Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.physics > #508884 > unrolled thread

Researchers boost wireless power transfer with magnetic field enhancement

Back to article view | Back to sci.physics

Contents

  Researchers boost wireless power transfer with magnetic field enhancement Sam Wormley <swormley1@gmail.com> - 2015-07-23 08:16 -0600
    Re: Researchers boost wireless power transfer with magnetic field enhancement jimp@specsol.spam.sux.com - 2015-07-23 17:32 +0000

#508884 — Researchers boost wireless power transfer with magnetic field enhancement

Researchers boost wireless power transfer with magnetic field enhancement
> http://phys.org/news/2015-07-boost-wireless-power-magnetic-field.html

> Research from North Carolina State University and Carnegie Mellon
> University shows that passing wireless power transfer through a
> magnetic resonance field enhancer (MRFE) – which can be as simple as
> a copper loop – can boost the transfer efficiency by at least 100
> percent as compared to transferring through air alone. MRFE use could
> potentially boost transfer efficiency by as much as 5,000 percent in
> some systems, experts say.

> Wireless power transfer works by having a transmitter coil generate a
> magnetic field; a receiver coil then draws energy from that magnetic
> field. One of the major roadblocks for development of marketable
> wireless power transfer technologies is achieving high efficiency.

> "Our experimental results show double the efficiency using the MRFE
> in comparison to air alone," says David Ricketts, an associate
> professor of electrical and computer engineering at NC State and
> corresponding author of a paper describing the work.

> Enhancing wireless power efficiency has been a major goal of many
> research groups. One of the leading candidates proposed for enhancing
> efficiency has been a technology called metamaterials. "We performed
> a comprehensive analysis using computer models of wireless power
> systems and found that MRFE could ultimately be five times more
> efficient than use of metamaterials and 50 times more efficient than
> transmitting through air alone," Ricketts says.


-- 

sci.physics is an unmoderated newsgroup dedicated
to the discussion of physics, news from the physics
community, and physics-related social issues.

[toc] | [next] | [standalone]

#508920

Sam Wormley <swormley1@gmail.com> wrote:
> Researchers boost wireless power transfer with magnetic field enhancement
>> http://phys.org/news/2015-07-boost-wireless-power-magnetic-field.html
> 
>> Research from North Carolina State University and Carnegie Mellon
>> University shows that passing wireless power transfer through a
>> magnetic resonance field enhancer (MRFE) ? which can be as simple as
>> a copper loop ? can boost the transfer efficiency by at least 100
>> percent as compared to transferring through air alone. MRFE use could
>> potentially boost transfer efficiency by as much as 5,000 percent in
>> some systems, experts say.

Geniuses have invented the tuned transformer.


-- 
Jim Pennino

[toc] | [prev] | [standalone]

Back to top | Article view | sci.physics

csiph-web