外文翻译-步进电机.doc

1、毕 业 设 计（论 文）外 文 参 考 资 料 及 译 文译文题目： Stepper motor 步进电机 学生姓名： 学号： 专业： 所在学院： 指导教师： 职称： 20xx年 02 月 25 日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

2、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

3、. 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 rotation speed and acceleration, to achieve speed control purposes.Work:Induction motor is a stepper mot

4、or, does it work is the use of electronic circuits, the DC power supply into a time-sharing, multi-phase timing control current, this current stepper motor power supply, the stepper motor to work properly , The drive is sharing power supply for the stepper motor, the polyphase timing controllerAltho

5、ugh the stepper motor has been widely used, but the stepper motor does not like a normal DC motor, AC motor in the conventional use. It must be double-ring pulse signal, power driver circuit composed of the control system can be used. Therefore, it is not easy with a good stepping motor, which invol

6、ves mechanical, electrical, electronics and computers, and many other specialized knowledge.As the stepper motor actuators, electromechanical integration, one of the key products, widely used in a variety of automatic control systems. With the development of microelectronics and computer technology,

7、 increasing demand for stepper motor, has applications in all areas of the national economy.步进电机是将电脉冲信号转变为角位移或线位移的开环控制元步进电机件。在非超载的情况下，电机的转速、停止的位置只取决于脉冲信号的频率和脉冲数，而不受负载变化的影响，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，称为“步距角”，它的旋转是以固定的角度一步一步运行的。可以通过控制脉冲个数来控制角位移量，从而达到准确定位的目的；同时可以通过控制脉冲频率来控制电机转动的速度和加速度，从而达到调速的目的。工作原理步进电机是一种感应电机，它的工作原理是利用电子电路，将直流电变成分时供电的，多相时序控制电流，用这种电流为步进电机供电，步进电机才能正常工作，驱动器就是为步进电机分时供电的，多相时序控制器 虽然步进电机已被广泛地应用，但步进电机并不能象普通的直流电机，交流电机在常规下使用。它必须由双环形脉冲信号、功率驱动电路等组成控制系统方可使用。因此用好步进电机却非易事，它涉及到机械、电机、电子及计算机等许多专业知识。 步进电机作为执行元件，是机电一体化的关键产品之一, 广泛应用在各种自动化控制系统中。随着微电子和计算机技术的发展，步进电机的需求量与日俱增，在各个国民经济领域都有应用。