Remove brushes and short the ring together with a copper link in case of a slipring motor (wound rotor).
若是滑环式电动机(绕线转子)，去除电刷，和铜环连在一起使滑环短路。
2
Using resistance strain gage, dynamic pressure sensor, slipring and tape recorder, the blade vibration strain and exit pressure signals of rotor blades are recorded and then processed.
There are not only magnetical connection but also direct connection of electricity between stator and rotor windings of the doubly fed slip-ring generators.