摘要
本设计实现了USB接口的,模拟放大、采样一体化的便携式脑电图机。采用AN2131进行A/D转换控制和PC的USB通讯等工作。通过数字光耦完成电路的隔离,为减少光耦的数量采用了软件模拟的SPI接口通讯。设计的脑电图机可以在恶劣的电磁环境下完成常规脑电图的检查。
The designed portable EEG can be used in operating room or ICU where the electromagnetic environment is very bad, adopt AN2131 to carry on such work as USB communication that A/D changes controlling and and PC, etc.Finish the segregation of the circuit, SPI interface communication of adopting software simulation for the quantity of reducing the photosensitive resister through the digital photosensitive resister.
出处
《医疗装备》
2006年第1期9-11,共3页
Medical Equipment
