Utilizing Multilayer Lithium Niobate Elements for Ultrasonic Actuators
Ultrasonic actuators are used in a wide field of applications:ultrasonic welding,turning or milling supported by ultrasound vibrations or ultrasonic motors.Piezoelectric ultrasonic actuators typically work with PZT (Lead Zirconate Titanate) ceramics.Recently,alternative materials become more and more interesting for their use in ultrasonic actuators,due to the upcoming restrictions on using lead in new products.This study investigates the capabilities of an alternative material:LiNbO3 (Lithium Niobate).The two major advantages of LiNbO3 are that it is a lead free material and the high Curie temperature of 1210℃.The work is structured in two parts:First,a new way for the assembling of LiNbO3 multilayer stacks is proposed.Second,the proposed principal transducer is setup and characterized.The maximum gained vibration amplitude was 3.5 μm at the resonance-frequency of 23.5 kHz.
Jens Twiefel Takeshi Morita
Heinz Nixdorf Institute,Mechatronics and Dynamics,University of Paderborn.Fürstenallee 11,33102 Pade Graduate School of Frontier Sciences,The Univ.of Tokyo Kashiwano-ha 5-1-5,Kashiwa,277-8563,Japan
国际会议
南京
英文
101-106
2007-09-09（万方平台首次上网日期，不代表论文的发表时间）