（论文）外文翻译.doc

（论文）外文翻译.doc本科毕业设计(论文)外文翻译译文
学生姓名: 康甲甲
院(系): 电子工程学院
专业班级: 测控0801
指导教师: 薛晓书
完成日期: 2012 年 3 月 29 日
Stepper motor
Stepper motor is a kind of electrical pulses into angular displacement of the implementing agency. Popular little lesson: When the driver receives a step pulse signal, it will drive a stepper motor to set the direction of rotation at a fixed angle (and the step angle). You can control the number of pulses to control the angular displacement, so as to achieve accurate positioning purposes; the same time you can control the pulse frequency to control the motor rotation speed and acceleration, to achieve speed control purposes.
In three stepper motors: permanent (PM), reactive (VR) and hybrid (HB) permanent stepper usually two-phase, torque, and smaller, step angle of degrees or the general 15 degrees; reaction step is generally three-phase, can achieve high torque output, step angle of degrees is generally, but the noise and vibration are large. 80 countries in Europe and America have been eliminated; hybrid stepper is a mix of permanent and reactive advantages. It consists of two phases and the five-phase: two-phase step angle of degrees while the general five-phase step angle of degrees generally. The most widely used Stepper Motor.
Stepper motor
Stepper motor is the electric pulse signals into angular displacement or linear displacement of the open-loop stepper motor control element pieces. In the case of non-overloaded, the motor speed, stop position depends only on the pulse frequency and pulse number, regardless of load changes, when the driver receives a step pulse signal, it will drive a stepper motor to Set the direction of rotation of a fixed angle, called the "step angle", which the angle of rotation is fixed step by step operation. Number of pulses can be controlled by controlling the angular displacement, so as to achieve accurate positioning purposes; the same time by controlling the pulse frequency to control the motor rotati