电动机

The structure and characteristic of the band-pass filter are analyzed,and parameters of components are calculated,and a Back-EMF zero-cross detection circuit for BLDC motor sensorless control is designed in this paper.

分析了带通滤波器的结构、幅频和相频特性，计算获得了符合要求的参数，设计了由带通滤波器构成的无刷直流电动机无位置传感器控制用反电动势过零检测电路，并给出了该检测电路的简化型式。

The paper founds the base of hardware and software for the further development of the several motors control system based on DSP chip.

为进一步开发基于DSP的多电动机控制系统奠定了硬件和软件基础。

The precision of motor parameter is the base of high-performance for sensorless vector control system.

摘 要：电动机参数的检测精度是提高无速度传感器矢量控制系统性能的基础。

This thesis has established the mathematical model of n-phase PMSM after thorough analysis of PMSM structure and running mode, and then put forward the vector transform method, which is as the base of vector control.

建立完善的多相化永磁同步电动机及控制系统的数学模型和分析方法是系统研究和实现的重要技术保证。

The main reason and the basic solution of this motion vibration and noise during the production process were introduced in detail in this paper.

详细介绍了在生产过程中引起永磁直流电动机振动和噪声的主要原因及解决的基本方法。

It mainly introduced the development of AC regulating speed system and the basis idea of Vector control and how to use SIMULINK in software MATLAB and establishing asynchronisms math model.

本文介绍了交流调速系统的概况、矢量控制的基本概念、MATLAB软件中SIMULINK仿真工具的使用以及建立异步电动机的数学模型。

A new method of Baume degrees on2line measuring is given in the paper.

提出了一种浓度在线测量的新方法，阐述了新型低成本牛奶浓度传感器———高精度的阻尼式波美度在线检测装置的研制，根据直流电动机在软机械特性区转速与转矩的关系，建立了浓度与转速的测量模型。

To fill the bilge wells with water then discharge the water by each bilge pump.

舱底总用泵进行排水效用试验不小于 30 分钟，电动机，泵，管路运行正常。

He hooked pulleys to an external electric motor and cranked things around a bit to check the compression.

他将滑轮钩向外部电动机并用曲柄摇了一下去检查压缩。

Pump installed in the blast area should be based on an explosion regional levels, using explosion-proof motor.

安装在爆炸区域的泵，应根据爆炸区域等级，采用防爆电动机。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。