Neurologger

New!

The novel modification of this version of the Neurologger has improved parameters comparatively to the previously published (Vyssotski et al., 2006).

Now the device has 8GB of storing memory with the possibility of further increase up to 16GB, and very soon - up to 32GB. Simultaneously the device became approximately two times shorter. This became possible due to exploiting of the microSDHC card instead of the standard SD card used before.

There is a modification of the logger equipped with a three-dimentional accelerometer, sampled with the same rate as EEG channels. This version of the logger also can be used just as a 3-D storing accelerometer, if EEG channels are not needed.

The power consumption of this modification is approximately 40% smaller against the original version.

 

 

Technical data of the Neurologger (the first original version)

Number of channels:

8 differential

ADC resolution:

10 bit

Input range:

+/- 500 µV

Neurologger mechanical dimensions:

59x36x4 mm 3

Total mechanical dimensions (Neurologger, battery):

66x36x10 mm 3

EEG logger weight without battery and preamplification head:

7 g

Preamplification head weight (with cable): 2 g
Weight 560mAh battery: 13 g

Total weight:

22 g

Battery life time:

EEG logger, 8 channels, 125, 250 or 500sps

2 days 5 h

Single unit logger, 2ch x 10ksps

22 h 20 min

1GB SD card data filling time:

 

8 channels, 125sps

7 days 20 h

8 channels, 250sps 3 days 22 h

8 channels, 500sps

1 day 23 h

2 channels, 10ksps

9 h 24 min

1GB data downloading time: Through serial interface 2 h
Through MMC/SD reader 20 min

Interface:

3 RS232 (3.3V level), 1.5Mbps, converted to USB via DLP-USB232M; 2 GPIO: for synchronization and for Status LED, power supply

Data format:

Custom

Please direct all questions to Alexei Vyssotski
Last updated June 24, 2009

© 2009 Alexei Vyssotski