| 摘要 |
The invention concerns a system for automatically identifying objects being transported on a moving conveyor (20) comprising a detection member, each object being provided with an electronic label. The invention is characterised in that the detection member consists of a rotary field antenna (110) consisting of two loops (B>1<, B>2<) located in the same plane and coupled in phase quadrature over an overlapping zone, the antenna (10) being generally rectangular in shape and located in a plane parallel to the conveyor (20). In another embodiment, the antenna (10) can further be oriented such that its axis of symmetry (105) forms an angle ( alpha ) with the displacement axis (25) of the conveyor (20).
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