Results 31 to 40 of about 2,632,024 (290)

A New Error Model and Compensation Strategy of Angle Encoder in Torsional Characteristic Measurement System

Sensors, 2019
For systems of measurement, geometric errors such as manufacturing and assembly errors could have a significant impact on the accuracy of the angle encoders of the system.
Bingkui Chen, Changyan Peng, Jian Huang
doaj   +1 more source

Characterizing Error in Noncommutative Geometric Gait Analysis

2022 International Conference on Robotics and Automation (ICRA), 2022
6 ...
Capprin Bass, Suresh Ramasamy, Ross L. Hatton   +2 more
openaire   +3 more sources

Measurement Method of Geometric Error of Coordinate Measuring Machine Using Laser Tracer

工程科学与技术, 2021
Geometric error is an important error source of coordinate measuring machine (CMM). The geometric error measurement methods currently used have the problems of low efficiency and low accuracy, which seriously deteriorate the further improvement of the ...
Lin HAN, Liang MI, Xingbao LIU, Qiang TENG, Qiang TANG, Yangqiu XIA   +5 more
doaj  

Non-Geometric Error Compensation for Long-Stroke Cartesian Robot With Semi-Analytical Beam Deformation and Gaussian Process Regression Model

IEEE Access, 2021
Till now, most calibration methods only compensate geometric error caused by inaccurate kinematic parameters, while the desired accuracy may still not be achieved when the robot is performing long-stroke, heavy-duty loading and unloading tasks.
Hongyu Wan, Silu Chen, Yisha Liu, Chi Zhang, Chaochao Jin, Jin Wang, Guilin Yang   +6 more
doaj   +1 more source

New weighted geometric mean method to estimate the slope of measurement error model [PDF]

, 2014
This paper introduces a new weighted geometric mean (WG) estimator to fit regression line when both the response and explanatory variables are subject to measurement errors.
Saqr, Anwar, Khan, Shahjahan
core   +1 more source

An Error Analysis of the Geometric Baade‐Wesselink Method [PDF]

The Astrophysical Journal, 2004
We derive an analytic solution for the minimization problem in the geometric Baade-Wesselink method. This solution allows deriving the distance and mean radius of a pulsating star by fitting its velocity curve and angular diameter measured interferometrically.
Marengo, Massimo, Karovska, Margarita, Sasselov, Dimitar D., Sanchez, Mayly   +3 more
openaire   +2 more sources

Automatic planning for machine tool calibration: A case study [PDF]

, 2012
Machine tool owners require knowledge of their machine’s capabilities, and the emphasis increases with areas of high accuracy manufacturing. An aspect of a machine’s capability is its geometric accuracy. International Standards and best-practice guides
P. Gregory, Parkinson, Simon, Fletcher, Simon, S. Fletcher, Crampton, Andrew, Fletcher, S., A. Crampton, Longstaff, Andrew P., S. Parkinson, Gregory, Peter, A.P. Longstaff, Crampton, A.; id_orcid, Longstaff, A. P.; id_orcid, Parkinson, S.   +13 more
core   +1 more source

A mapping model between the workpiece geometric tolerance and the end pose error of CNC machine tool considering structure distortion of cutting process system

Advances in Mechanical Engineering, 2021
Aiming at the problem that the geometric accuracy design index of machine tools is difficult to be determined reasonably in the geometric precision design process of CNC machine tools, this paper presents a mapping model between geometric tolerance of ...
Zixin Lin, Wenjie Tian, Dawei Zhang, Weiguo Gao, Lina Wang   +4 more
doaj   +1 more source

Research on Micro-CL Geometric Errors [PDF]

IEEE Access
Computed laminography (CL) is a nondestructive testing technique for planar objects. It has been applied in applications like printed circuit board inspection and paleontological fossils research. However, the CL system calibration is a challenging task for complex mechanical structure and many degrees of freedom.
Jiajun Zhang, Liu Shi, Cunfeng Wei, Baodong Liu, Biao Wei   +4 more
openaire   +1 more source

Investigation of the Contact Characteristics of a Single-Nut Ball Screw Considering Geometric Errors

Lubricants
As the critical performance index of ball screws, the contact characteristics have a significant influence on the lubricant properties, tribological properties, and wear properties of ball screws, which further directly affect the service life of ball ...
Jun Liu, Huaxi Zhou, Xiaoyi Wang, Changguang Zhou   +3 more
doaj   +1 more source