Rand
Rand
About
- Username
- Rand
- Location
- England
- Joined
- Visits
- 14
- Last Active
- Roles
- Member
- Location
- England
Comments
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I will try to use silver chloride ear clips and compare them with gold chloride ear. Today I will make an order. Thank you so much.
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Quote, yes it was Gold for all 3 connections.
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Quote, thank you for your advice. This result I received with gold electrodes, it looks better. Looks like the problem was with the dry electrodes. But how I can decide this problem, need more pressure, or replace reference electrodes? > @wjcro…
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I didn't use "star-grounding" I will read about it more carefully. I suspect that problem with the connection electrode to the scalp, because when I shorted the measurement electrode and reference electrode I receive a stable result - 0.5 (+-0.2 mkV…
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original graph - it is not the correct image, it was a problem with code for visualization. The last image is correct.
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William, thank you for your reply. Now I use pass filter 1-40 Hz. I can detect blinking and chewing. I have a problem only with this -high-frequency noise. In the pic. - it is real-time. In the pic length about - 3 sec
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Hello, everyone, can not understand many days which type of noise in the signal, how do you think which reason can be for this anomaly signal? what signal so quickly jump sometimes. It is real-time . In the pic length about - 3 sec. The signal fro…
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William, thank you!!
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William, thank you for yot reply. Yes, it is from Ali-express. How you think, Can I check the quality of electrodes if I measure resistance by Multimeter/Ommetr?
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Dear William, thank you for your quick reply. It is my private board with ADS1299. This signal i receive without any filter (raw data). Thank for your link. It is mean that high pass filter will be enough for decide this problem?