摘要
提出并设计了一种新的电刺激试验仪器,该仪器由4个并行的通路组成,4个通路可实现单路循环或4路循环工作.在工作的同时,可实现脉冲刺激信号电平值、训练时间间隔及训练次数的设定和切换.该仪器刺激信号由微控制器的DA输出驱动功率放大器来实现.由于DA输出的灵活性,仪器可通过更新仪器固件来产生任意形式的电刺激信号.因此,该仪器能通过适当更新仪器固件来满足不同的应用场合,特别适用于电刺激参数需要探索的科学研究场合.
A new electrical stimulator is proposed and designed. The equipment consists of four test channels which work independently or by turns. And desired test parameters, such as stimulating voltage, time delay in each channel and training circles, can be set or changed by user in the beginning or training procedure. The stimulating signal is generated by a power amplifier driven by DAC of controller. As the flexibility of DAC, the stimulator can generate desired stimulating signal of any form by updating the stimulator＇s firmware. Therefore the stimulator can satisfy many applications by updating the firmware, and especially fit the case that stimulating parameters remain unknown in some science re- search fields.
出处
《测试技术学报》
2008年第6期525-528,共4页
Journal of Test and Measurement Technology
关键词
电刺激器
医疗保健
学习记忆机理
electrical stimulator
medical care
learning and memory mechanism
