Micro-displacement Positioning of Giant Magnetostrictive Actuator
Giant magnetostrictive materials have a broad potential application in aviation and aerospace field owing to its good properties.The actuators made of the materials show excellent performance which makes them a good choice for precision positioning.This paper presents a micro-displacement positioning system of the giant magnetostrictive actuator (GMA).The structure of the system and its control method are described.In order to achieve the steady micro-positioning characteristics,the adjustment process of the system based on the control algorithm of Programmable Multi-axis Controller (PMAC) was researched.The response time of the GMA was less than 1 ms which was shown in the step response curve.Relatively large displacement (5~20 μm) positioning and micro-displacement (0.9~3 μm) positioning were achieved with the average positioning systematical errors of less than 0.5 μm.
Micro-displacement Positioning Giant magnetostrictive actuator (GMA) Programmable multi-axis controller (PMAC)
Linlin Liu Tianli Zhang Heng Zhang Chengbao Jiang
School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics,Beijing 100191, China
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
146-151
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）