The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2016
Filed:
Apr. 15, 2013
Tsinghua University, Beijing, CN;
Kaiming Yang, Beijing, CN;
Yu Zhu, Beijing, CN;
Dongdong Yu, Beijing, CN;
Rong Cheng, Beijing, CN;
Ming Zhang, Beijing, CN;
Xin Li, Beijing, CN;
Haihua Mu, Beijing, CN;
Jinchun Hu, Beijing, CN;
Dengfeng Xu, Beijing, CN;
Wensheng Yin, Beijing, CN;
Guofeng Ji, Beijing, CN;
TSINGHUA UNIVERSITY, Beijing, CN;
Abstract
A single degree of freedom vibration isolating device of a linear motor and a motion control method thereof. The vibration isolating device comprises a balance block, an anti-drifting driving unit, and a control unit. An upper surface of the balance block is connected to a stator of the linear motor, and a lower surface of the balance block is connected to a base. The anti-drifting driving unit is connected to the balance block for controlling the position of the balance block. Provided two motion control methods: inputting a second grating ruler signal to the control unit as feedback to perform variable stiffness and nonlinear control on the balance block; inputting a first and a second grating ruler signal to the control unit as feedback to obtain resultant centroid displacement signals of the rotor and the balance block to perform nonlinear anti-drifting control on the balance block.