field orientation中文是什么意思

• 感受野定向

• "field"中文翻译    n. 1.原野，旷野；(海、空、冰雪等的)茫茫一片。 2 ...
• "orientation"中文翻译    n. 1.向东，(礼拜时)东向；置于东端。 2.(房屋等 ...
• "field-orientation" 中文翻译 :    场取向
• "orientation of sensory field" 中文翻译 :    感受野朝向
• "receptive field orientation" 中文翻译 :    感受野定向
• "visual field axis orientation" 中文翻译 :    视野轴方向
• "at the orientation" 中文翻译 :    欢迎新同事
• "orientation" 中文翻译 :    n. 1.向东，(礼拜时)东向；置于东端。 2.(房屋等)方向；找出东方；定位，定向；取向，排列方向。 3.(外交等的)方针[态度]的确定；(对周围环境等的)倾向性。 4.【动物；动物学】(鸽等的)回家本能；(对新环境的)适应。 a firm and correct political orientation 坚定正确的政治方向。 radio range orientation 无线电定向。
• "a axis orientation" 中文翻译 :    a轴取向
• "a-axis orientation" 中文翻译 :    a轴取向
• "absolute orientation" 中文翻译 :    对地定位; 绝对定向
• "achievement orientation" 中文翻译 :    成就导向型
• "acoustic orientation" 中文翻译 :    音波定向
• "action orientation" 中文翻译 :    动作的定向; 动作定向; 面向行动
• "active orientation" 中文翻译 :    主动取向
• "align orientation" 中文翻译 :    对齐方向
• "alignment of orientation" 中文翻译 :    方位对准
• "allocentric orientation" 中文翻译 :    他物中心定向
• "alternate orientation" 中文翻译 :    选用方位
• "amorphous orientation" 中文翻译 :    非晶取向; 非晶态取向
• "analytical orientation" 中文翻译 :    解析定向
• "angle of orientation" 中文翻译 :    定向角; 方位角; 取向角
• "angular orientation" 中文翻译 :    角定向; 角度方位
• "arbitrary orientation" 中文翻译 :    假定方位标定; 任意取向
• "astronomical orientation" 中文翻译 :    天文定向

• In this scheme , the torque of motor is calculated and controlled in the staler reference frame . by using stator field orientation , the optimum switching mode is achieved to control the inverter
  它直接在定子坐标系下计算和控制交流电动机的转矩，采用定子磁场定向控制，直接对逆变器的开关状态进行最佳控制。
• Secondly , to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing . the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator . thirdly , it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow . the author constructed reliable and integrated experimental system and did a series of experimental study including no - load , cutting - in network and power generation at , below and above the synchronous speed
  论文首先分析了风机运行特性及其最佳风能利用原理，通过仿真及实验验证了采用直流电机的输出特性模拟风力机的最大输出功率曲线的可行性，并给出了模拟系统的硬件结构；然后为了实现交流励磁发电机有功、无功功率独立调节机理，分析了交流励磁双馈发电机的数学模型和在追踪最大风能捕获变速恒频风力发电时必需的定子磁链定向矢量控制策略；针对双馈发电机转子能量双向流动的要求，提出并设计了具有能量双向流动能力的双pwm交流励磁用变频器；最后为实现从理论到实践的全面研究，研制出了一套小功率完整的双pwm变频器交流励磁的双馈风力发电机实验系统，进行了空载、并网、同步速及上、下的发电运行等一系列的运行实验；所完成的仿真和实验研究均验证了理论、模型和控制策略的正确性、可行性。
• The general situation and progress of magnetic dipole theoryresearch during recent twenty years in china were introduced briefly including magnetic dipole ; linear and strip magnetic dipoles of finite lengths ; magnetic force on a magnetic particle ; the effect of magnetizing field orientation on the revelation of defect by magnetic particles ; longitudinal magnetization of rod , tube and cuboid steel ; the relationship between the slot depth in a workpiece and magnetic leakage field ; the cause of stray magnetic pattern along base apex edges of a workpiece magnetized circumferentially ; the analytic expression for the magnetic leakage fields inside and outside the slot on the cylindrical surface of a disc ; and the effect of a needle - like magnetic medium on the magnetic force between two point magnetic charges
  简述20年来中国无损检测中磁偶板子理论研究的概况和进展，主要介绍磁偶极子，有限长磁偶极线和极带，磁粉颗粒的受力，磁化场方向对磁粉显现缺陷的影响，棒料、管材和方钢的纵向磁化，工件表面沟槽深度对其引起漏磁场的影响，周向磁化时工件底棱上的杂乱显示成因，圆盘边缘柱面上沟槽内外漏磁场的解析表达式和针状磁介质对两个点磁荷间磁力的影响等。
• For an ev drive system , the variation of rotor time constant will bring on variation of torque and exorbitant line voltage even the field orientation may be destroyed . the varied torque will affect ev dynamic performance , and the higher voltage will limit the output power due to the bound of batteries in ev
  对于电动汽车驱动系统来说，转子时间常数的波动会导致输出转矩和电机电压的波动，并且严重时会导致系统出现振荡，转矩的波动会影响汽车的动态性能，电机电压的波动则会由于电池电压的限制而影响电机的输出功率，这些都是电动汽车的驱动系统应该避免的问题。
• Abstract : the general situation and progress of magnetic dipole theoryresearch during recent twenty years in china were introduced briefly including magnetic dipole ; linear and strip magnetic dipoles of finite lengths ; magnetic force on a magnetic particle ; the effect of magnetizing field orientation on the revelation of defect by magnetic particles ; longitudinal magnetization of rod , tube and cuboid steel ; the relationship between the slot depth in a workpiece and magnetic leakage field ; the cause of stray magnetic pattern along base apex edges of a workpiece magnetized circumferentially ; the analytic expression for the magnetic leakage fields inside and outside the slot on the cylindrical surface of a disc ; and the effect of a needle - like magnetic medium on the magnetic force between two point magnetic charges
  文摘:简述20年来中国无损检测中磁偶板子理论研究的概况和进展，主要介绍磁偶极子，有限长磁偶极线和极带，磁粉颗粒的受力，磁化场方向对磁粉显现缺陷的影响，棒料、管材和方钢的纵向磁化，工件表面沟槽深度对其引起漏磁场的影响，周向磁化时工件底棱上的杂乱显示成因，圆盘边缘柱面上沟槽内外漏磁场的解析表达式和针状磁介质对两个点磁荷间磁力的影响等。
• In the paper , the principle and actualizing means of spatial vector control have been systemically discussed and the control software has also been designed . the magnitude of both the rotor flux and the current in torque component have been estimated by using a flux observer , which is developed based on field orientation control principle . the results show that the observer has a good feature due to its speed being calculated without speed sensor or additional hardware
  本文对矢量控制的原理、控制方法以及控制实施策略进行了较为系统的分析与研究，利用速度间接观测理论，建立了异步电机的磁通观测器，电机的定子磁通和电流的转矩分量可以通过磁通观测器估算出来，从而得到电机的转速，并由此建立了异步电机无速度传感器矢量控制的理论数学模型和相应的控制算法，在此基础之上，利用工程中常用的电机专用dsp芯片tms320lf2407作为处理器，对异步电机进行变频调速控制。