松下电工的产品覆盖了控制机器、电子材料等支撑尖端电子技术的产品和照明、电器等与生活密切相关的商品。松下电工在不断推进原有核心技术的同时，引进新技术，推出其它公司所没有的产品。日前，在幕张举办的日本高科技联展“CEATEC Ja...松下电工的产品覆盖了控制机器、电子材料等支撑尖端电子技术的产品和照明、电器等与生活密切相关的商品。松下电工在不断推进原有核心技术的同时，引进新技术，推出其它公司所没有的产品。日前，在幕张举办的日本高科技联展“CEATEC Japan 2007”上，松下电工对其系列超小型化产品和微观集成工艺技术进行了全面展示。展开更多
A linear ultrasonic motor using longitudinal vibration of bar with varying section is proposed. The lin- ear ultrasonic motor has two varying section bars connected by semi-circumferential structure. Elliptical trajec...A linear ultrasonic motor using longitudinal vibration of bar with varying section is proposed. The lin- ear ultrasonic motor has two varying section bars connected by semi-circumferential structure. Elliptical trajecto- ries of particles are formed on top of the semi-circumferential structure outer surface where a driving foot is locat- ed. And a mover is pushed to move linearly when the driving foot is pressed onto it. Finite element model of sta- tor is built and results of harmonic analysis verify its principle. Moreover, design requirements of the motor are analyzed through finite element analysis and the results of sensitive analysis provide an efficient way to design the type of linear ultrasonic motor. Prototype test shows that the motor can afford load of 10 N at the speed of 100 mm/s.展开更多
文摘松下电工的产品覆盖了控制机器、电子材料等支撑尖端电子技术的产品和照明、电器等与生活密切相关的商品。松下电工在不断推进原有核心技术的同时，引进新技术，推出其它公司所没有的产品。日前，在幕张举办的日本高科技联展“CEATEC Japan 2007”上，松下电工对其系列超小型化产品和微观集成工艺技术进行了全面展示。
基金Supported by the National Natural Science Foundation of China(50735002)~~
文摘A linear ultrasonic motor using longitudinal vibration of bar with varying section is proposed. The lin- ear ultrasonic motor has two varying section bars connected by semi-circumferential structure. Elliptical trajecto- ries of particles are formed on top of the semi-circumferential structure outer surface where a driving foot is locat- ed. And a mover is pushed to move linearly when the driving foot is pressed onto it. Finite element model of sta- tor is built and results of harmonic analysis verify its principle. Moreover, design requirements of the motor are analyzed through finite element analysis and the results of sensitive analysis provide an efficient way to design the type of linear ultrasonic motor. Prototype test shows that the motor can afford load of 10 N at the speed of 100 mm/s.
