| 一种基于虚拟仪器的听刺激器系统的设计 |
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| 引用本文： | 辜承慰,李贞姬.一种基于虚拟仪器的听刺激器系统的设计[J].科学技术与工程,2011,11(23). |
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| 作者姓名： | 辜承慰 李贞姬 |
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| 作者单位： | 南方医科大学生物医学工程学院,广州,510515 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 介绍了一种用于听诱发反应的听刺激器的设计。传统刺激器通常分为软件刺激和硬件刺激两种,存在精度难以保证和刺激方案有限等问题。本系统基于虚拟仪器设计,软件部分采用LabVIEW(laboratory virtual instrument engineering work-bench)开发,提供使用界面和各类刺激的编辑;硬件部分用PCI6221采集卡作为信号输出,接D类音频功放提高系统的驱动能力。实验表明,本系统可以提供高精度的刺激信号,同时可以任意设置刺激波形,失真度低,能够满足大多数听诱发反应实验的要求。
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| 关 键 词： | 声刺激器 虚拟仪器 音频放大 数据采集卡 听诱发电位 |
| 收稿时间： | 5/16/2011 5:13:19 PM |
| 修稿时间： | 5/16/2011 5:13:19 PM |
Design of Sound Stimulation System Based on Virtual Instrument |
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| guchengwei and.Design of Sound Stimulation System Based on Virtual Instrument[J].Science Technology and Engineering,2011,11(23). |
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| Authors: | guchengwei and |
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| Institution: | GU Cheng-wei,LI Zhen-ji,WANG Tao (School of Biomedical Engineering,Southern Medical University,Guangzhou 510515,P.R.China) |
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| Abstract: | The aim was to propose a new sound stimulation system for Auditory Evoked Potential recording.Most traditional stimulators can be divided into software stimulators and hardware ones;the main problems existed were the precision can not reach the request of some special experiments and the stimulating signals were limited to a few kinds due to the structure.LabVIEW(laboratory virtual instrument engineering workbench)was employed to accomplish the software system,which included the operator interface and sound... |
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| Keywords: | sound stimulator virtual instrument audio power amplifier data acquisition card auditory evoked potential |
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