电机驱动的

An 89C2051 microprocessor was used to realize the phase order conversion of the step motor so that the Loop allotter circuit is easy and flexible. The VMOS is adopted as power elements of the design.

该步进电机驱动电路选择硬件环形分配，选择89C2051作为环形分配器，这种环行分配电路具有电路简单，可靠性高，柔性好的特点。

Man-machine inter-facial can program logic control, pneumatic, servo motor drive, advanced sterilizing and asepsis keeping.

人机界面，可编程控制、气动、伺服电机驱动，先进的杀菌与无菌保障。

Such as "Hardware Pulse Assignor" used by driving stepping motor.

如驱动步进电机用的"硬件脉冲分配器"。

The company has developed the mature solutions for: lock and chain stitch computerized embroidery machine control system; special embroidery such as sequin, taping and quilt; all kinds of motor drive; industry sewing machines such as high-speed lock-stitch sewing machine and bar tacking sewing machine.

公司具备成熟的锁式、链式刺绣机电脑控制解决方案、金片、盘带、绗缝等特种绣解决方案；各类电机驱动解决方案；高速平缝机、电脑套结机等工业缝纫机电脑控制解决方案。

The oxygen life indictor is an open-loop system made up of the step motor with a photoelectric switch .

仿真氧气生命指示器采用步进电机驱动和光电开关定位开环控制系统，在设计和实现中成功地解决了指示器盘面刻度非均匀的问题，并解决了光电开关确定零位问题和限位问题。

A unified model is established to investigate dynamic interactions between major locomotives fypes and the track.

文中建立了主要类型的机车－轨道统一模型；导出了弹性及刚性轴悬式电机驱动机车动力学微分方程；采用新型。。。

Permanent Magnet Synchronous Motor drived by triphase sinusoidal current is research object in this paper . Its mathematics models in several coordinate are set up , controlling principles of flux linkage and torque are discussed under DTC and the block diagram of PMSM with DTC is presented.

本文以三相正弦波驱动的永磁同步电机为研究对象，建立了其在不同坐标系下的数学模型，并深入探讨直接转矩控制中永磁同步电机的磁链和转矩的控制思想，给出控制方案。

This paper studies the design method of the magnetic transmission system of magnetic drive pump.

本文研究了磁力传动泵磁力系统的设计方法，借助有限元分析软件ANSYS的强大电磁分析功能对影响磁性能的主要结构因数作了计算分析；设计了磁力泵传动的结构；对磁力泵的关键部件之一密封罩用ANSYS做了强度校核；为了防止在电机启动时，磁力泵发生失速现象，本文提出了异步电机驱动磁力泵的simulink仿真模型，并对本文设计的磁力泵进行了初步仿真。

The paper is based on rotational parts of a kind of Screen Press machine tool. In order to guarantee the kinematics precision and stability of large rotational part, the technology of dual servo motor synchronous dive is adopted instead of conventional hydraulic servo drive.

文章以一种屏压机的转台及其传动机构为研究对象，为确保该大型回转部件的运动精度和平稳性，采用以双伺服电机同步驱动取代传统的液压伺服驱动的设计方案。

Without changing the original electric circuitry and mechanical space of steel tape-printing machines, the mechanical number-wheel of steel tape-printing machines was reconstructed electronically, using microchip Atmega16L and motor driver MTD2009 chip and step-motor division driving technology.

介绍了国内钢卷尺印刷机的应用现状，并以某钢卷尺制造企业的印刷数码轮改造为例，在不改变原钢卷尺印刷机的电气线路和空间等前提下，采用Atmega16L单片机、步进电机驱动芯片MTD2009及其细分驱动技术，对钢卷尺印刷机的机械式数码轮进行了电控改造，从而为钢卷尺印刷数码轮研制了经济实用、可靠有效的替换件。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。