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http://dx.doi.org/10.5207/JIEIE.2005.19.8.122

Design of Roll-Screen System Using Ultrasonic Motor  

Kim, Jeong-Do (호서대학교 전기전자공학과)
Jung, Woo-Suk (호서대학교 전기전자공학과)
Ham, Yu-Kyung (호서대학교 전기전자공학과)
Kim, Dong-Jin (호서대학교 전기전자공학과)
Hong, Chul-Ho (호서대학교 전기전자공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.19, no.8, 2005 , pp. 122-130 More about this Journal
Abstract
For silent operation, Roll-Screen has been designed by using piezolelectric ultrasonic motor. To drive the ultrasonic motor, a digitally controlled drive system has been designed by using PLD. And to measure the position and velocity of Roll-Screen, encoder with 36 pulse/revolution is used. This paper proposed a new method for a precise velocity control of ultrasonic motor, in spite of using low-level encoder. The proposed method use a non-fixed sampling time and compensate the initial nonlinear characteristics of ultrasonic motors.
Keywords
Roll-Screen; Piezoelectric ultrasonic motor;
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  • Reference
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