| 摘要 |
A device for determining the spatial position of an animal's teat having a first transmitter element for emitting a first ray or beam of rays in a first sub-area of a space which includes the presence of the teat, and a second transmitter element differing from the first transmitter element for emitting a second ray or beam of rays in a second sub-area in such space, the first sub-area and the second sub-area overlapping by a few degrees where the join. A first receiver element receives a reflection of the first ray or beam of rays and a second receiver element differing from the first receiver element receives a reflection of a second ray or beam of rays. A mirror having reflections or both of the rays or beams of rays from the transmitter elements. At least three of the reflective sides of the mirror have different angles relative to the axis of rotation so that the teat is essentially simultaneously detected at different levels, the location of the teat in general and its disposition at the different levels being determined by triangulation.
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