USB-based 256-channel electroencephalographic data acquisition system for electrical source imaging of the human brain

Date

2007-05-01

Author

Usakli, A. B.
Gençer, Nevzat Güneri

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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A 256-channel electroencephalographic data acquisition system is designed for electrical source imaging of the human brain. The system is microcontroller based, dc-coupled, battery powered, and uses a universal serial bus for communication. An analog to digital converter of 24-bit sigma-delta technology with a sampling rate of 140 Hz and the number of effective bits in conversion is 18, corresponding to a dynamic range of 108 dB. Data is transferred via USB at the rate of 1 Mbyte/sec. The common mode rejection ratio of the system is measured as 102 dB. The performance tests and recorded experimental data show that the developed system can be used in conducting human brain source localization experiments.

Subject Keywords

Instrumentation, General Chemical Engineering, General Environmental Science

URI

https://hdl.handle.net/11511/40663

Journal

INSTRUMENTATION SCIENCE & TECHNOLOGY

DOI

https://doi.org/10.1080/10739140701255581

Collections

Department of Electrical and Electronics Engineering, Article

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Citation Formats

A. B. Usakli and N. G. Gençer, “USB-based 256-channel electroencephalographic data acquisition system for electrical source imaging of the human brain,” INSTRUMENTATION SCIENCE & TECHNOLOGY, pp. 255–273, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40663.