研究了非正弦振动发生装置。
文中指出了非正弦平均功率的计量标准丞待建立。
It indicated that the test standard of nonsinusoidal average power must be set up urgently.
本文讨论了非正弦电磁波辐射所面临的部分问题。
This paper deals with some problems involved in nonsinusoidal electromagnetic waves radiation.
介绍了非正弦周期电流电路的平均功率测量原理。
The measurement principle of the average power for non sinusoidal period current circuit is introduced in this paper.
非正弦电路的无功测量是当前电力测量研究的热点。
Reactive power measurement of non-sinusoidal circuit is the hot-spot research in Electric power System.
非圆齿轮;节曲线;非正弦振动;串联齿轮;
Noncircular gear Pitch curve Non-sinusoidal oscillation Serial gears;
非正弦电路无功功率及瞬时无功功率尚无统一的定义。
Then the definitions of average and instantaneous reactive power based on Hilbert transforrnation for non-sinusoidal circuit are presented.
非线性负载会形成非正弦电流,如方波,其中包含谐波成分。
The nonlinear load will draw a nonsinusoidal current, such as a square wave, which contains harmonic components.
该方法也适用于其他非正弦供电电机的场路耦合有限元分析。
The element analysis about the coupling problem of control circuit and field is...
还指出了在非正弦周期性激励下,可结合“谐波分析”运用此法。
Furthermore, that the method may be used for non-sinusoidal periodic excitation is indicated.
结晶器非正弦振动是实施高拉速连铸和提高铸坯质量的关键技术。
Nonsinusoidal oscillation of continuous casting mold is one of the key technologies for high speed casting with high quality.
适当降低振频,增大振幅和非正弦振动因子可抑制表面裂纹形成。
The surface cracks formation can be restrained by decreasing oscillation frequency and increasing amplitude and nonsinusoidal oscillation factor properly.
谐波理论分析对于非正弦交流电路的研究具有重要的理论和实际意义。
The analysis of modulation wave theory has very important theoretical and actual meaning for studying non sine alternating current.
在半板簧结晶器振动试验装置上,模拟了小方坯连铸机的非正弦振动。
The non-sinusoidal mould oscillation of machine was simulated at a half plank spring mould tester. The …
在半板簧结晶器振动试验装置上,模拟了小方坯连铸机的非正弦振动。
The non-sinusoidal mould oscillation of machine was simulated at a half plank spring mould tester. The developed hydrauli…
近年来,国内外采用液压式非正弦振动结晶器,实现了连铸生产的自动化;
In recent years, The Hydraulic-Servo mould is applied in the world, realized product line's automation for continuous metal cast.
DC开关变换器非线性程度很高,输入电流为非正弦形式,功率因数极低。
AC/DC switching converters are highly nonlinear. Therefore they draw a non-sinusoidal current with a very low power factor.
非正弦电路中,有功功率定义已被公认,无功功率的定义却一直还没有定论。
The active power definition is well accepted, but the reactive power definition is still questionable in non-sinusoidal condition.
对非正弦变化的负载阻力矩的平衡也可应用本设计的优化方法,有推广价值。
The optimization design method can also be used in the balance of non-sinusoidal changing load resistance moment and has important value of application popularized.
建立了椭圆齿轮驱动的结晶器非正弦振动系统动力学模型,推导了动力学方程。
The dynamics model of non-sinusoidal vibration system of crystallization utensil driven by elliptical gears was established, and its dynamics equation was derived.
然而,如果相位的变化是非线性的,那么对非正弦信号会产生严重的相位失真。
However, if the phase change is non-linear, then the non-sinusoidal signals will have a serious phase distortion.
即使在三相正弦激励的作用下,三相线电流也将发生非正弦畸变,产生谐波电流。
Even if it worked with three-phase sine, three-phase line current would have non-sine aberrance and produce harmonic wave-electricity.
讨论了变频电源输入电压的非正弦对测功电机的性能影响,提出改善不利影响的措施。
In this paper, the functional influence of input voltage non-sine of Varible-frequency voltage source on Electric Power Dynamometer motor discussed. and methods of improving them were also given.
结晶器非正弦振动形式增加结晶器振动的基本参数,突破结晶器正弦振动参数的取值限度。
The development of non-sinusoidal oscillation of mould expands the basic parameters of mould oscillation, and surmounts the limit of oscillating parameters range for sinusoidal oscillation .
给出了一种用于连铸生产的非正弦振动波形,并对其波形参数和振动工艺参数进行了讨论。
A waveform of non sinusoidal oscillation for continuous casting is given. The relations between the waveform parameters and oscillation process parameters are discussed.
结果表明,这种非正弦振动波形具有较好的拉坯速度适应范围,能够满足连铸生产的要求。
The results show that the waveform is suitable for a broad casting speed range and can meet the need of continuous casting production.
然后从理论上研究了电流传感器测量误差和非正弦磁场分布对永磁同步电机转矩波动的影响。
Then, the effects of current sensor measurement error and non-sinusoidal magnetic field distribution on motor torque fluctuation are theoretically investigated.
例如,电弧炉就是一种非线性负荷,因为加上正弦电压后,它将形成非正弦电流(大量谐波)。
For example, an arc furnace is nonlinear since it will draw a no sinusoidal current (rich in harmonic's) when a sinusoidal voltage is applied.
电机传动系统大都采用变频器供电,输出的是非正弦电压、电流,其在电机中产生非正弦磁场。
The motor drive system almost all use inverter supply power, which output non-sinusoidal voltage-current and produce non-sinusoidal electromagnetic field.
该装置用真有效值电路检测非正弦焊接电流值,用中断和定时计数器实现了可控硅的精确触发。
The measuring circuit for RMS of non-Sin welding current and the precise triggers of SCR using interrupt controllers and timers in AduC812 MCU are also described.
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