1) four quadrant operation
四象限运算
2) four-quadrant operation
四象限运行
3) four-quadrant
四象限
1.
A novel four-quadrant cascade multi-level inverter topology is proposed.
提出一种可四象限运行的新型级联型多电平逆变器拓扑。
2.
The main specialities and functions of wide spectrum four-quadrant seamless detector UV-14BQ-4 produced by EG&G company are introduced.
介绍EG&G公司生产的宽谱段无缝四象限光电探测器UV-14BQ-4的主要特性和功能,给出UV-14BQ-4在激光束定位系统中的应用实例。
3.
Traditional four-quadrant cascade multi-level inverter (FCMI) that consisted of a few four-quadrant power cells needs so many sensors and filter inductors that makes the system volume and cost increase remarkably.
传统四象限级联型逆变器由多个四象限电压胞组成,需要大量电量传感器及滤波电感,造成系统体积和成本显著增加。
4) 4-quardant
四象限
1.
Research of 4-quardant Rectifier for Electric Locomotive Based on SVPWM;
基于空间电压矢量的电力机车四象限整流的研究
2.
Electric locomotive system mainly concentrated on 4-quardant rectifier is stated.
本文介绍了四象限整流器为核心的电力机车系统,阐述了四象限整流器的运行原理及控制电路设计,提出一种简单的电压空间矢量算法,该算法根据参考电压直接计算位置和作用时间,从而大大简化了计算。
5) 4-quadrant
四象限
1.
4-quadrant Control of the Permanent Magnet Brushless DC Motor for Elevator;
电梯拖动用永磁无刷直流电动机的四象限运行控制
2.
According to the characteristic of city railway vehicle,a rare-earth permanent magnet brushless DC motor of 4-quadrant control is developed.
根据城市轨道车辆的使用特点,研究探索牵引用稀土永磁无刷直流电机的四象限运行控制。
6) four quadrants
四象限
1.
Through the analysis of traditional four quadrants angle measurement algorithm,an accurate and quick tracking algorithm to Air launched Armanent is illustrated and analysed in this paper.
通过对传统四象限测角算法误差的分析 ,提出了一种用于机载武器的四象限测角的高精度快速跟踪算法 ,并对其进行了分
2.
It has been proved by experiment that the traditional Angle measurement algorithm of the detector with four quadrants is of big measurement error.
实验结果表明 ,传统的四象限探测仪测角算法具有较大的误差。
补充资料：四象
中国易学范畴。《周易·系辞上》说："两仪生四象,四象生八卦。"又说"易有四象,所以示也"，"揲之以四，以象四时"。筮法说揲蓍求卦以四四为数，经过四个程序,象征春夏秋冬四时,故称其为"四象"。随着易学的发展，对四象的解释也各不相同。东汉郑玄以筮数七、八、九、六为四象；三国时虞翻以坎、离、震、兑四卦为四象；唐代孔颖达以金、木、水、火四行为四象；宋代邵雍则以太阳(匉)、太阴(匴)、少阳(刯)、少阴(刱)为四象,朱熹亦持此说;明末清初王夫之以乾（三阳）、坤（三阴）、震坎艮（二阴一阳）、巽离兑（二阳一阴）为四象。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条