Results 21 to 30 of about 761,718 (286)
Are geometric morphometric analyses replicable? Evaluating landmark measurement error and its impact on extant and fossil Microtus classification. [PDF]
, 2020 Geometric morphometric analyses are frequently employed to quantify biological shape and shape variation. Despite the popularity of this technique, quantification of measurement error in geometric morphometric datasets and its impact on statistical ...
Adams D. C. +8 more
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Applied Sciences, 2023 This study implemented the measurement results and administrative information obtained from the hole plate into the Digital Calibration Certificate (DCC).
Ming-Xian Lin, Tsung-Han Hsieh
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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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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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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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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 Correction and Detection, a Geometric Approach [PDF]
The Computer Journal, 1984 Summary: This paper is basically a tutorial on error detection and correction. The presentation though is via a new approach. This approach has an inherent characteristic leading to parallel hardware implementation and is thus better suited for computer and parallel processing applications.
Ward, R. K., Tabandeh, M.
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Ultraprecision Real-Time Displacements Calculation Algorithm for the Grating Interferometer System
Sensors, 2019 Grating interferometry is an environmentally stable displacement measurement technique that has significant potential for identifying the position of the wafer stage.
Weinan Ye +6 more
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Influence of Geometric Error of Rollers on Rotational Accuracy of Cylindrical Roller Bearings
Xibei Gongye Daxue Xuebao, 2019 As the rotation of roller bearings is carried out under geometrical constraint of the inner ring, outer ring and multiple rollers, the motion error of the bearing should also be resulted from geometric errors of bearing parts. Therefore, it is crucial to
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