electromagnetic harvesting device by dennis siegel electromagnetic harvesting device by dennis siegel
jan 14, 2013

electromagnetic harvesting device by dennis siegel

‘electromagnetic harvesting device’ by dennis siegeldetecting electromagnetic fields with higher frequencies

 

 

the omnipresence of electromagnetic fields is implied just by simple current flow. we are surrounded by electric charges which are produced for information transfer or as a byproduct. being capacitive, these fields can be harvested with coils and high frequency diodes.

 

in response, bremen-based designer dennis siegel built special devices that are able to tap into several electromagnetic fields to exploit them, where the energy is stored in typical batteries. users can then retain the charges from the power supply of a coffee machine, a cell phone or the catenary of a train by holding the harvester directly into the electromagnetic field whose strength is indicated by a LED on the top of the object.

 

 

 

harvesting the electromagnetic field of the cell phone

 

 

there are two types of devices for different electromagnetic fields: a smaller harvester that is suitable for lower frequencies below 100Hz which can be found in the general mains (50/60Hz, 16,7Hz) and a larger variation that is suitable for lower and higher frequencies like radio broadcast (~100MHz), GSM (900/1800MHz) up to bluetooth and WLAN (2,4GHz).

 

 

 ‘electromagnetic harvesting’

 

 

detecting the electromagnetic field of a power line

 

 

harvesting the electromagnetic field of a ticket validator

 

 

harvesting the electromagnetic field of a coffee machine

 

 

harvesting the electromagnetic field of a copy machine

 

 

farming at a substation

 

 

the smaller harvester

 

 

the larger harvester

 

 

designboom has received this project from our ‘DIY submissions‘ feature, where we welcome our readers to submit their own work for publication. see more project submissions from our readers here

  • I am curious about how long it would take to charge a standard AA battery using this device..

    morgan says:
  • It takes around 24 hours to charge a standard AA battery, found this out by going onto his website and reading his post about this.

    Rowdy says:
  • where to buy? how much?

    cody says:
  • Siegel must know about the conservation of energy. If he really wants to “harvest” electricity from power lines, he should just connect wires to them. It is no worse than pulling down the fields, increasing losses in the lines. It’s actually even worse to use his “harvester” due to conversion losses in his device. Do you really want a nearby stranger powering their inefficient battery charger with your cellphone battery?

    Bob says:
  • I want a harvester…can I make one or can I buy one?

    jean says:
  • this technology can be used ito charge mobile phones. He will be the richest guy in the world.

    adam says:
  • Max power? 0.1mA? 🙂

    elec says:
  • How to Make It ? Can you tell me?

    Nabeel Ahmed Farooqui says:
  • gimme gimme

    your mum says:

have something to add? share your thoughts in our comments section below.

comments policy
LOG IN
designboom's comment policy guidelines
generally speaking, if we publish something, it's because we're genuinely interested in the subject. we hope you'll share this interest and if you know even more about it, please share! our goal in the discussion threads is to have good conversation and we prefer constructive opinions. we and our readers have fun with entertaining ones. designboom welcomes alerts about typos, incorrect names, and the like.
the correction is at the discretion of the post editor and may not happen immediately.

what if you disagree with what we or another commenter has to say?
let's hear it! but please understand that offensive, inappropriate, or just plain annoying comments may be deleted or shortened.

- please do not make racist, sexist, anti-semitic, homophobic or otherwise offensive comments.
- please don't personally insult the writers or your fellow commenters.
- please avoid using offensive words, replacing a few letters with asterisks is not a valid workaround.
- please don't include your website or e-mail address in your comments for the purpose of self-promotion.
- please respect jury verdicts and do not discuss offensively on the competition results
(there is only one fist prize, and designboom usually asks renown professionals to help us to promote talent.
in addition to the awarded designs, we do feel that almost all deserve our attention, that is why we publish
the best 100-200 entries too.)

a link is allowed in comments as long as they add value in the form of information, images, humor, etc. (links to the front page of your personal blog or website are not okay). unwelcome links (to commercial products or services of others, offensive material etc. ) will be redacted. and, ... yes, spam gets banned. no, we do not post fake comments.

technology news