Enobio
Wireless brain monitoring

The portable wireless EEG system

 

Enobio® is a wearable, modular and wireless electro-physiology sensor system for the recording of EEG, ECG and EOG.

  • EEG (Electroencephalogram - brain activity)
  • ECG (Electrocardiogram - heart activity) and
  • EOG (Electrooculogram - eye movement)

Enobio® opens a wide window of observation to the human body and in particular to the human brain. Application areas include research, biometry, HMI, vigilance monitoring and biofeedback for virtual reality.

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Enobio technical specifications

FEATURES  
Number of Channels 4   Input Biopotentials (EEG, ECG, EMG)
Output Digital streaming over TCP/IP.
Raw data files- ASCII output and EDF compliant.		   Sampling 16 bit sampling at 250 S/s
Bandpass 0 to 50Hz   DC Offset Automatic offset compensation for each channel
Wireless communication IEEE802.15.4 PHY   Data rate Up to 128000 bits/s
Dimensions 660x550x250 mm   Weight 65 g
Operating time 4 hours four channels at maximum sampling rate   Charging time 1 hour
Operation range -40°C to +125°C      

 

ANALOG  
Analog Channel gain   70   CMRR   96 dB
Input Referred Noise   32 nV/√Hz (<10µVrms 0.1-100Hz for electrode)   Low Frequency Noise   0.3 µV p-p (f = 0.1 Hz to 10 Hz)
EMI filter   40kHz   Anti-aliasing filter   30Hz
Input Voltage Range   0.5 V to 1.6 V   Maximum Range Input Voltage   -0.3 V to 3.0 V

 

DIGITAL  
Quantisation [bits]   16 SAR ADC   No Missing Codes   15 bits typical
Resolution   700nV   Dynamic Range   150dB
Signal-to-Noise Ratio   83 dB min   Sampling rate [Hz]   Up to 250S/s - 4 channel

 

POWER  
Enobio Interface (electrode)   ≈6 mW   ENOBIO SCM   ≈20 mW four channel full rate
Battery   Rechargeable Lithium Polymer   Battery Capacity   610mAh
Nominal Voltage   Rechargeable Lithium Polymer   Charger   100-240V, 50/60Hz
Charging Cycles   >500