additional sensors

kkreegi · Post by **kkreegi** » Thu Apr 03, 2008 8:56 am

In addition to GSR sensors we do use also Active Two respiration sensor, temperature sensor and a finger clip plethysmograph. Now we are unsecure -- what are the units of measurement registered (and opened for an analysis in Brain Products Analyzer) for the channels? Temperature seems to be a flat line - is it badly calibrated or broken? Can you provide some help how to handle and read these recordings?(Sensors were applied as tha manual says, of course).

Thanks,
Kairi

Post by **Coen** » Fri Apr 04, 2008 1:14 pm

The unit and scaling for each channel is listed in the BDF file header, see http://www.biosemi.com/faq/file_format.htm. Not all review programs may read and display this information properly (and may plot everything as uV instead of Siemens, degree Celsius, etc).

Operation of the temperature sensor is easily checked in ActiView: a numeric display in degrees Celsius is found in the left sidebar when the sensors tabpage is selected.

Best regards, Coen (BioSemi)