交流电

The electro-magnetic microgenerator utilizes a moving magnet or coil for inducing an alternating electric current in a circuit.

微型磁发器以移动中的磁铁或线，路中制造出感应交流。

AC Milliammeter, Model J0414, is suitable for the laboratories of middle schools and polytechnic schools to measure current intensity in the AC circuit.

J0414型交流毫安表适用于中学、中专等实验室测量交流路中的流强度。

The result shows that CJD alternating current electrodynamometer has simple structure and the energy feedback efficiency can reach 74%, with outstanding energy-saving effect, good control stability.

运行结表明，该CJD交流力测功机控制性能稳定，可靠性好，节能著，能量反馈率最高可达到74%。