https://scholars.lib.ntu.edu.tw/handle/123456789/83347
標題: | 大腦皮質場電位多通道記錄系統研發 | 作者: | 趙福杉 | 關鍵字: | 場電位;類比/數位;放大器;field potential;A/D;amplifie | 公開日期: | 31-七月-2000 | 出版社: | 臺北市:國立臺灣大學醫學工程學研究所 | 摘要: | 多通道同步的場電位記錄對於獲得神經信號在 三度空間正確的分佈有其必要性,然而基於價格與 技術的考量並不容易達成許多通道同步擷取之功 能,因此本計畫試圖以〝近乎〞同步之方式來達成 上述目標。以極低的取樣時間取樣緩慢變化的場電 位信號其誤差十分小,因此這種架構之取樣提供了 一折衷之方法,以低廉的成本達成多通道同步擷取 之功能。本文詳述了整個記錄系統之設計,內容包 了放大、濾波器、A/D 介面卡及及控制軟體等等, 希望對於其他研究同好有所幫助。 Synchronization among multi-channel recording is important for obtaining three-dimensional distribution of neural signals. The cost and technical complexity, however, prevent the application of this recording method. In this investigation an idea of “pseudo” synchronization was proposed to overcome this difficulty. The sampling speed is very high for the low-frequency field potential; that is, the introduced error caused by not synchronization is very small and can be neglected. In summary, this method is proved to be a tradeoff between cost and performance. Here we describe the design of the recording system in detail. The building blocks of the system include multi-channel amplifiers, filters, and the A/D card and its control program. We hope this information is useful for other laboratories. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/29530 | 其他識別: | 892320B002138M08 | Rights: | 國立臺灣大學醫學工程學研究所 |
顯示於: | 醫學工程學研究所 |
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892320B002138M08.pdf | 60.48 kB | Adobe PDF | 檢視/開啟 |
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