I'm currently researching how skin reacts to wearing a prosthetic device. One of the factors I wish to assess to the amount of fluid (sweat) that builds up at the prosthetic interface (between skin and prosthetic). 

I've found one study (Cutti et al. 2014) that used humidity sensors to quantify this. However, I think that humidity sensors will saturate easily and are not *really* a true representation of how much sweat is at this interface.

I've been thinking that an alternative could be galvanic skin response electrodes. I know that typically they are used to track emotional responses (which are extremely small signals). However, given that the signal (conductivity change) is a response to the amount of sweat there, these sensors should also be usable to detect much large changes in amount of sweat due to sweating produced as a thermoregulatory response.

I realise this would require some calibration and testing to get an appropriate measure of amount of sweat/ signal. However, I just want to check that I've not massively overlooked something about GSR tech, as it's not exactly an area I'm familiar with. Does this sound like it would work (are there any existing studies doing the same that people know of?)

Cheers!