>The implants are powered by radio frequency waves, which can safely pass through human tissues. In tests in animals why animals? couldn't the researchers just swallow that "prototype about the size of a grain of rice" themselves and/or get several paid volunteers?
Wireless system can power devices inside the body
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Re: Wireless system can power devices inside the body
#32>The implants are powered by radio frequency waves, which can safely pass through human tissues. In tests in animals why animals? couldn't the researchers just swallow that "prototype about the size of a grain of rice" themselves and/or get several paid volunteers?
Re: Wireless system can power devices inside the body
#33The main thing I got from the MIT article is this: "This system relies on an array of antennas that emit radio waves of slightly different frequencies. As the radio waves travel, they overlap and combine in different ways." This is known as constructive interference, pretty nifty to see it used in this context. The range has been increased from 10 cm to 1 meter since the paper I co-authored on this subject. Impressiv…
What creates interference is difference is phase among waves of the exact same frequency.
It's odd that the paper author is making such basic EM theory mistake, and I wonder what the actual device construction is like. (since it cannot work the way he describes at steady state)
Maybe he's interpreting phase modulation as frequency modulation? Of course at steady state all frequencies would be the same, making this a weird/incorrect interpretation I think.
Re: Wireless system can power devices inside the body
#34Re: Wireless system can power devices inside the body
#35Plenty of nefarious applications for this. The range alone blows away existing RFID designs, which will make it the preferred "chipping" technology for surveillance states everywhere.
Re: Wireless system can power devices inside the body
#36Plenty of nefarious applications for this. The range alone blows away existing RFID designs, which will make it the preferred "chipping" technology for surveillance states everywhere.
Right now the preferred "chipping" technology is your smart phone.
You can leave your smartphone at home.
Re: Wireless system can power devices inside the body
#37Earlier quoted context omitted.
Right now the preferred "chipping" technology is your smart phone.
As bad as smartphones might be, I hope you're not seriously trivializing actual implants by comparing them to smartphones. You can leave your smartphone at home.
Re: Wireless system can power devices inside the body
#38How much energy could a device extract from blood sugar?
I'm waiting for someone to invent the implantable chip that converts blood sugar into heat/light purely with the intention of wasting that energy. Grab enough power to monitor blood sugar, to make sure you aren't putting someone into a coma, but otherwise just try to burn an extra few hundred calories a day.
Re: Wireless system can power devices inside the body
#39Earlier quoted context omitted.
Then you need to radiate heat somewhere. If you heat up the blood the body will spend less energy keeping warm leading to no benefit. If you generate a lot of heat... it goes really bad.
Easy, simply install a venting port in the patient.