This paper presents a multi-axis surface encoder that can measure six-degree-of-freedom
(six-DOF) translational displacement motions and angular motions of a planar motion stage …

Vibration in state-of-the-art machining impacts accuracy by diminishing the machine's
dynamic precision and the workpiece surface quality. The dependability of the cutters and …

Dual drive gantry mechanisms, in which two actuators are physically connected through a
crossbeam to provide a joint thrust for higher acceleration, are widely used in high-speed or …

Industrial motion control of dual-drive gantry stages is usually performed by position
controllers acting independently on each actuator. This approach neglects the unbalance …

This paper proposes a second-order sliding mode controller for a three-dimensional
overhead crane in an extremely complicated operation with uncertain system parameters …

In this work, the design of a novel the flexure-linked dual-drive H-gantry is first introduced.
Compared to conventional stacked XY tables, the advantages of this gantry are on …

Among various types of precision stages, magnetically levitated precision positioning stages
offer unique capabilities including frictionless motion, vacuum compatibility, and …

This article presents a novel adaptive contour control scheme for dual-linear-motors-driven
gantry stages (DLMDGSs) with time-varying model parameters and disturbances, aiming to …

An overhead crane transfers the payloads of various volumes and weights depending on the
each operation case. The friction factors characterized by damped coefficients can be …

A three-degree-of-freedom (3-DOF) dynamic model-based intelligent nonsingular terminal
sliding mode control (INTSMC) system is proposed in this study for the precision contours …