【作者】 熊飞；

【导师】 胡泓；

【作者基本信息】 哈尔滨工业大学 ， 机械电子工程， 2010， 硕士

【摘要】 尺蠖直线电机是模仿生物界尺蠖运动原理而得名,以压电元件为动力转换元件,将压电体的微小振动位移按照尺蠖原理形成连续的步进的精密位移输出。它是纳米级定位精度的步进直线电机,在航空航天、光纤对接、生物工程、显微外科、超精密加工等方面具有十分广阔的应用前景。它的驱动控制器是影响其精度的重要因素之一,因此设计出一种性能优异的驱动控制器对于提高尺蠖直线电机的精度具有十分重要的意义。本文围绕驱动控制器的设计展开论述。首先,文章通过对尺蠖直线电机原理及其驱动控制器国内外发展现状的研究,提出了信号发生器与压电驱动电源相结合的系统方案。同时,文章对驱动控制器的软硬件设计原理与方案进行了详细描述。驱动控制器的硬件由直流稳压模块、放大模块和控制模块三部分组成,实现产生和放大驱动信号的功能。它的软件是在DSP控制器上编写,以实现产生驱动信号、监测输出信号、选择驱动模式、设置驱动参数以及提示用户操作的功能。最后对研制出的样机进行了测试,其输出电压范围为0～200V,单路最大输出电流为240mA,最大输出功率144W,在负载5 F时频响为40Hz左右,纹波不大于200mV,线性度大于99.9%,分辨率在50mV左右。更多还原

【Abstract】 Inchworm linear motor is the imitation of inchworm motion, while the piezoelectric element is a driving force conversion component. Inchworm linear motor is a nano-precision piezoelectric-driven linear stepper motor. It has very broad application prospects in the aerospace, fiber optic docking, bio-engineering, micro-surgery, ultra-precision machining and so on. Its drive controller is an important factor affecting the accuracy of an inchworm linear motor, so designing a drive controller of high performance is of great significance for improving the accuracy of an inchworm linear motor.This paper discusses the drive controller design. First of all, by researching the principle of inchworm linear motor and the status of research development of drive controller at home and abroad, the article puts forward a combination of the signal generator and piezoelectric-driven power as the system solution.At the same time, the article describes hardware and software designing principles and programs in detail. Drive controller hardware has three components from the DC voltage regulator module, amplifier module and controller module, to generate and amplifies the drive signals. Its software is prepared in the DSP controller to generate drive signals, monitor the output signals, select the drive modes, set the drive parameters and prompts the user to operate.Finally, the prototype developed by the article is tested, the output voltage range of 0 ~ 200V, single maximum output current of 240mA, the maximum output power of 144W, when the load 5 F frequency response of 40Hz or so, the ripple of less than 200mV, linearity of greater than 99.9%, a resolution of about 50mV.更多还原