Method for determining rotation angle of rotor-stator device, and slip ring arrangement

A method and a device are for determining the rotation angle of a rotor-stator device. The rotor-stator device has a slip ring arrangement for transferring data between rotor and stator. In an embodiment, the device includes a signal conductor, essentially ring-shaped or ring-segment-shaped, fixed to a ring-shaped support structure; a transmitter for injecting a data signal into the signal conductor; and a receiver for reading the data signal out from the signal conductor. The transmitter and receiver move in opposite directions synchronously with the rotation between rotor and stator. According to an embodiment of the method, a signal is injected into the signal conductor. The signal is used to generate a metrologically detectable characteristic from which the rotation angle is ascertained. 提供了种用于确定个转子-定子设备(2)的旋转角度(α)的方法和设备。转子-定子设备(2)具有用于在转子(11)和定子(10)之间传输数据的个滑环装置(15)，其包括：个长信号导线(21)，基本上是环形或环段形的并固定在环形支撑结构(20)上；个发射器(22)，用于将个数据信号(D)注入到信号导线(21)中；以及个接收器(23)，用于从信号导线(21)读出数据信号(D)，其中发射器(22)和接收器(23)与转子(11)和定子(10)之间的旋