| 摘要 |
PCT No. PCT/CH91/00141 Sec. 371 Date Mar. 16, 1992 Sec. 102(e) Date Mar. 16, 1992 PCT Filed Jun. 26, 1991 PCT Pub. No. WO92/00505 PCT Pub. Date Jan. 9, 1992.The sensor comprises a field coil generating a time-variant magnetic field, and sensor coils arranged inside the field coil, a rotatable device being arranged for modulating the magnetic flux passing through the sensor coil according to its angular position. Each sensor coil comprises a magnetically permeable core having a polar portion facing the rotatable device. A portion of a magnetically permeable sealing element is arranged facing the rotatable device on the opposite side from said polar portion. The air gaps between said polar portion and rotatable device, and between said portion of the sealing element and said rotatable device, are wholly located substantially within the field coil.
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