This instrument is designed to measure, compute and analyse the triphase voltages and currents, without mechanical characteristic, temperature, noise and magnetic field etc.
论文设计的装置主要完成对电机三相电压电流等电参数的测量、计算和分析，而不涉及对电机的机械特性、温度、噪声、磁场等测量。
The result show that the system possesses the features of simple structure and excellent control characteristics etc without detecting the slip frequency of the rotor's magnetic field.
结果表明：不检测转子磁链的滑差频率矢量控制系统具有结构简单、控制性能优良等特点。
This paper derives the mathematical express on of the pressure of vacuum arc subjected to an axial magnetic field under stationary model and the assumption of local thermodynamic equilibrium etc.
本文在稳态模型和局域热力学平衡等假设下，推导了在纵向磁场下真空电弧压力的数学表达式。
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