The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The one of the most important foundations of micro-manipulation is the micro- and nano- displacement's accurate measurement. This paper focused on the end effectors measurement for a nano-manipulation robot, which is working in the scanning electron microscope's vacuum chamber. A standard capacitor are charged and discharged through the strain gauge, and the time are measured by time-digital convertor,...
The consistency between the axis of manipulators and image is very significant since the visual servo is the most important tool in the nano manipulation. This paper proposed an automated axis alignment method for a nano manipulator inside the SEM by recognizing the position of a closed-loop controlled the end-effector, which can characterize the relationship of these two axes and the rotation matrix...
This paper investigates the stability probabilities of terminal sliding mode control of the continuous manipulator systems with Markovian jumpings. The proposed sliding manifold is a nonsingular sliding mode, which can be reached in a finite time. Furthermore, we discuss the situation that the control force is not strong enough, and then propose the reaching probability and sliding probability. A...
This paper investigates terminal sliding mode control of the continuous Markovian jumping manipulator systems. The proposed sliding manifold is a nonsingular sliding mode. The time taken to reach the equilibrium from any initial state is finite. The control scheme can ensure the manipulator to track the desire trajectory. A numerical example is given to show the feasibility of the theoretical results.
This paper presents a collision-free path planning approach based on Bezier curve for a mobile manipulator with the endpoints restricted by the manipulator. Based on these candidate endpoints and the initial posture of mobile manipulator, a series of feasible Bezier paths are obtained with the constraints from velocity, acceleration and environment. And then the optimal collision-free path is determined...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.