| 1. | The angular distance between two celestial bodies as seen from earth
距角从地球上看的两个天体之间的角距离 |
| 2. | When it precedes the sun , appearing west of the sun in the morning , it is in western elongation
。反之，在日出前见到的内行星正位于太阳的西面，若这时的距角是这段时间最大的，便称为 |
| 3. | The driving system is controlled with microprocessor . it is easy to realize sin even subdivided driving and to obtain any wanted stepping by programming
驱动系统采用微机控制，灵活方便的用软件实现正弦波均匀细分和任意步距角。 |
| 4. | The method which good merits of high - fitting - accuracy and simplicity , can be used to subdivide the equal - stride - angle and to improve torque - frequency characteristics at low frequency
该算法简单，拟合准确度高，可实现步距角的等步距细分，能有效地改善低频起动矩频特性。 |
| 5. | Trapezoid very similar design suitable for a multipolar structure , not only reduced the permanent magnetism suggests the step away from the electrical kok , and high utilization of materials ; 3
2 .梯形爪极设计适合于多极结构，不仅减小了永磁步进电机的步距角，而且材料利用率高 |
| 6. | Popular point of view : when receiving step drive to a pulse signal , it driven by a step in the direction of the electrical equipment of a fixed point that is , step away from kok
通俗一点讲：当步进驱动器接收到一个脉冲信号，它就驱动步进电机按设定的方向转动一个固定的角度即步距角。 |
| 7. | The autoaligment instrument and accuracy turntable with digital display are used to detect the step angle after 32 subdivision , and the experiment results are given , the mean - square error of step angle after 32 subdivision is less than 3 . 7 %
为了检测32细分后的步距角，采用了自准直仪加精密数显转台的光学测量方法，并给出了实验结果， 32细分步距角的均方误差不大于3 . 7 。 |
| 8. | For compensating the nonlinear error between winding current and the result magnetic field of stepper motor , the method of minimum square is adopted to fit and correct the error curve of subdivision step angle , and the subdivision precision is improved
为了补偿步进电机相绕组电流与其产生磁场之间非线性引起的误差，采用了最小二乘法对细分步距角误差曲线进行了拟合与修正，提高了细分精度。 |
| 9. | So , a new criterion about the area calculation of the house appears . according to that , the area of the house equal to the sum of the practical area and the area of the wall section . the latter can be calculated on the criterion easily
测量仪的测量房屋套内面积的设想是通过步进电机驱动激光测距传感器旋转每一步距角，对距离数据进行每步采集保存，转满一周后对相邻距离值构成的三角形面积进行计算求和而得到面积。 |
| 10. | The flexble step angle two - phase hybrid stepping motor driver is a patented product applied by authors in 1998 . the paper reveals the detailed methods to realize this patented driver , also the feature and the performance indexes of the first generation driver are also presented
任意步距角的二相混合式步进电动机的驱动器是作者1998年申请的一项发明专利，文中介绍实现该专利的具体方法，以及第一代产品所达到的指标和特点。 |
