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Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials, Volume 20, Number 7 (2009)
Copyright(C) MYU K.K.
pp. 319-326
S&M729 Research Paper of Special Issue
https://doi.org/10.18494/SAM.2009.563
Published: February 2, 2009

High Positioning Repeatability of Miniature Actuator [PDF]

Chien-Sheng Liu and Psang-Dain Lin

(Received July 17, 2008; Accepted October 1, 2008)

Keywords: actuator, voice coil motor, Hall element, camera module

Autofocusing actuators in camera phones should have a reduced profile and an improved performance in accordance with the requirements of consumer electronic products. In this study, we first discuss the detailed design of the miniature actuator presented in our previous work(10) and then describe an experiment to test its positioning repeatability. As compared with conventional voice coil motor (VCM) actuators positioned by open-loop control, the proposed miniature VCM actuator is small, has a high positioning repeatability and can improve the positioning repeatability by 87.5% of the typical value

Corresponding author: Chien-Sheng Liu


Cite this article
Chien-Sheng Liu and Psang-Dain Lin, High Positioning Repeatability of Miniature Actuator, Sens. Mater., Vol. 20, No. 7, 2009, p. 319-326.



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