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| Auto-detecting device of dial gauge based on ultrasonic motor |
| FENG Hao1, HUA Liang1, ZHANG Jian-Sheng2, WANG Wan-Liang1 |
1.College of Information Engineering, Zhejiang University of Technology, Hangzhou 310032, China;
2.College of Electronic Information and Electrical Engineering, Changzhou Institute of Technology,Changzhou 213002, China |
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Abstract This study puts forward an auto-detecting method of detecting the precision of dial gauges based on traveling wave ultrasonic motor and FPGA. This dial gauges automatic tester adopt closed loop position servo system of USM. The design of the position servo system depends on micro-step control technique of traveling wave USM and fuzzy control technique. Moreover, EDA technique, USB technique, sensor technology and digital image-processing technique are used in this system. The novel controller design of traveling wave USM using fuzzy micro-step control technique is put forward. Experments proved that the novel control method can highly enhance precision of position of USM without using precise sensor. This dial gauges automatic tester using USM has features of high precision, efficiency, flexible and convenient in operation and it has broad prospect in application.
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Published: 28 June 2006
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超声波电机模糊微步控制在指示表
提出了一种基于行波超声波电动机(USM)和FPGA的新型指示表自动检定仪的设计方法。该系统采用行波超声波电机伺服系统作为检定仪的微位移控制系统，并运用行波超声波电机模糊微步控制的新方法，实现了对指示表测杆的微量匀速进给，具有很高的精度。该指示类仪表智能检定仪还集成了EDA技术、USB通讯技术、传感器及数字图像处理等技术，可以实现各类指示型仪表的全自动检定和误差分析。提出的行波超声波电机模糊微步控制方法可在位移传感器分辨率较低情况下实现高精度、低速、稳定运行。提出的基于USM的检定仪精度高、效率高，易于实现自动测量，具有很好的应用前景。
关键词：
FPGA,
指示表,
行波超声波电动机,
微步控制,
模糊控制,
检定
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