Saturday, July 16, 2011

Transcranial Magnetic Stimulation project - part 1

Transcranial Magnetic Stimulation (TMS) is a technique to stimulate brain tissue directly through the skull. It works by sending a very high current pulse through a coil that is located on the subject's scalp. The fast-rising edge of the pulse induces a current in the brain tissue, causing neuron stimulation.





This device uses a capacitor bank, high current SCR, trigger circuit, figure-8 (or butterfly) coil, and high voltage charging circuit.

Link to the SCR datasheet: http://www.5scomponents.com/pdf/5STH_30J4501.pdf

Some good technical information: http://www.abovesobelow.com/TMS/cTMS.pdf

Wikipedia: http://en.wikipedia.org/wiki/Transcranial_magnetic_stimulation

5 comments:

  1. Ha! I found a complete TMS system at the local university surplus auction. I didn't buy it, however.

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  2. great work. Where did you get the SCR and how much did you pay for it.

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  3. The SCR was donated by a generous person. I don't know what it is worth.

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  4. Hi Ben, could you please send me the specifications of TMS? I tried to enter the page: http://www.abovesobelow.com/TMS/cTMS.pdf, but it was not found. I'm from Brazil.

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  5. The same as Alexandre- your link isn't working,

    where can I source a 400v capacitor?? all the ones I see floating around are 2.5 volts
    Johnpaulstudentmail@gmail.com

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