METHODS AND APPARATUS FOR MAGNETIC SENSOR HAVING AN INTEGRATED COIL OR MAGNET TO DETECT A NON-FERROMAGNETIC TARGET

摘要

Methods and apparatus for detecting a magnetic field include a magnetic source configured to provide a magnetic field to induce an eddy current in a non-ferromagnetic target, and a magnetic field sensing element configured to detect the magnetic field as a result of the eddy current. The magnetic field provided by the magnetic source can be a static (i.e. DC) field or a changing (i.e. non-DC) field.