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Tiny sensors detect electrical faults in hard-to-access locations |
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Tiny sensors detect electrical faults in hard-to-access locations Joint partnership to advance global navigation satellite technologies
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Prof. Derek Or Siu-wing and his research team in the Department of Electrical Engineering have developed smart sensors of 1 mm in thickness to be placed on any sensing point of interest to detect electrical currents. Made from rare earth multiferroics with giant magnetoelectric properties, these sensor chips enable a direct detection of magnetic fields generated by electricity and a linear conversion of these magnetic fields into electrical voltage signals. The smart sensors do not necessitate the use of additional power supplies and signal conditioners which are generally required by traditional current sensors. Since they do not have power cords and electronic active components, they can be conveniently, safely and reliably used for early fault detection. Details>>
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