technology.

Tags:

Laser  UAV  
Line Spacing+- AFont Size+- Print Article

Other Related News

US offers to jointly make fighter jets with India

The US on Friday offered to produce fighter aircraft jointly with India to promote deeper military ties as it spoke about the Indian Air Force facing a "critical shortage" of front-line fighter jets.

Upcoming Defence Exhibitions

BRAHMOS Missile Systems

Headlines

Brahmand World Defence Update 2015

Image Gallery