The Novel Calibration Method for 3-DOF Measurement System

Abstract:

In this paper, a novel calibration method is developed to improve the measurement accuracy of 3-DOF measurement system. The squareness error between three sensors and misalignment error with respect to reference coordinate of machine tool are calibration parameters. To estimate these parameters, reference ball is used and moved in the measuring ranges of 3-DOF measurement system. The relation between calibration parameters, position of reference ball, measured data of sensors are defined using geometric constraint and estimated using least square method. Finally, simulation is done to check the feasibility of developed calibration method. The result of simulation revealed the validation of developed method.

• Periodical: Applied Mechanics and Materials (Volume 120)
• Pages: 440-443
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.120.440
• Online since: October 2011
• Authors: Kwang Il Lee, Jin Seok Jang, Hyun Woo Lee, Suk Jin Kim, Sang Ryong Lee, Seung Han Yang
• Keywords: 3-DOF Measurement System, Calibration Method, Least-Square Method (LSM), Misalignment Error, Squareness Error

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