步进电机的毕业论文.doc

摘 要 单片机亦称微控制器, 顾名思义，这种计算机的最小系统只用了一片集成电路，即可进行简单运算和控制。步进电机是一种将电脉冲转化为角位移的执行机构。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。步进电机可以作为一种控制用的特种电机，利用其没有积累误差(精度为100%)的特点，广泛应用于各种开环控制。 XL600试验仪配有一个标准的32位HT6121编码红外遥控器。通用红外遥控系统由发射和接收两大部分组成，应用编/解码专用集成电路芯片来进行控制操作Abstruct Also known as single-chip microcontroller, as its name suggests, this computer system has only the smallest piece of integrated circuits used to make a simple calculation and control.Due to SCM’s low-cost, small size, high reliability and high value-added advantages , The functions which achieved with a complex circuit of the past will be able to achieve with a pure microcontroller chip today. Therefore, the MCU control system is at an unprecedented rate to replace the classic electronic control system. Stepper motor is an electrical pulse will be converted into angular displacement of the implementing agencies. When the stepper drive pulse signal to a receiver, it drives stepper motor direction by setting a fixed angle of rotation (referred to as step angle), its angle of rotation is based on a fixed step-by-step operation. Can control the pulse number to control the amount of angular displacement, so as to achieve the purpose of accurate positioning; and at the same time by controlling the pulse frequency to control the motor rotation speed and acceleration, so as to achieve the purpose of speed. Stepper motor control can be used as a special motor, do not use their accumulated error (accuracy of 100%) the characteristics of a wide range of open-loop control. XL2000 tester equipped with a standard 32-bit code infrared remote control HT6121. Universal infrared remote control system by transmitting and receiving the two major components, the application of encoder / decoder ASIC chip for control operations. Stepper motor is the electrical pulse signal into an angular displacement or linear displacement of the control comp