Kyong-Jae Lee 강진규 강종윤 남산 김현재 윤석진 Hyun-Phill Ko 2024-01-21T04:03:28Z 2024-01-21T04:03:28Z 2021-09-06 2005-12 1229-7607 https://pubs.kist.re.kr/handle/201004/135928 In recent years, a novel tiny piezoelectric linear motor converting a radial mode vibration to a longitudinal mode vibration driven by the impact force has been developed for a camera optical module. The tiny piezoelectric motor is consisted of a shaft, mobile element, and piezoelectric transducer. In this work, the frictional coefficient and static friction force of the interface between the shaft and the mobile element have been investigated according to their respective materials. It was found that two combinations, namely Pyrex glass or stainless steel for the shaft and stainless steel (SUS) for the mobile element, exhibited good dynamic behaviors in the tiny ultrasonic linear motor, which was newly developed based on operating concepts based on Newton’s law. 한국전기전자재료학회 Optimal Friction Materials of Tiny Piezoelectric Ultrasonic Linear Motor Article 2 Transactions on Electrical and Electronic Materials, v.6, no.6, pp.249 - 255 Transactions on Electrical and Electronic Materials 6 6 249 255 kci other ART000980085 Piezoelectrics Linear motor Friction coefficient Transducer Shaft Mobile Piezoelectrics Linear motor Friction coefficient Transducer Shaft Mobile