BioSemi.nl

Thank you for your time.

Hi

I have one last question about the measurement of GSR.

> Only when one of the two GSR electrodes is disconnected (or has an exceptionally high impedance), the current will be imbalanced and the excess flows to the DRL.

The reason why the current does not flow through DRL is that the ...

Hi

First, what is the input data ? The voltage digitized with a LSB = 31.25 nV ? Or the resistance ? Both are proportional, but with a difference of magnitude of10^6.

I have some questions about two steps:

step 3) Signal1 = 13.3 * Signal1
Can you explain the reason behind this multiplication ...

Thank you so much !

I will have some more questions tomorrow ... You did a great job so far

Gordak

Thank you for your explanations !

Some unrelated simple questions first :
1) If my signal in my BDF file has 'nS' as units, can I conclude that my excitation frequency is 16 Hz :?:

2 ) I have some troubles about the digital to "physical" conversion. It is said here http://www.biosemi.com/faq ...

Hello !

First, thank you for your previous answer.

I'm wondering about the use of the reference and active electrodes in the recording of GSR.
To measure biopotentials, it is important to have a good common mode rejection ratio. I found some schemes on your website. One of them is about CMRR ...

Hello

I record electrodermal activity with a Biosemi device. I currently read my data from as EDF file previously converted from the bdf file with the converter found on Biosemi website.
http://www.biosemi.com/download.htm

This converter applies a high pass filter on the data in addition to the ...