altenating displacement

This article introduces the characteristic and function of AC-AC frequency conversion vector control system used in main driving motor in the CSP finishing mill,and expatiates the basic theory of AC-AC frequency conversion vector control.

文章介绍了薄板坯连铸连轧精轧机主传动电机应用交-交变频矢量控制系统的原因和特点,阐述了交-交变频矢量控制的基本原理,是一种高性能的控制方式,在现代化生产中具有重要意义。

Formation and control of turbulent in metal melts purified by alternating magnetic field;

交变磁场净化金属液时金属液紊流的形成及其控制

Measuring alternating magnetic field and permeability of vacuum by oscillograph;

用示波器测交变磁场及真空磁导率

The study of heat effect of magnetic fluids under an alternating magnetic field;

磁流体在交变磁场中的热效应研究