Sensors | 卷:20 |
3D Printable Dry EEG Electrodes with Coiled-Spring Prongs | |
Nozomu Araki1  Shintaro Nakatani2  Masaya Kimura2  Shin-Ichiro Nishida2  Daiju Taketoshi3  | |
[1] Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2201, Japan; | |
[2] Graduate School of Sustainability Science, Tottori University, 4-101, Koyama-cho Minami, Tottori 680-8552, Japan; | |
[3] Technical Department, Tottori University, 4-101, Koyama-cho Minami, Tottori 680-8552, Japan; | |
关键词: electroencephalography (EEG); dry electrode; 3D printing; coiled spring; stereolithography (SLA); | |
DOI : 10.3390/s20174733 | |
来源: DOAJ |
【 摘 要 】
Various dry electroencephalography (EEG) electrodes have been developed. Dry EEG electrodes need to be pressed onto the scalp; therefore, there is a tradeoff between keeping the contact impedance low and maintaining comfort. We propose an approach to solve this tradeoff through the printing of complex-shaped electrodes by using a stereolithography 3D printer. To show the feasibility of our approach, we fabricated electrodes that have flexible fingers (prongs) with springs. Although dry electrodes with flexible prongs have been proposed, a suitable spring constant has not been obtained. In this study, the spring constant of our electrodes was determined from a contact model between the electrodes and the scalp. The mechanical properties and reproductivity of the electrodes were found to be sufficient. Finally, we measured the alpha waves when a participant opened/closed his eyes by using our electrodes.
【 授权许可】
Unknown