| 摘要 |
PURPOSE:To obtain a good digital signal output even under weak detection signal input by a device wherein a magnetic reluctance element and a biasing magnet are integrally mounted on a wave form shaping circuit substrate. CONSTITUTION:An overall detection device including a biasing magnet 2 on which magnetic reluctance elements M1, M2 are inserted through an opening formed in a wave form shaping circuit substrate 4 is secured to the board 4 with adhesives 7. Respective terminals of the magnetic reluctance elements M1, M2 are connected with other electrically with conductors 5 formed on the wave form shaping circuit substrate 4 and lead wires 6. Each conductor 5 is disposed and wired on the substrate 4 as short as possible and led to an input terminal of a comparator. By so doing, influence of noises from the exterior is made very small and hence good digital signal output can be obtained even under weak detection signal input. |
