Electrodes function as conductive interfaces and are generally classified into wet and dry types. While wet electrodes are widely used in physiological signal acquisition, their reliance on conductive gels makes them unsuitable for long-term applications. In contrast, dry electrodes offer a promising alternative for extended monitoring; however, commercially available options are often expensive and less accessible. In this study, we designed and fabricated a cost-effective dry electrode using a sintering-based manufacturing method and selected conductive materials. The proposed electrode was evaluated in various physiological signal acquisition experiments and compared to a standard wet electrode from the OpenBCI brand. Experimental results demonstrate that the fabricated electrode provides an economically viable solution without compromising signal quality, making it suitable for prolonged physiological monitoring.
