Tech

May 10, 2012

Army scientists explore wireless power transfer

Tags:
by Bindu Nair
Army News

Army Science and Technology has demonstrated wireless power transfer over 4-5 inches from helmet to vest.

The American soldier is equipped with more capabilities than ever before. These capabilities come in the form of new and more powerful devices that translate to a need for more power.

Currently, power is supplied to the dismounted Soldier through a collection of batteries, many of them rechargeable. A focus of Army Science and Technology is to figure out how to power the soldier, and to enable all of his/her new capabilities, without increasing (and ideally decreasing) his/her physical load.

In order to accomplish this imperative, the U.S. Army is exploring a variety of different technologies and concepts. One exciting technology that opens up different concepts of powering the soldier is the wireless transfer of power. The U.S. Army is allocating $5-$6 million to advance these technologies.

Wireless power could eliminate the need for bulky cables, especially between the Soldier’s helmet and vest (where centralized power sources might reside). Wireless power also allows for the recharging of Soldier gear whenever the Soldier enters a “recharging zone,” to include a vehicle, certain areas within a forward operating base, etc.

The U.S. Army funds the Institute for Soldier Nanotechnology,or ISN, at the Massachusetts Institute of Technology, known as MIT, in Cambridge, Mass. One of the many discoveries at the ISN is the invention and development of strongly coupled magnetic resonators that can transfer electrical power over (relatively) large distances.

Scientists and engineers at the U.S. Army’s Natick Soldier Research Development and Engineering Center, or NSRDEC, in Natick, Mass., have picked up this concept and worked with the company founded by ISN technology developers, as well as its competitors, to design systems that can wirelessly transfer power between the soldier helmet and the soldier vest.

Current capabilities allow for using a soldier battery (Li-145) on the vest or torso to transmit ~5W of power to a helmet receiver at about 50 percent efficiency. Current programs are in place to increase that efficiency. As might be expected, the shorter the distance required for power transfer, the more efficient the transfer process.

The U.S. Army is also leveraging work performed by the Defense Advanced Research Projects Agency. One effort of note explores the simultaneous wireless recharging of multiple items. The U.S. Army’s Tank and Automotive Research Development and Engineering Center, known as TARDEC, in Warren, Mich., and Communications Electronics Research Development and Engineering Center, or CERDEC, in Aberdeen, Md., are both expanding on this (and alternative) technologies to increase the efficiency of power transfer over longer distances (50 feet) so that soldier recharging from vehicles and recharging from areas within a forward operating base can become realities.

The concept is to develop a future interoperable system so that organic soldier equipment recharging can reduce both the cognitive and physical load on the dismounted soldier.

 




All of this week's top headlines to your email every Friday.


 
 

 

Headlines September 3, 2015

News Carter To China: US ‘Will Fly, Sail, Operate Wherever Law Allows’ Defense Secretary Ash Carter, in a speech billed as all about a new personnel approach for the Pentagon, laid out a clear line in the sand of the temporary islands the Chinese have been building. http://breakingdefense.com/2015/09/carter-to-china-us-will-fly-sail-operate-wherever-law-allows/ LRS-B details emerge: Major t...
 
 

News Briefs September 3, 2015

Soldier injured after parachute failed to deploy A soldier was injured during a U.S. Army Special Operations parachute training exercise in western Montana. Army officials at Fort Bragg, N.C., say 16 soldiers were conducting a free-fall parachute jump from two Blackhawk helicopters near Hamilton Aug. 31 when one soldier had an equipment malfunction and was...
 
 

Boeing, Jet2.com finalize order for 27 Next Generation 737-800s

Boeing and UK Leisure Airline Jet2.com have finalized an order for 27 Next Generation 737-800s, valued at approximately $2.6 billion at current list prices. Jet2.com currently operates an all-Boeing fleet of nearly 60 aircraft; however, this is the organization’s first direct Boeing order.† The aircraft will be used to take the company’s package holiday and...
 

 
boeing-emirates

Boeing, Emirates celebrate airline’s 150th 777 delivery

Boeing and Emirates Airline Sept. 3 celebrated the simultaneous delivery of three 777s — two 777-300ERs and one 777 Freighter — marking the entry of the 150th 777 into Emirates’ fleet. The delivery marks the first tim...
 
 

U.S. Air Force selects Chromalloy for F108 gas turbine engine module repairs

Chromalloy announced Sept. 2 that it has been selected by the U.S. Air Force to provide repairs on low pressure turbine modules for the F108 aircraft engine fleet, in a contract valued at up to $74 million. The one-year agreement was contracted by the Tinker Air Force Base in Oklahoma and includes four one-year options...
 
 
raytheon-colorado

Raytheon expanding in Colorado Springs

Raytheon will speed up growth of its Colorado Springs presence after signing a $700 million multi-year indefinite-delivery/indefinite-quantity contract to support operations at NORAD’s Cheyenne Mountain Complex. Under the...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>