To measure the magnetic field distribution, a multi-layer cascadable PCB hollow coil sensor is realized. The AC excitation current source, 8-channel control circuit, lock-in amplifier circuit and ...

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In addition, Verizon has launched flood sensor technology and partnered with organizations like MIT Solve and United Way to enhance disaster preparedness and recovery in vulnerable communities.

To address this challenge, a 3-D positioning method for the embedded receiving coil based on a decoupled transformer is proposed. The decoupled transformer consists of two helical coils and one planar ...