KZurn
KZurn
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p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica; color: #454545} span.s1 {color: #e4af09} Here is the link to the Florida Research instruments web site for an electrode, lead and headband package for the Ganglion https://fri-fl-shop…
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We now have a dry electrode with longer spikes for use on subjects with longer hair. See www.fri-fl-shop.com
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No, they are larger because there is a hole to inject gel if you do not get a good connection. OpenBCI has a way to connect to them See their instructions for their headset.Karl Zurn, Florida Research Instruments
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Our dry electrodes have a small hole in the snap so that gel can be injected if you do not make good contact.
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There are two components in offset voltage cased by electrodes First a DC offset and Second a drift. In addition there two other offsets First a current offset caused by the different input currents to the amplifier and Second a voltage caused by t…
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When the drift is in the same direction using the same metal for ground and signal electrode they would cancel out the drift.
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Good point but using Ag AgCl is the best in all cases. But if you used Gold and Ag AgCl I think it would be better than A gold gold. When you have an offset drift in a gold gold there is no guarantee it would in the same direction.
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We have a discounted on our AgCl Ear Clip electrodes from $19.95 to $14.97. It is good until April 30. See this link http://fri-fl-shop.com/product/td-430-silver-disc-electrode-ear-clip/ Karl Zurn
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Joel and William, Joel, Our connectors are gold plated. I have not noticed corrosion. We have some snapped for several months but these are just sitting on the shelf. I wonder if the issue on yours is moisture. Our electrodes are plated…
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I do not have much experience with wear on the comb end of our electrodes because the snap end will fail much before the comb end. I would assume William’s experience with the electrodes he uses would be the same as ours on the comb end. On ano…
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Some people have had questions about our EEG Dry Electrodes. I have post some answers on our web site www.fri-fl.com click on the Manual Tab and look at EEG Electrode Information.Karl Zurn
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Afliu's problem is with China Post that can take 4 weeks plus. The other options are FedEx, UPS or DHL these cost about $65 we agreed to resend at $50 (below our cost).Karl Zurn
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I am at the Society for Neuroscience meeting. You can reach me on my cell phone 802 238 5114 I am sorry I can not get my messages on my land line.
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I agree with William. We at Florida Research Instruments have done a lot of work on Active Dry Electrodes but a very good signal can be obtained with a proper electrode and short lead wires. We offer EEG Dry Electrodes and 18 inch lead wires. See…
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Hi derekja, After seen a post with the high costs of hardware that interfaces with the BCI2000 software we are getting back on our project of packaging the 32 bit 16 channel OpenBCI system. We hope to have a system in the $1,000 range. If there…
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As far as I know there is not another connector that is as safe when working with human subjects than the 1.5 mm touch proof plug, Even the .1 female connector that OpenBCI uses could be connected to a pin that has voltage on it.Karl Zurn
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This Coupon will expire July 1, 2015
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Here is an easier way to obtain the $15 discount on the headband set The webshop link for the headband set is at http://fri-fl-shop.com/product/dry-eeg-drywet-electrodes-eeg-headband-and-5-cables/ Add it to your shopping cart, and when you che…
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The time for Europe via USPS First Class is usually about 1 week. Some South American countries can take a month. This is our first order to Veitnam. The main delay is usually in the customs of the person’s country. We are looking into DHL for sh…
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What was a little confusing was I am used to seeing my ECG with a high cutoff of 150 Hz. The OpenBCI board was set at 50 Hz this would attenuate the higher frequencies of the R wave. Brooks was running the computer so I was looking at a distance a…
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William,I think I will adjust my test procedures. I first put in a sine wave then an actual physiological signal. I am going to add a step-put in a signal from a simulator. I had forgot my Lead II was a little abnormal. I looked over an old 12 L…
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Thanks for the feedback! We applied the changes you suggested (turning off SRB2 and connecting the BIAS to the left leg. We also switched the negative back to the right arm, where it's supposed to be. Interesting result: Karl's ECG was exa…
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Our Web Site is www.fri-fl.com What you need is fri-2140-1A 5 wires and Dry and Wet electrodes for 4 EEG leads and common.Karl Zurn, Florida Research Instruments Inc.
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You can use an alligator clip as an inexpensive alternative. The leads we sell are not the standard snap but allow you to inject gel into the top of the electrode. The top of the electrode has a hole in it so it is also larger than the snap elect…
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We have introduced an EEG Headband. I can offer the OpenBCI community a discounted price of $59.95 Including shipping to the US. Export add $5. This is a $15 savings. Send Payment via PayPal to FloridaResearchInstruments@gmail and mention this …
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In regard to the BraiNet cap the holes are too big for our dry electrodes but you can put one of our TD-22 Electrode Collars “washers” on the inside and they will work. If anyone would like I to try these collars I could send a few at no charge. Em…
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Hi Joel, The electrode package is in the mail. I have some other packages (www.fri-fl.com) I would be happy to give OpenBCI people a discount on. We have quite a few items in development and will keep you updated on our progress. karlzurn@gmail…
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If some OpenBCI people want to try out EEG Dry Electrodes I can offer a special price for Package of 25 Disposable / Reusable Dry Electrodes & 3 Lead Wires (FRI-2140-1) $29.95 and this including shipping. It is a savings of about $10. They ca…
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We don't use a standard ECG cable because we want to be able to inject a gel (not a paste) into the electrode if necessary. A typical snap ECG cable would cover up the hole.Karl Zurn, Florida Research Instruments
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I have been speaking with a number of people about Dry Electrodes. I tried to explain some of the options. Go to our web site www.FRI-FL.com and click on the Manuals tab. Download EEG Manual. This is a work in progress and it will be continuall…