Key result
A novel two-wired active electrode achieved an input capacitance of 71 fF and a common mode rejection ratio above 103 dB at 50 Hz, validating its use for ECG and EEG measurements.
Comparison
Two-wired ultra-high input impedance active… vs Traditional alternative electrode
Design
Other
Authors
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Hypothesis-generating for simplified high-fidelity biopotential electrodes; leaves open clinical validation before practice adoption.
The proposed two-wired active electrode provides a low-complexity, low-cost solution for high-fidelity biopotential measurements such as ECG and EEG.
Guerrero et al. (2018) studied this question. Two-wired ultra-high input impedance active electrode vs. Traditional alternative was evaluated on Input capacitance and Common mode rejection ratio (CMRR). A novel two-wired active electrode achieved an input capacitance of 71 fF and a common mode rejection ratio above 103 dB at 50 Hz, validating its use for ECG and EEG measurements.
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