Let's Make Robots!

EMG sensors for hobby robotics

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MarkusB's picture

I have:http://letsmakerobots.com/node/25919

But could only get a LED switch on and off with my biceps

ignoblegnome's picture

I totally forgot about that post of yours, Markus. Thanks. 

As opposed to the circuit you used,  In the paper I am reading, the EMG sensor consisted of an instrument amplifier providing a gain of 1000, followed by a notch filter to remove 50/60Hz, a 2nd order high pass filter removing lower than 10Hz, a 2nd order low pass filter removing above 500Hz, and a final amplifier stage with a gain of 100. I am trying to get details about the circuit.

After the EMG sensor, the researcher had a EMG motor controller that interpreted the EMG signal and translated it to servo or motor control. First the EMG signal is rectified so that all the negative amplitude become positive. It then goes through another RC low pass filter, and then finally through a H8/3664 microchip for processing. I imagine an Arduino or other standard microcontroller might be used for this last stage instead.

ignoblegnome's picture

Does anyone have an IEEE Xplore membership that will allow them to download the paper describing Kojiro Matsushita-san's work at http://ieeexplore.ieee.org/articleSale/Sarticle.jsp?arnumber=5353944?

ignoblegnome's picture

I was able to get a copy of the papers through a friend. I'll update this post with more information soon.