Re: Measuring Electrode Impedance
Chip Audette <[email protected]>
| Newsgroups | gmane.comp.science.openeeg.general |
|---|---|
| Message-ID | <[email protected]> |
And as a follow-up, I've measured the electrode-to-skin impedance using my ADS1299 based system. I tried disposable ECG electrodes and I tried gold cup EEG electrodes. If you're interested in seeing come results, you check out: http://eeghacker.blogspot.com/2014/04/impedance-of-electrodes-on-my-head.html Chip ________________________________ From: Chip Audette Sent: Thursday, April 10, 2014 7:07 AM To: [email protected] Subject: Measuring Electrode Impedance I finally took the time to try to understand the technique for measuring the impedance of the electrode-to-skin interface. It is generally considered critical that you get a nice and low impedance at each electrode and that the impedance is similar between all of your electrodes. I've been helping to develop the OpenBCI EEG system, so I focused on how the ADS1299 chip (which is the core of OpenBCI) approaches impedance monitoring. If you're interested to see how it works, you can check out my post and pictures below... http://eeghacker.blogspot.com/2014/04/openbci-measuring-electrode-impedance.html Thanks all! Chip ------------------------------------------------------------------------------ Put Bad Developers to Shame Dominate Development with Jenkins Continuous Integration Continuously Automate Build, Test & Deployment Start a new project now. Try Jenkins in the cloud. http://p.sf.net/sfu/13600_Cloudbees