It is very necessary to make sure that the carbon brushes stay in good contact with the commutator. 确定一下碳刷与换向器是否保持良好的接触,是非常必要的。
This configuration would eliminate the need for the sparking commutator. 这种组合不需用到会产生火花的整流子。
Tesla suggested that it might be possible to design a motor without a commutator. 电刷整流子是一种铜线制造的电流接点,在线圈每转一圈时,它会使电流反转两次,造成方向相反的磁场,让马达不断转动。
commutator
[ noun ] switch for reversing the direction of an electric current <noun.artifact>
Commutator \Com"mu*ta`tor\, n. (Elec.) A piece of apparatus used for reversing the direction of an electrical current; an attachment to certain electrical machines, by means of which alternating currents are made to be continuous or to have the same direction. It may be attached to the end of the spindle of an electric motor, where a brush is in contact sequentially with the parts of the spindle that conduct current to the different windings of the motor. [1913 Webster +PJC]