A roll connector is provided with: a light-emitting body and a light-receiving body, the roll connector communicates data between the fixed part and the rotating part by optical communication of the light-emitting body and the light-receiving body; angle sensors provided to the fixed part and/or the rotating part and detecting a relative rotation angle; and a control unit for determining, on the basis of a received optical signal, the data included in the received optical signal. The control unit executes at least one of: changing, according to the relative rotation angle, the data information compared with the received optical signal; correcting the quantity of radiated light according to the relative rotation angle so that the quantity of received light is constant; and correcting the signal level of the received optical signal according to the relative rotation angle so that the signal level of the received optical signal is constant.
ROLL CONNECTOR
2019-01-24
Patent
Elektronische Ressource
Englisch