| 摘要 |
A magnetic field detector and a manufacturing method thereof are provided to accurately detect a magnetic field at a constant sensitivity by maintaining magnetic anisotropy characteristics of respective magnetic bars. A magnetic field detector includes at least one core group(110,115), an exciting coil(140), and a detecting coil(150). The core group forms one magnetic field detecting axis and includes plural magnetic cores, which are arranged on a substrate with a predetermined spacing. The exciting coil is formed on the substrate to be wound around the magnetic cores. The exciting coil excites the magnetic cores. The detecting coil is formed on the substrate to be wound around the magnetic cores and detects a magnetic field variation in the magnetic core. |
