정보저장시스템학회:학술대회논문집
- 정보저장시스템학회 2005년도 추계학술대회 논문집
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- Pages.190-194
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- 2005
렌즈 구동을 위한 선형 초음파 전동기 설계
Design of Linear Ultrasonic Motor for Small tong Actuation
- 발행 : 2005.10.01
초록
There is a great demand of micro-actuators for mobile information devices such as SFF optical drives and mobile camera phones. However, conventional magnetic coils of electromagnetic motors are a major obstacle for miniaturization because of their complicated structures and large power consumption. In this paper, a linear ultrasonic motor to actuate focusing lens of mobile devices is proposed. The new actuator uses a ring type bimorph piezoelectric material, and