[KongchangAI]
Unverified50% confidenceFactExact time

Apple Watch使用光电容积脉搏波描记法(PPG)传感器监测心率,通过绿色LED灯照射手腕皮下毛细血管,利用血红蛋白对绿光的吸收特性计算实时心率

1
Sources
50%
Confidence
Long-term
Relevance
9/5/2026
First Seen

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