https://scholars.lib.ntu.edu.tw/handle/123456789/611944
標題: | Improvement of the nonlinear dynamic response of a Z-tilts lead zirconate titanate-based compensation stage using the capacitor insertion method | 作者: | Liu C.-H. Chen C.-L. Lee H.-W. Jywe W.-Y. Wen-Yuh Jywe |
關鍵字: | Angular displacement;Insertion methods;Laser interferometer;Lead zirconate titanate;Measuring systems;Non-Linearity;Nonlinear dynamic response;Proportional integral controllers;Quadrant photodiode detectors;Sine-wave;Cantilever beams;Capacitance;Capacitors;Cavity resonators;Dynamic response;Feedback;Interferometers;Laser interferometry;Piezoelectric transducers;Piezoelectricity;Piezoelectric actuators | 公開日期: | 2009 | 卷: | 80 | 期: | 11 | 來源出版物: | Review of Scientific Instruments | 摘要: | This paper presents a Z-tilts compensation stage with three piezoelectric actuators and three guided hinges, which are a combination of a two-dimensional rotational hinge and a spring-type hinge. In order to reduce the nonlinearity of the three piezoelectric actuators, the capacitor insertion method was applied on each piezoelectric actuator. The relationship between the improved nonlinearity and the decreased displacement with various inserted capacitors is discussed and suitable capacitors for the stage are determined. A three-dimensional feedback measuring system composed of a laser interferometer and a quadrant photodiode detector was used to directly measure the real working position of the platform of the Z-tilts compensation stage without measuring the individual displacement of the three piezoelectric actuators. The minimum displacement and angular displacement of the Z-tilt stage were ±10 nm and ±0.1 arc sec, respectively. The error of the dynamic response of z, θx, and θy with amplitudes of 3 μm of a sine wave at 30 Hz were ±70 nm, ±0.1 arc sec, and ±0.4 arc sec, respectively, with the capacitor insertion method and a simple proportional-integral controller. ? 2009 American Institute of Physics. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-71749095528&doi=10.1063%2f1.3262504&partnerID=40&md5=892caecd72067cb1ec5b587494b54acc https://scholars.lib.ntu.edu.tw/handle/123456789/611944 |
DOI: | 10.1063/1.3262504 |
顯示於: | 機械工程學系 |
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