usm

The Research of USM 's Speed and Position Control System Based on ARM

基于ARM的超声波电机速度位置控制系统研究

User facilities What should be managed ? Application and Study of Network Management Based on USM Mode

基于用户的安全模型在网管中的研究与实现

Frequency Tracking System of USM Drive Power

超声电机驱动电源频率跟踪系统的研究

Intelligent Control Methods with Applications to USM

智能控制方法及在超声马达中的应用

This kind of USM has merits such as simple structure and high output torque .

研制了一种基于四换能器协调驱动的球型超声电机，该电机具有结构简单、输出转矩大等优点。

The Design of USM Controller Based on CPLD

基于CPLD的超声波电动机控制器设计

On the Vibration of Stator of Linear Traveling - Wave USM

单激励直线行波超声马达定子振动特性研究

Implement of Serial Communication between DSP and Supervisor PC Used in USM Control and Test Platform

超声波电机控制测试平台中DSP与上位机串行通信的实现

The Dynamic Design of Standing Wave Linear USM with Double-Contact Surfaces

驻波型双接触面直线超声电机的动态设计

The ultrasonic linear motor has recently become a hotspot in the research and development of USM .

直线超声电机是近年来超声电机研究与发展中的热点。

USM will try to enhance high frequencies , which is not something that I want .

超声波马达将努力提高高频率，这不正是我想要的。

Control strategies for the two DOF trajectory following are studied and applied to the prototype USM .

研究了其中两个自由度的运动轨迹跟踪控制策略，并将其应用于电机样机的控制。

The developed test system for ultrasonic motors ( USM ) in-plane vibration modal testing is introduced .

介绍了所研制的超声波电动机面内振动模态试验测试系统。

The influence of the rotor distortion on self-correction usm function

转子变形对超声电机自校正功能的影响

Research on the Deep Micro Holes Machining by EDM with USM in Inverted Layout

倒置式电火花超声复合加工深微孔的研究

Recently , research on USM under abnormal environment has become a focus of many researchers from domestic and abroad .

近年来，超声马达在非常态环境下的研究，已成为国内外学者关注的热点。

Combined Machining of USM and EDM for Conductive Al_2O_3-Based Ceramic Materials

导电Al2O3基陶瓷刀具材料的超声&放电复合加工技术研究

Base on CMP and USM , the mechanism of integrate polishing was analyzed systematically .

基于化学机械抛光和超声振动加工技术，进行了复合抛光加工机理研究。

The experiment results show that USM can complete rapid response speed and high precise position control while using neuron PID controller .

实验表明，使用神经元自适应PID算法对超声波电机进行速度和位置控制，可以达到快速响应和高精度的控制效果。

This kind of USM has merits such as high output torque , simple driving and easy controllability .

研制了一种基于单振子纵弯换能器驱动的多自由度球型超声电机，该电机具有绝对输出转矩大、驱动简单和控制性能好等优点。

However , research on USM and its friction material ( FM ) in vacuum and low temperature was still incomplete .

然而，真空低温下的超声马达及其摩擦材料研究仍不完善。

The equivalent circuit model ( ECM ) can predigest the driving and controlling model of the USM .

应用机电类比原理，建立超声电机的等效电路模型，可以简化超声电机的驱动控制电路，本文正是在此基础上对超声电机的等效电路进行了研究。

Through MAC , encryption and timestamp , USM protects management messages from communication threats .

用户安全模型使用消息鉴别码、加密和时间戳保护网管消息的传输安全。

However , the research on its transient character has just started , which confines the application level and field of USM .

但是对其瞬态特性的研究尚处于起步阶段，这种状况极大的限制了行波型超声波电机应用水平的提高和应用领域的拓展。

Therefore , the research in USM needs to be strengthened , and I hope this paper can provide some references for future research .

因此，超声波电机的研究仍需加强，希望本文的研究内容能为今后的研究提高一些参考。

Although the experimental result is not good , it offers a reference for the study on the characteristic of USM used as step motor .

此外，本文还研究了行波超声波电机的步进特性，尽管实验结果并不理想，但是它为行波超声波电机步进特性的研究提供了一定的借鉴意义。

Based on the contact pattern between the stator and rotor , USM is classified as contact type and non-contact type .

根据电机定子和转子间能量传递方式，超声波电机分为接触型和非接触型。

Introducing principle , the development history and characteristic of USM and analyzing development and problem of driving source and position control method of USM .

简要地介绍了超声波电机的原理、发展历史和特点，重点分析了超声波电机驱动电源和定位控制的研究进展和存在的问题，从而引出本硕士论文的研究意义和主要内容。

A newly developed input output recurrent neural network ( IORNN ) identifier of USM is constructed .

建立了一个新的输入输出反馈神经网络结构用于超声马达速度辨识。

Then how USM works and how the ellipse trace of particle on the surface of stator forms are analyzed .

接着分析了超声波电动机的工作原理和定子表面质点椭圆运动的形成机理。