Results 241 to 250 of about 180,594 (284)
Design and realization of drive power supply for micro-positioning platform
2011 International Conference on Electrical and Control Engineering, 2011 The drive power supply for micro-positioning platform is an integral part of the control system of micro-positioning platform. In order to achieve the purpose of accomplishing precise positioning, the micro-positioning platform not only needs nice positioning accuracy, but also has good controllability and stability.
Ru Changhai, Meng Zhu
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PID+CMAC Neural Network Control of Micro Positioning Platform
Applied Mechanics and Materials, 2015 Because of some intrinsic properties of the PZT actuator, such as hysteresis, creep and nonlinearity effect, it’s difficult to achieve satisfactory results and control precision for conventional PID controller. In order to improve the control precision of the PZT driven of micro positioning platform, we proposed a CMAC neural network based on PID ...
Xiao Yang, Yao Li
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Control of Residual Vibration in Micro-Positioning Platform
Advanced Materials Research, 2011 A flexure hinged micro-positioning platform driven by piezoelectric actuator is a under damped system, without compensation, the open loop transient response exhibits high degree of overshoot and residual vibration. In order to reduce residual vibration, the basic conception of input shaping technique (IST) was introduced; the inherent essence of IST ...
Hua Ji, Xiao Ping Hu
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Development of platform for micro-positioning actuated by piezo-legs
Proceedings 2000 ICRA. Millennium Conference. IEEE International Conference on Robotics and Automation. Symposia Proceedings (Cat. No.00CH37065), 2002 A platform for micro-positioning, actuated by three piezo legs, is described. The legs have no joints and motion is performed by slow bending and quick stretching of the legs. During the quick stretching phase the leg tips slip over the ground surface and the platform moves for a small increment.
L. Juhas +4 more
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Error compensation and feedforward controller design for a 6-dof micro-positioning platform
2005 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2005 In this article, hysteresis controller design and static error compensation method for a 6-dof micro-positioning platform driven by piezoelectric actuator is studied. The nonlinear hysteresis effect of the piezoelectric actuator is analyzed by means of Preisach model. Its inverse model is used as the feedforward controller. Error compensation method is
Yung Ting, Ho‐Chin Jar, Chun-Chung Li
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2019 IEEE 4th International Conference on Advanced Robotics and Mechatronics (ICARM), 2019 The micro/nano positioning system built by the piezoelectric actuator is discussed in this paper. To make the positioning mechanism applicable to the real application, the coupling effect due to the changing of input frequencies and loads need to be considered in the hysteresis modeling method, since such effect causes the output of the piezoelectric ...
Zedong Hu +3 more
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Neural Net-based Modeling and Control of a Micro-positioning Platform Using Piezoelectric Actuators
Journal of Vibration and Control, 2007 The paper proposes an integrated controller which combines feedforward, PID and a cross-coupling controller to achieve high accuracy for a dual-axis piezoelectric actuated platform. A Preisach model is created to numerically describe the hysteresis behavior of the piezoelectric actuators.
Van‐Tsai Liu +3 more
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Microsystem Technologies, 2016 Compliant micro-positioning platforms are necessary for highly precise applications. Measurements of the displacement and reinforcements of the stiffness are two major concerns of any compliant micro-positioning platform. This paper proposes a compliant micro-positioning platform (CMPP) with embedded strain gauges and a viscoelastic damper.
Thanh-Phong Dao, Shyh‐Chour Huang
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2017 Chinese Automation Congress (CAC), 2017
Piezoelectric ceramic micro-positioning platform has been widely used in micro-positioning, vibration control, and manufacturing applications as a core component of precision manufacturing equipment. However, the main drawback of the piezoelectric ceramic micro-positioning platform is the inherent hysteresis nonlinearity, which affects the positioning ...
Miaolei Zhou, Jingwen Xu
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Piezoelectric ceramic micro-positioning platform has been widely used in micro-positioning, vibration control, and manufacturing applications as a core component of precision manufacturing equipment. However, the main drawback of the piezoelectric ceramic micro-positioning platform is the inherent hysteresis nonlinearity, which affects the positioning ...
Miaolei Zhou, Jingwen Xu
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