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- rod shape ultrasonic motor 杆式超声电机
- Brief developing history of bending rotation ultrasonic motor is looked bace. 回顾了弯曲旋转超声马达的发展简史;
- First, On the basis of the characteristic of surface wave location, the far field of wedge shape ultrasonic transducer can be explored. 本文根据定位的特点，对常用的楔形表面波探头的远场做了分析和计算。
- Artificially infected mandarinfish, showing rod shaped lamellaes. 人工感染，示鳃丝棍棒化.
- The cylindrical type ultrasonic motor uses bending vibration of cylindrical stator to drive rotor. 柱体型超声波电机依靠圆柱定子的弯曲振动驱动转子旋转。
- Methods 17 patients were examined by trans thoracic echocardiography(TTE),and observed the membrane shape ultrasonic echo、blood stream change in aortic canal. 方法采用经胸超声(TTE)检查17例夹层动脉瘤患者,观察主动脉管腔内有无膜样回声及管腔内血流情况。
- Finally it explains in details the focusing points in the research of ultrasonic motor. 对超声电动机研究领域的诸多热点问题进行了详细的说明。
- The durability of the ultrasonic motor can be multiple improved by using alternate four driving beams of the stator. 此外，振子4个驱动梁的更换使用，可成倍提高超声电机的使用寿命。
- The symmetry structure makes it easy to modal optimum design of ultrasonic motor. 该类振子的结构对称性为超声电机的动态优化设计提供了方便。
- The infuence on resonance frequencies of longitudinal-torsional ultrasonic motor exerted by prestress is studied. 摘要研究了预压力对超声马达共振频率的影响。
- The traditional driving system of ultrasonic motor (USM) was poor in adaptability because of transformer. 摘要传统的超声波电动机由于升压变压器的存在，驱动系统通用性差。
- In the servo control system, traveling-wave ultrasonic motor (TUSM) need work in low speed. 在行波超声波电机伺服控制中，电机需要低速运行和正反向转动。
- Conclusion The oretical foundation is provided for designing longitudinal-torsional ultrasonic motor. 结论为纵扭复合型超声马达的设计提供了一定的理论基础。
- Among them Gram negative rod shaped cells occupy 86.22%,Gram positive spherical cells 13.11%,Candida 0.67% respectively. G－杆菌占86.;22%25，G＋球菌占13
- Ultrasonic motor (USM) is a new type motor which applies frictional force as the driving source. 摘要超声波电动机是以摩擦力作为驱动源的新型电动机。
- Abstract： This paper introduces the technology of ultrasonic motor (USM) and its potential in the future. 对超声波马达技术及其应用现状和发展前景做了介绍。
- Ultrasonic motor stalling is harmful to itself,so it is very important which ultrasonic motor are detected on-line. 超声电机堵转时对其本身危害很大,对其进行实时检测至关重要。
- Ultrasonic motor is a new type direct drive motor emerging with the development of high power density piezoelectric materials. 超声电动机是随着高功率密度压电材料的发展而出现的一种新型直接驱动电机。
- The problems of bending rotation ultrasonic motor are analyzed in micromation and industrialization.Some problems being worth researching are proposed. 分析了弯曲旋转超声马达在微型化和产业化方面的问题，提出了进一步研究的问题。
- A new hollow-structure hybrid longitudinal-torsional ultrasonic motor is put forward, which principle is different from the traditional one. 摘要为了提高电机低速时的大力矩，提出了一种具有中空结构的新型纵扭复合型超声波电机。
