| 摘要 |
PURPOSE:To obtain a magnetic sensor easy to assemble and large in the connecting strength between a bias magnet and a magnetic sensor element by arranging a groove having a magnetic sensor element at one end and a bias magnet having a mount section with a terminal of a specific shape pinching the bias magnet and said element. CONSTITUTION:A mounting hole 2 is provided at one end of a biased magnet 1 formed like L and a fitting groove 3 is provided on a side thereof cut from the end thereof to fit a magnetic sensor element 4 thereinto 3. In the element 4, a thin film which varies in the resistance value by magnetism of NiFe alloy or the like is provided on the surface of a substrate 5 made of glass or the like and then, sensing sections 6A and 6B, a conductor section 6C and terminal sections 7A, 7B and 7C are formed by etching or the like. The sensing section and the conductor section are covered with a thin insulating protective film 8 made of SiO2 or the like. Then, a U-shaped bend 10 is formed at one end of a L-shaped terminal 9 blanked from a metal plate to grasp the magnet 1 and the element 4. The tip of the bend 10 and the terminals 7A, 7B and 7C are soldered separately. This provide a sensor which is large in the connection strength and easy to assemble while being disposed sufficiently close to a magnetic field generator or the like. |
