frequency vector的例句大全

The vector Control Variable Frequency Speed Regulating system for NC Machine Tool

数控机床主轴矢量控制变频调速系统

Research and Design of Asynchronous Motor Vector Control Variable Frequency Speed Regulating System

异步电机矢量控制变频调速系统的研究与设计

The vector Control Variable Frequency Speed Regulating system for NC Machine Tool

数控机床主轴矢量控制变频调速系统

Based on heterodyne and vector analysis theories, origins and modes of the frequency mixing error and phase jump error were analyzed. On the above basis, procedures to improve the accuracy of the measurement system were suggested.

利用激光外差及矢量分析理论，深入研究了频率混叠误差和相位跳变误差的成因、变化规律，并讨论了提高测量系统精度的有效措施。

On the other hand, the mixed modulation algorithm uses the five-segment modulation algorithm and the characteristic quadrangle to approximate the reference vector which can reduce the switching frequency. Finally, a three-cell seven-level inverters experiment platform is set up.

另一方面，混合调制算法利用特征四边形法和五段算法逼近参考矢量减少了开关切换频率。

Vector Control System Based on the Cooperating Control Principles of Frequency Modulation and Voltage Regulation

基于调频调压配合控制原理的矢量控制系统

In this paper, according to the equation of voltage vector of single-phase motor operating at symmetrical condition, author presents a new voltage-vector PWM method of variable frequency control for single-phase motor. In system, the voltage vector is used as a control parameter.

本文根据单相电动机对称运行时的合成电压矢量方程，提出了以合成电压矢量为控制量的单相电动机电压矢量式PWM变频调速控制方法，并进行了计算机仿真及制作了单相变频器。

Car dumper driver frequency control system constitutes a programmable logic controller, the AFE rectifier feedback device, vector inverter, drive motor, speed sensor, PC, and control cabinet.

翻车机驱动变频调速控制系统由可编程逻辑控制器、AFE整流回馈装置、矢量逆变器、驱动电动机、速度传感器、上位机以及控制柜等构成。

Natural Frequency of Torsional Vibration of Rotary Vector Reducer and Its Influencing Factors

RV减速机的扭转振动的固有频率及其主要影响因素

Modeling and Simulation Based on Variable Frequency Regulation Speed System of Rotor Linkage Vector Control

基于转子磁链矢量控制变频调速系统的建模与仿真

Research of Digital Vector Control in Frequency control System Based on DSP and IPM

数字信号处理器和智能功率模块在矢量控制变频调速中的应用

Using vector Markov process theory and Laplace transform method, we obtain the Laplace transform of the reliability, the mean time to first failure, the steady-state availability and the steady-state failure frequency and so on.

利用向量Markov过程理论和Laplace变换的方法，求出了系统可靠度的Laplace变换，系统首次故障前平均时间的表达式，系统的稳态可用度和稳态故障频度等可靠性指标；

research and analysis results showed that: in the low frequency range, for the four-stroke six-cylinder engine, thrice main harmonic vector should be considered as the main motivation for torsional vibration.

研究分析结果显示：在低阶频率范围内，对于四冲程六缸发动机，三次主谐量是扭转振动需要考虑的主要激励。

diagnostic way study of rotating machine fault based on vector frequency and d-s theory

基于矢谱和D-S理论的旋转机械故障诊断方法研究

vector control theory of ac frequency conversion and its application in high-speed paper machine

高速纸机的交流变频矢量控制

Wideband FM signal occupies a wide band in frequency domain and has a time-varying direction vector.

宽带调频信号(FM)作为具有宽频带和时变方向向量的非平稳信号,其到达角的估计具有较大的难度.

The moving vector of object can be confirmed when acoustic-optic modulator ( AOM ) introduces a frequency offset.

通过声光 调制器 的偏频后,能够确定物体的运动方向.

Error voltage vector generated by dead-time, switching devices turn-on and turn-off time are introduced. Weakening methods that consist of decreasing carrier frequency and decreasing direct current bus voltage are educed.

给出因死区时间和开关器件开通、关断时间引起的误差电压矢量，依据误差电压矢量的表达式，采用降低载波频率和减小直流母线电压的方法削弱死区效应。

But the frequency of recombination was very low ( 0.1%-1%) and it limited further application of the baculovirus expression vector system ( BEVS).

但由于重组病毒产生的比例很低（通常只有01%～1%），成为制约该系统应用的技术瓶颈。

The application of the digital selected frequency and automatic follow the tracks technique in FHD vector proton magnetometer

数字化选频与自动跟踪技术在分量核旋仪中的应用