摘要
介绍一个双向的,超低噪音,增益可按指数规律变化的放大器AD604,用来形成诱发电位的刺激。还介绍了一个高性能、低成本的多功能PCI卡及其在医学仪器上的应用,讨论基于此卡的诱发电位测量仪的设计研究,实现了脑干诱发电位上的微弱信号的采集。
An amplifier AD604 is introduced in this paper, which has ultra low noise and variable gain according to exponent orderliness. It is used to shape evoked potentials stimulus. Also a high performance, low-cost multifunctional PCI card including its application in medical instruments are presented. Then the evoked potentials measuring apparatus based on this card are discussed. The acquisition of weak signal of brainstem-evoked potentials is achieved.
出处
《仪表技术》
2008年第4期48-50,共3页
Instrumentation Technology
基金
上海市教育委员会自然科学基金资助项目(04EB25)
关键词
多功能采集卡
指数放大器
耳听觉诱发电位
multifunctional acquisition cards
exponent amplifier
audition-evoked potentials
