Title
A kinematic calibration method based on the product of exponentials formula for serial robot using position measurements.
Abstract
Based on product of exponentials (POE) formula, three explicit error models are given in this paper for kinematic calibration of serial robot through measuring its end-effector positions. To obtain these error models, the tool frame should be chosen as reference frame at first, and then each position-error-related segment in the error models using pose measurement should be selected. And during kinematic parameter identification, all the errors in joint twists are identifiable, and the initial transformation errors and the joint zero-position errors can be identified conditionally. Namely, the initial transformation errors are identifiable if they do not contain orientation errors. And the joint zero-position errors are identifiable when a robot only consists of prismatic joints and the coordinates of its joint twists are linearly independent. The effectiveness of this calibration method has been validated by simulations and experiments. The results show that: (1) the identification algorithms are robust and practical. (2) The method of position measurement is superior to that of pose measurement.
Year
DOI
Venue
2015
10.1017/S026357471400071X
ROBOTICA
Keywords
Field
DocType
Calibration and identification,Product of exponentials formula,Error model,Kinematic calibration
Reference frame,Linear independence,Mathematical optimization,Exponential function,Kinematics,Control theory,Kinematic calibration,Algorithm,Robot,Mathematics,Calibration
Journal
Volume
Issue
ISSN
33
6
0263-5747
Citations 
PageRank 
References 
5
0.46
10
Authors
9
Name
Order
Citations
PageRank
Ruibo He150.46
xiwen li251.81
Tielin Shi39017.20
Bo Wu4112.67
Yingjun Zhao550.46
Fenglin Han650.46
Shunian Yang750.46
Shuhong Huang880.89
Shuzi Yang9625.81