제어로봇시스템학회:학술대회논문집
- 제어로봇시스템학회 1996년도 한국자동제어학술회의논문집(국내학술편); 포항공과대학교, 포항; 24-26 Oct. 1996
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- Pages.1052-1055
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- 1996
입력주파수 변화특성을 고려한 압전구동기의 정밀위치제어
Precise position control of piezoelectric actuators considering input frequency variance
초록
Piezoelectric actuator is widely used in precision positioning applications due to its excellent positioning resolution. However, serious hysteresis nonlinearity of the actuator deteriorates its precise positioning capability. Evenworse, its hysteresis nonlinearity changes as the actuator input frequency varies. In this study, a simple feedforward scheme is proposed and tested through experiments for precision position control when the variance of the system input frequency is significant.