| 摘要 |
PCT No. PCT/DE91/00040 Sec. 371 Date Jul. 20, 1992 Sec. 102(e) Date Jul. 20, 1992 PCT Filed Jan. 16, 1991 PCT Pub. No. WO91/10879 PCT Pub. Date Jul. 25, 1991.A position sensor has a ring of a material of high permeability that is floated on a liquid within a hermetically sealed toroid, so as to hold the ring in a horizontal position. Exciting coils are distributed uniformly about the ring to enclose the cross section thereof, and receiving coils are distributed uniformly about the circumference of the ring.
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