| 摘要 |
In oder to eliminate loss of milk by spilling at the end of milking, where teatcups (10) are removed from teats, the falling-off of teatcups is sensed and a falling-off signal is created, which is used for controlling a vacuum valve (19) and returning vacuum soon after the teatcups have fallen off. A strong air stream will then stop milk falling off, even if the teatcups turns over. The sensing may be made by sensing the teatcup reaching a predetermined level (L), by accelerometer (20) or by a pressure sensor (21).
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