Catenary controller

专利名称：Catenary controller发明人：Ralph E. Frazee, Jr.申请号：US06/040026申请日：19790518公开号：US04195791A公开日：19800401

摘要：A CCTV camera 32 monitors the sag of a loop of optical fiber 11 extendingbetween a drawing mechanism 12 and a takeup spool 18. The camera is rotated 90° aboutits optical axis so as to vertically scan the plane of the fiber catenary and forward thevideo scan signal to a video signal processor 28. The processor continuously determinesthe displacement of the lowest point of the loop from an optimum position and

generates an electrical signal proportional thereto. The signal is forwarded to a spoolingmotor 19 to adjust the speed of the takeup spool to cause the fiber catenary to returnto a predetermined position.

申请人：WESTERN ELECTRIC CO INC

代理人：D. J. Kirk

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