| 摘要 |
In a torque sensor of a noncontact type, a pair of amorphous magnetic ribbons (12, 13) are bonded to a shaft (11) to which a rotary torque is applied. A pair of coils (28, 29) are wound around the shaft (11) and an alternative magnetic field is applied from the coils (28, 29) to the magnetic ribbons (12, 13) along the axis of the shaft (11). A permanent magnet (23) and yokes (19, 21) are located around the shaft (11) and a bias magnetic field is also applied from the magnet (23) to the magnetic ribbons (12, 13) through the yokes (19, 21). |
