Phantom Electroencephalogram Simulator for Automated Tests and Validation: Signals Repeatability

We have designed and fabricated an automated eight-channel phantom simulator of a human electroencephalogram (EEG). This device was developed for use as an automated test bench, a laboratory installation for research or as a precision generator of ultra-low voltage signals for the development of analog circuits in EEG recording devices. In this work, the repeatability of the reproduced EEG and test signals was evaluated. Schemes and experimental results are presented. The obtained data show that the artificial EEG correlates with the original one with a coefficient of 0.8-0.9. The coefficient of variation does not exceed 10%, which indicates a sufficient level of repeatability of EEG reproduction.