Results 1 to 10 of about 2,632,024 (290)
Error-resilient Floquet geometric quantum computation [PDF]
Physical Review Research, 2021 We propose a geometric quantum computation (GQC) scheme, called Floquet GQC (FGQC), where error-resilient geometric gates based on periodically driven two-level systems can be constructed via a non-Abelian geometric phase proposed in a recent study [V ...
Yuan-Sheng Wang +3 more
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The influence of different load distribution considering geometric error on the fatigue life of ball screw [PDF]
Scientific ReportsThe ball screw pair is a precision drive component that converts rotary motion into linear motion. In practical applications, because the feed system usually has rotational torque and geometric errors, it may increase the contact load of the ball screw ...
Qin Wu +3 more
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Development of the Heterodyne Laser Encoder System for the X–Y Positioning Stage
Sensors, 2021 This investigation develops a laser encoder system based on a heterodyne laser interferometer. For eliminating geometric errors, the optical structure of the proposed encoder system was carried out with the internal zero-point method.
Chung-Ping Chang +4 more
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Mathematics, 2023 In this paper, a kinematic separation calibration method of 6R series manipulator is proposed, and its absolute accuracy is improved by a binocular camera and standard sphere.
Rui Wang +3 more
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Geometric Error Analysis of a 2UPR-RPU Over-Constrained Parallel Manipulator
Machines, 2022 For a 2UPR-RPU over-constrained parallel manipulator, some geometric errors result in internal forces and deformations, which limit the improvement of the pose accuracy of the moving platform and shorten the service life of the manipulator.
Xu Du, Bin Wang, Junqiang Zheng
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An Analysis of Joint Assembly Geometric Errors Affecting End-Effector for Six-Axis Robots
Robotics, 2020 This paper presents an analysis of the geometric errors of joint assembly that affect the end-effector for a six-axis industrial robot. The errors were composed of 30 parameters that come from the Geometric Dimensioning and Tolerancing (GD&T) design ...
Chana Raksiri +2 more
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Machines, 2022 Four-axis machine tools with two rotary axes are widely used in the machining of complex parts. However, due to an irregular kinematic relationship and non-linear kinematic function with geometric error, it is difficult to analyze the influence the ...
Guojuan Zhao +5 more
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A novel geometric error identification and prediction approach [PDF]
MATEC Web of Conferences, 2022 This paper proposed an integrated geometric error identification and prediction method to solve the uncertainty problem of the PDGEs of rotary axis.
Fan Jinwei, Wang Peitong, Li Zhuang
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Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2016 Unexpected glitches typically occur on the finished surface machined by the 5-axis machining centers, because of geometric and dynamic synchronous errors of the machine.
Shogo HASEGAWA +2 more
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Error bounds in stochastic-geometric normal approximation [PDF]
Discrete Mathematics & Theoretical Computer Science, 2008 We provide normal approximation error bounds for sums of the form $\sum_x \xi_x$, indexed by the points $x$ of a Poisson process (not necessarily homogeneous) in the unit $d$-cube, with each term $\xi_x$ determined by the configuration of Poisson points ...
Mathew Penrose, Tom Rosoman
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