fig1
Figure 1. Architecture of the multi-channel PPG array with CF regulation. (A) Structural configuration; and (B) sensor pin information, arrangement, and data transmission workflow. PPG: photoplethysmography; CF: contact force.
Figure 1. Architecture of the multi-channel PPG array with CF regulation. (A) Structural configuration; and (B) sensor pin information, arrangement, and data transmission workflow. PPG: photoplethysmography; CF: contact force.
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