本文描述一台能改变光频移频率的新装置，它由旋转光栅、同步电机和调频电源组成。
A new device which can change the optical frequency shift is described. It consists of a rotating grating, a synchro motor and a power supply whose frequency can be adjusted.
或者洗涤波轮和减速装置同步旋转，实现洗衣机脱水功能。
Or the washing impeller and the reduction gear are in synchronous rotation, thus the dehydration function of washing machine is achieved.
本发明的可旋转电力电子变换器同步电机励磁装置能为同步电机提供稳定可调的直流励磁，可大大提升同步电动机调速系统的竞争力。
The disclosed excitation unit of rotatable electronic converter supplies stable adjustable dc excitation for synchro motor, promoting competitive power of speed control system of synchro motor.
本发明的可旋转电力电子变换器同步电机励磁装置能为同步电机提供稳定可调的直流励磁，可大大提升同步电动机调速系统的竞争力。
The disclosed excitation unit of rotatable electronic converter supplies stable adjustable dc excitation for synchro motor, promoting competitive power of speed control system of synchro motor.
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