多通道经颅电刺激仪的设计和研究

Objective: To design a multipath transcranial electrical stimulator and has many kinds of treatment modes. Methods: Multipath transcranial electrical stimulator utilized Atmega128 as a main controlled chip to control adjustable waveform generating circuit, and could generate many kinds of stimulation modes, the voltage of stimulation which was accorded with the requirement was broadband, continuous adjustable, and wave and frequency of output was also adjustable. Results: A well effective, beneficial, safe, adjustable multipath transcranial electrical stimulator was designed, and it contented initial requirement. Conclusion: After commissioning and validation, the output voltage of multipath transcranial electrical stimulator was 0-10 V. the adjustable range of the output frequency was 0.1Hz~5MHz, the accuracy was ±2%, and might generate square wave, triangular wave, sine wave and their modulated wave, so it achieved the requirement and idea of design.