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ELECTRODES FOR BIOPOTENTIAL MEASUREMENT, BIOPOTENTIAL MEASURING APPARATUS, AND BIOPOTENTIAL MEASURING METHOD
ELECTRODES FOR BIOPOTENTIAL MEASUREMENT, BIOPOTENTIAL MEASURING APPARATUS, AND BIOPOTENTIAL MEASURING METHOD
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机译:用于生物电势测量的电极,生物电势测量设备以及生物电势测量方法
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摘要
A biopotential can be measured with high accuracy without the electrodes coming into direct contact with the skin and without being affected by any motion artifact. The present invention comprises a first lead which detects a biopotential containing noise components, a second lead which is electrically isolated from the first lead and detects noise components, and a differential amplifier circuit which is input with a first signal output from the first lead and a second signal output from the second lead, and which amplifies and outputs a difference between the first signal and the second signal, wherein a value of an input impedance on the second signal side of the differential amplifier circuit is set so that the noise components detected from the second lead will have a frequency that is higher than a frequency spectrum of the biopotential.
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