Parameter Calibration Method Based on Screw Theory for Articulated Coordinate Measuring Arm

Abstract:

Article Preview

To improve the measurement accuracy of the articulated coordinate measuring arm (ACMA), the measurement system’s parameters must be calibrated. The mathematical model and the disturbance of the kinematic parameters’ error are critical to the calibration precision. In this paper, product-of-exponential(POE) model is adopted to establish the kinematic model of the ACMA, and an error correction model which utilizes single-point versus multi-pose and the distance between every two points is used to take accuracy and repeatability into account. Then, genetic algorithm is utilized to optimize the error correction model in order to identify kinematic parameters. Experimental results reveal that the proposed calibration method is feasible.

Info:

Periodical:

Advanced Materials Research (Volumes 189-193)

Edited by:

Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang

Pages:

4049-4052

DOI:

10.4028/www.scientific.net/AMR.189-193.4049

Citation:

K. Huang et al., "Parameter Calibration Method Based on Screw Theory for Articulated Coordinate Measuring Arm", Advanced Materials Research, Vols. 189-193, pp. 4049-4052, 2011

Online since:

February 2011

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.