A team of scientists has developed a powerful new way to detect subtle magnetic signals in common metals like copper, gold, and aluminium—using nothing more than light and a clever technique. Their ...

Hall sensor is made based on Hall effect. Because of electric field, semiconductor interior conducts. When exterior magnetic field exists, Lorentz force compels originally directional moved electron ...

In this article, a 3-D displacement sensor system based on a Hall chip array and its signal-resolving algorithm is proposed for bearingless motors. The theoretical analysis of the magnetic field ...