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基于小波差动模式的双模态超声波电机驱动特性研究 被引量:2

Study on Actuating Characteristics of Bimodal Ultrasonic Motor Based on Wavelet Differential Pattern
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摘要 双模态超声波电机(USM)在研制的小波差动控制下,提高了双模态USM的低速运行性能,并使双模态USM的驱动分辨率达到了纳米量级。小波差动控制的机理是通过改变双模态USM驱动头的运行轨迹来实现双模态USM的微纳驱动,以及通过控制小波驱动元的触发频率以获取所需的双模态USM步进速度。本文以试验的方式,探讨了双模态USM驱动模型,给出了在小波差动控制下的双模态USM位移驱动特性和特点。 Bimodal ultrasonic motor ( USM ) controlled by wavelet differential voltage improves its actuating characteristics at slow actuating velocity and realizes nanometer level actuating resolution. The principle of wavelet differential control is to alter the trajectory of actuating head of bimedal USM to obtain micro-nanometer displacement and to change the triggering frequency of wavelet actuating wave to get different step velocities of bimedal USM. This paper discusses the actuating model of bimedal USM based on experiments and gives the actuating characteristics of displacement of bimedal USM controlled by wavelet differential pattern.
出处 《电子测量与仪器学报》 CSCD 2008年第2期21-25,共5页 Journal of Electronic Measurement and Instrumentation
基金 国家自然科学基金资助项目(编号:50775063) 国家自然科学基金重大国际合作项目(编号:50420120134) "现代测试与制造质量"安徽省高等学校省级重点试验室 合肥工业大学研究生科技创新基金资助
关键词 双模态超声波电机 小波驱动元 差动控制 运行轨迹 驱动特性 bimodal ultrasonic motor, wavelet actuating wave, differential control, trajectory, actuating characteristic.
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