position angle meaning in English
方位角
炮目高低角
位置角
Examples
- Last , matlab6 . 1 as simulation tool is used to make research for the whole srd system and operating characteristics and rotor position angle estimation
最后采用matlab6 . 1软件作为仿真工具，对srd系统以及sr电机的控制特性和转子位置估算方法进行了仿真研究。 - In addition , protection and display function units are added into this system . on the basis of study about working principle of previous indirect rotor - position detecting techniques , the fuzzy rules with the relation knowledge of - i - is studied in this paper as an approach for sensorless position angle estimation , and the simulation research for control performance and rotor position estimation are carried out . some experimental research on structure of srd controller is well made , and a fuzzy + pid speed controller with tms320f240 as core control unit is designed
研究了srd系统结构，对已有的主电路和驱动电路进行改进，完善了系统的各种保护和显示等功能；在对已有的无位置传感器转子位置检测原理进行研究的基础之上，根据sr电机的磁链?电流?角度之间的关系，研究了采用模糊规则无位置传感器检测方案；对srd系统的控制器结构进行研究，设计采用tms320f240高速信号处理器的fuzzy + pid控制器，研究了fuzzy + pid控制器以及系统运行中的各种保护、显示、报警等功能的设计思想和实现方法。 - All of work above can work as the basic knowledge for further research for operating characteristics and simulation , the detecting principle and implementing method with sensor as the means for requirement of information about rotor position are described . next , a novel inductance method and rotor position angle estimation using fuzzy logic are studied . in this dissertation , some knowledge about error signals are detailed , at the same time , some rese arch for improving precision is also provided
通过分析有位置传感器的检测原理和实现方法，重点研究了两种无位置传感器转子位置检测方法：一是采用改进电感法(阀值电感法)的转子位置检测方法，并设计了实现方法；二是基于模糊推理规则的转子位置估算方法，针对此方法中误差信号进行分析，研究提高角度估算精度的策略和方法。 - The paper has five sections include the basic knowledge and the experiment research , systematically analyses the impact of the liquid crystal box ' s position angle on the measuring result of liquid crystal lyot filter and the practical significance of this work . the work of this paper maily includes five sections : ( 1 ) the related theory of the crystal birefringence is systemicly introduced in this paper ; ( 2 ) the theory of the lc voltage - dependent birefringence is introduced ; ( 3 ) no voltage applied , changing curve between the transmission and the liquid crystal box direction is got from experiment ; ( 4 ) voltage applied , changing curve between the transmission and the liquid crystal box direction is got from experiment ; ( 5 ) desired wavelength is extract from changing the direction of liquid box . originality innovation of this paper is that the theory of the lc voltage - dependent birefringence is systemically introduced in this paper especially those related to voltage and direction
本文主要完成以下几方面工作： （ 1 ）比较系统地整理了晶体双折射的有关理论； （ 2 ）简单介绍了液晶的电控双折射特性； o ）在未加电压情况下，研究液晶盒方位角对滤光片透过率曲线的影响；厂）在加交流电压的情况下，研究液晶盒方位角对滤光片透过率曲线的影响； （ 5 ）利用方位角的调整来提取特定波长的谱线；本论文的创新之处在于比较系统地整理了晶体双折射的有关理论，特别是与电压及方向有关的理论，实验得出了滤光片透过率随液晶盒方位角变化的关系曲线，并将之运用于v吸器波长的话线朋 - Liquid crystal tunable filters as an important device of wavelength division multiplexing and dense wavelength division multiplexing systems is caused attention by research department , especially many foreign research institute are studying it . but in our country its study is lag . and normal incidence of the crystal is almost the case , because the liquid crystal box is very thin , the field angle may be large and the pose of liquid crystal box may have impact on the measuring result . so , study in such subject , especially the liquid crystal box ' s position angle , is academic and valuable
各种改进液晶电光可调谐滤光片的措施的实现，使得液晶调谐滤光片成为一种很有应用前景的电光调谐滤光片，特别是用于光纤通信中的波分复用系统和密集波分复用系统，将使光纤的传输客量大大增加目前国外在这方面的研究进展很快，而国内在这方面的研究比较薄弱，而且通常采用光线正人射晶体进行研究，由于液晶盒很薄，视场角可以很大，液晶盒的摆放对测量结果影响很大，因此对该器件进行深入的研究，讨论液晶盒的方位角影响是很有必要的。