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Eye Mario - Biomedical Analog Circuit How To

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Uploaded by on Aug 3, 2010

Here we describe the design of the daughter card mixed with a li'l bit of theory on how to make an electro-oculogram measurement.

Detailed design disclosures and diagrams will be on http://www.waterloolabs.com/how-we-did-it.html soon.

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Uploader Comments (WaterlooLabs)

  • He's wearing a Baylor shirt underneath FTW! Go Baylor Engineering!

  • @SearchForTruth1 Two of the engineers on this project came from Baylor engineering! Sic Em' Bears!

Top Comments

  • Wtf did I just watch?

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All Comments (25)

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  • over 3000 volts!!!! no... OVER 9000!

  • @WaterlooLabs i do notice a GT/ Georgia Tech Banner as well :)

  • @WaterlooLabs Yes I knew these guys freshman year! I was an engineering major, but it wasn't my calling. I'm going to be hospital pharmacist however! All the best to you guys.

  • @mathieu1881

    Hunter, Chris, and Barron have degrees in Electrical and Computer Engineering. Will has a degree in Electrical Engineering. Stephen and Doug have degrees in Mechanical Engineering.

  • @legion2

    Yes, most of us are engineers at National Instruments by day. Only at night do we make these strangely fun projects. Luckily, National Instruments is quite tolerant of our antics, even if we are ghostriding a Buick around their parking lot, steered with an iPhone.

  • @zeLordz

    If you're interested in the full specs of our isolated sigma-delta ADC, you can find them on analog devices website.

  • @ZeLordz We used a sigma-delta ADC to digitize the signal, and reconstructed it with a 3rd-order CIC (also known as a sinc3) digital filter on the FPGA.

  • What type of converters did you guys use? Sigma-delta, flash, pipelined, SAR, ...???

  • @Izidv

    I guess maybe for noise shaping,, noise decorrelation of the signal? Or something...

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