Enobio
Encyclopedia
Enobio is a wearable, modular and wireless electrophysiology
sensor system for the recording of
Enobio has been developed by the Spanish company Starlab and was released in June 2009.
Electrophysiology
Electrophysiology is the study of the electrical properties of biological cells and tissues. It involves measurements of voltage change or electric current on a wide variety of scales from single ion channel proteins to whole organs like the heart...
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.
Enobio has been developed by the Spanish company Starlab and was released in June 2009.
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 | 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 | |||||