发明公开
EP0089821A2 Detector device for a conveyor 失效
用于传送检测装置。

Detector device for a conveyor
摘要:
A detector device for detecting the passage of articles of a conveyor comprises an energy source element 8, an energy responsive element 10 and reflector means 27, 9 and 28, positioned so that a beam of energy from the source element 8 to the responsive element 10 first traverses the conveyor path substantially parallel and close to the conveyor surface and is then reflected back and fourth across the conveyor path in a plane substantially perpendicular to the conveyor surface.
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