Measurement accuracy analysis and error correction of CCD light-projection diameter measurement system

2009 ◽  
Author(s):  
Qing Song ◽  
Chunsong Zhang ◽  
Jiayong Huang ◽  
Di Wu ◽  
Jing Liu
Keyword(s):  
Error Correction ◽  
Measurement System ◽  
Measurement Accuracy ◽  
Accuracy Analysis ◽  
Diameter Measurement

Improved measurement accuracy from iterative error correction

1981 ◽  
Vol 24 (4) ◽  
pp. 262-264
Author(s):  
T. M. Aliev ◽  
D. I. Damirov ◽  
A. M. Shekikhanov
Keyword(s):  
Error Correction ◽  
Measurement Accuracy ◽  
Iterative Error

Accuracy analysis of a clinical measurement system for AP-laxity in the human knee joint

1985 ◽  
Vol 18 (7) ◽  
pp. 541
Author(s):  
Ph. Edixhoven ◽  
R. Huiskes ◽  
Th.J.G. van Rens ◽  
T.J.J.H. Slooff
Keyword(s):  
Knee Joint ◽  
Measurement System ◽  
Accuracy Analysis ◽  
Clinical Measurement ◽  
Human Knee ◽  
Human Knee Joint

scholarly journals Simulation Analysis of Magnetic Gradient Full-Tensor Measurement System

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Lei Xu ◽  
Ning Zhang ◽  
Liqing Fang ◽  
Huadong Chen ◽  
Pengfei Lin ◽  
...  
Keyword(s):  
Magnetic Dipole ◽  
Measurement System ◽  
Measurement Accuracy ◽  
Simulation Analysis ◽  
Magnetic Gradient ◽  
Measurement Systems ◽  
Magnetometer Array ◽  
Array Structure ◽  
Simulation Results ◽  
Planar Measurement

The magnetic gradient full-tensor measurement system is diverse, and the magnetometer array structure is complex. Aimed at the problem, seven magnetic gradient full-tensor measurement system models are studied in detail. The full-tensor measurement theories of the tensor measurement arrays are analyzed. Under the same baseline distance, the magnetic dipole model is used to simulate the measurement system. Based on different measurement systems, the paper quantitatively compares and analyzes the error of the structure. A more optimized magnetic gradient full-tensor measurement system is suggested. The simulation results show that the measurement accuracy of the planar measurement system is slightly higher than that of the stereo measurement system. Among them, the cross-shaped and square measurement systems have relatively smaller structural errors and higher measurement accuracy.

Signal Sampling and Accuracy Analysis of Large Gear’s Angular Displacement Measuring its Deviation On-Machine

2011 ◽  
Vol 189-193 ◽  
pp. 4201-4204
Author(s):  
Jia Qi Jin ◽  
Hui Li
Keyword(s):  
Measurement Accuracy ◽  
Angular Displacement ◽  
Total Error ◽  
Measuring Method ◽  
Displacement Measurement ◽  
Signal Acquisition ◽  
Accuracy Analysis ◽  
Friction Disc ◽  
Large Gear ◽  
Circular Grating

To solve the critical problem of large gear deviation on-machine: angle displacement measurement that is how to get signal acquisition and accuracy analysis of angle displacement. A new measuring method is proposed, which applies the dividing mechanism (it is composed of friction disc and circular grating) to ensure index and pick up signal of gear corner correctly and strictly according to the principle of angular displacement measurement. Furthermore, the main error which affects measurement accuracy is analyzed, and accuracy is analyzed with geometrical theory such as Fourier series and error synthesis principle etc. The experimental results indicate that angel dividing and signal samplings are easier and more efficient by the dividing mechanism, furthermore, the accuracy is in the range of total error that is permitted by verification, and the mechanism can also meet the requirement of high accuracy, so the method is significance that assessing transmission accuracy of involutes gear.

High Precision Machine Vision System for Outer Diameter Inspection Bearing

2013 ◽  
Vol 552 ◽  
pp. 313-318
Author(s):  
Yuan Gao ◽  
Guo Yu Zhang
Keyword(s):  
Machine Vision ◽  
Optical System ◽  
High Speed ◽  
Measurement Accuracy ◽  
Polynomial Interpolation ◽  
Vision System ◽  
Outer Diameter ◽  
Machine Vision System ◽  
Diameter Measurement ◽  
Ccd Image

A machine vision system for bearing outer diameter inspection has been developed in this paper. The infinite objective of optical system is applied to diameter measurement system. The paper provides a method for measuring the size of objects based on polynomial interpolation. The technology of CCD image stagger is applied in the paper. The method can avoid space between pixels astriction theoretically, so higher measurement accuracy is gained. The experiment results show that the system has many advantages such as non- touch , high speed and higher precision.

Accuracy Analysis of a Clinical Measurement System for Ap-Laxity in the Human Knee-Joint

1985 ◽  
pp. 391-396
Author(s):  
Ph. Edixhoven ◽  
R. Huiskes ◽  
L. Blankevoort ◽  
Th. J. G. van Rens ◽  
T. J. Sloof
Keyword(s):  
Knee Joint ◽  
Measurement System ◽  
Accuracy Analysis ◽  
Clinical Measurement ◽  
Human Knee ◽  
Human Knee Joint

Modeling and Measurement Accuracy Analysis of Six-light-screen Optical Target Based on Plane Equation

2020 ◽  
Vol 49 (7) ◽  
pp. 712003
Author(s):  
扈冀晗 Ji-han HU ◽  
高芬 Fen GAO ◽  
倪晋平 Jin-ping NI
Keyword(s):  
Measurement Accuracy ◽  
Accuracy Analysis
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