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Topic: Re: Can you sent data through the human body?? (Read 866 times) previous topic - next topic

vasquo


mmcp42

i guess a lot depends on whether you want to use te human body afterwards!
there are only 10 types of people
them that understands binary
and them that doesn't

Retroplayer

Of course it is possible. But there are many factors to consider both for safety and application. Too much to try to do it here. A brief tidbit is that the body is essentially a capacitor. AC has an easier time travelling through the body than DC. DC requires more current to harm someone, but usually results in burns and muscle lock. AC at low frequencies requires less current to cause damage and is especially dangerous if it is passed across the heart (hand to hand.) Any design you made would have to use a high frequency, be VERY VERY stable in current in the single microamps range, and use conductors that didn't irritate the skin.

A project like this crosses many different disciplines and would require very robust and high-precision electronics design. So it is not as simple as just putting a wire on the skin.

0AlphaOmega

Thinking aloud. You can easily use very high impedance sensors that that can be made with a simple CMOS gate or two and some 1 to 10 Meg resistors. So a hex inverter could be used to both make the input of a sensor and say a monostable to give a 'clean' buffered output. A label button could offer a high frequency source an next to zero current that could be gated by a data stream, more CMOS.

I think more info is required. I have to agree with other posts regarding graduation projects and safety.

I understand that Texas is keen on such development although they have not been very successful to date.... depending how you measure success.
For whom does the clock pulse? It pulses for you!

0AlphaOmega

Quote
...or you already know somebody else has solved the problem and your "project" will just be to copy whatever they did, or you hope you're going to find that somebody has already solved it and you can just copy their solution. The first case is the one which would earn you most credit but your professed lack of technical skills seem to rule that out....

Very much agree, but as a matter of interest, my boy is at uni and every piece of work is electronically checked for plagiarism, both external to the set piece (the world) and locally (the class) and this is used as part of the mark scheme. Although this can be rather stupid! When he was returned his first piece of work marked at 89% He found he had lost that 2% for using the same column heading as someone else! He has also found that handing in your work first puts his class mates at a disadvantage, seems a nasty way to earn a 1st! But does get the work in on time ;)
For whom does the clock pulse? It pulses for you!

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