Enobio
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This article relies largely or entirely upon a single source. (June 2010) |
Enobio is a wearable, modular and wireless electrophysiology sensor system for the recording of
- EEG (Electroencephalogram - brain activity)
- ECG (Electrocardiogram - heart activity) and
- EOG (Electrooculogram - eye movement). Application areas include research, biometry, Brain–computer interface, vigilance monitoring and biofeedback for virtual reality.[1]
Enobio was developed by the Spanish company Starlab and was released in June 2009[citation needed].
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 bit/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 | 40 kHz | 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 | ||
