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Unit of GSR https://www.cooking-hacks.com/forum/viewtopic.php?f=39&t=10701 |
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Author: | hhhddd [ Sun Oct 01, 2017 9:11 am ] |
Post subject: | Unit of GSR |
Hi everyone I looked at "FAQ E-Health - Read Before You Post" and found the description "GSR → Electrical conductance (Ohm)" In my understanding, conductance is reciprocal of resistance. So, skin conductance is generally shown with the unit "(micro) siemens". I'm reading skin conductance using "eHealth.getSkinConductance();". The values returned by this function generally range from 4.0 to 15.0. #This is acceptable range if the unit is micro siemens. At the same time, journal papers reporting GSR with Ohm unit report values ranging from 30-80 kilo (!) Ohms. So if the unit of values returned by e-Health sensor is actually "Ohm" as described in "FAQ E-Health - Read Before You Post", it follows that measurement of GSR by e-Health platform is about 1/1000 of previously reported amplitudes of GSR ![]() Am I totally wrong in my understanding? Or would anyone explain what's happening? #Or my skin is hyper-dry? Best regards |
Author: | libelium-dev [ Mon Oct 02, 2017 8:30 am ] |
Post subject: | Re: Unit of GSR |
Hello hhhddd, Both data are inversely proportional. The unit given by "getSkinConductance" is microSiemens. The unit given by "getSkinResistance" is Ohms. Regards |
Author: | hhhddd [ Mon Oct 02, 2017 2:26 pm ] |
Post subject: | Re: Unit of GSR |
I see. Thank you for the clarification ![]() best regards |
Author: | libelium-dev [ Tue Oct 03, 2017 8:11 am ] |
Post subject: | Re: Unit of GSR |
Hello hhhddd, you are welcome, thanks for your contribution to the forum. Regards. |
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