SICK Encoders Position Wimbledon Roof Critical to the operation of the roof over Wimbledon's Centre Court is the accurate positioning provided by linear encoders from SICK for each of the 10 77m long, 100-tonne roof trusses. Engineered, manufactured and assembled by specialist hoist and crane designers Street Crane Xpress for the All England Lawn Tennis Club and its main contractor Galliford Try, the roof trusses run on 80m tracks either side of the court roof. Each truss has a SICK KH53 encoder read head mounted at either end, which monitors the truss position and progress across the roof from the KH53's magnetic measurement scale alongside the running track. They are moved by electric motors on either end of each truss, powered from a bus bar system running the length of the track. In addition, to the linear encoders, SICK supplied SRM50 Hiperface absolute rotary encoders to monitor the rotational positioning of each motor. The motors move the 10 trusses across the roof b...
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