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Chinese scientists develop sensitive magnetic sensor for smartwatches

Chinese scientists have developed a highly sensitive Hall-effect magnetic sensor, small enough to fit in a smartwatch, capable of detecting faint magnetic fields. This breakthrough, published in Physical Review Letters, overcomes a long-standing trade-off between sensitivity and noise in such sensors. The technology could potentially enable devices like smartwatches to detect submarines from up to 500 meters below the surface. AI

RANK_REASON Research publication detailing a new technological development. [lever_c_demoted from research: ic=1 ai=0.1]

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Chinese scientists develop sensitive magnetic sensor for smartwatches

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COVERAGE [1]

  1. SCMP — Tech TIER_1 English(EN) · Zhang Tong ·

    Chinese magnetic sensor breakthrough may help smartwatch detect submarine 500 metres deep

    Picture a fisherman hauling in his nets on a calm morning at sea, when his smartwatch suddenly vibrates with an alert: “Magnetic anomaly detected – possible submarine passing 500 metres below.” Far‑fetched as it sounds, Chinese scientists have just taken a decisive step towards m…