| 摘要 |
<p>PCT No. PCT/GB86/00658 Sec. 371 Date Aug. 17, 1987 Sec. 102(e) Date Aug. 17, 1987 PCT Filed Oct. 24, 1986 PCT Pub. No. WO87/02809 PCT Pub. Date May 7, 1987.A coin validation device includes a channel which defines a first axis. A pair of magnetic cores is located on opposite sides of the channel. The cores are substantially the same size and each is E-shaped so as to define a central leg and two outer legs extending towards the corresponding legs of the other core in a direction substantially parallel to a second axis. The central leg of one core supports an exciting coil. The central leg of the other core supports a detector coil. The outer legs of each core are spaced apart in a direction perpendicular to the length of the channel along a third axis. The first, second and third axis are mutually perpendicular.</p> |
