| Summary: | 碩士 === 國立臺灣大學 === 電機工程學研究所 === 87 === A computer-based 16-channel digital electroencephalogram (EEG) machine system has been designed and developed. The system includes preamplifiers, filters, software-controlled gain amplifiers, digitizing and control circuitry, and optical coupling to a PC. In software part, we use Borland C++ Builder to design and develop a graphic user interface (GUI) under Windows 95/NT operational system.
Digital EEG techniques have grown rapidly in popularity for recording, reviewing, and storing EEG. Digital EEG recordings are flexible in the way they display the EEG tracings, unlike analog paper EEG. Montage, filter, and gain settings can be changed retrospectively during record review. The digital signal allows for measurement and computations on the EEG, leading to applications such as power spectrum, topographic mapping, and spike or seizure detection.
We finish a small, flexible and low-cost data-acquisition EEG system whose performance substantially exceeds that of the large and expensive commercial systems. The system is friendly and easy to use. It provide useful tools for the study and analysis about EEG.
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