Olimex Support Forum

Others => Biofeedback - EEG, ECG, EKG => Topic started by: youngz on December 15, 2016, 02:10:22 pm

Title: EMG electrodes
Post by: youngz on December 15, 2016, 02:10:22 pm
Hi, I have bought the EMG passive electrode (https://www.olimex.com/Products/Duino/Shields/SHIELD-EKG-EMG-PA/open-source-hardware) and the support  (https://www.olimex.com/Products/Duino/Shields/SHIELD-EKG-EMG-PRO/)for the electrodes.
I would like to learn how to use these, are there some references?

Considering the passive electrodes, if I put the DRL that should be on the leg (I think it means Driven right leg) on the muscle basis (e.g. near the right wrist) I reveal the information about the right arm? And how I can translate the same thing with the active electrodes?

Summarizing, in the passive/cable support electrodes, what electrode I have to attach at the base of the muscle? What electrode I have to attach on the muscle (the muscle that I aim to detect the movements)? And, what electrode I have to attach on a reference muscle?

Regards
Title: Re: EMG electrodes
Post by: LubOlimex on December 20, 2016, 02:36:18 pm
The unit is grounded using the DRL electrode. Refer to this wiki article that details the DRL method: https://en.wikipedia.org/wiki/Driven_right_leg_circuit

Best regards,
Lub/OLIMEX