Unverified50% confidenceFactExact time
霍尔效应由物理学家埃德温·霍尔于1879年发现，霍尔效应摇杆通过永磁体和霍尔传感器无接触输出位置信号，消除机械磨损
1
Sources
50%
Confidence
Long-term
Relevance
7/16/2026
First Seen
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