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  • Received: Oct. 23, 2006

    Accepted: --

    Posted: Jun. 27, 2007

    Published Online: Jun. 27, 2007

    The Author Email: Wanli Liu (


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    Wanli Liu, Jianfei Ouyang, Xinghua Qu, Yonggang Yan. Misalignment error calibration of faro retro probe for laser tracker system[J]. Chinese Optics Letters, 2007, 5(5): 281

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Chinese Optics Letters, Vol. 5, Issue 5, 281 (2007)

Misalignment error calibration of faro retro probe for laser tracker system

Wanli Liu1,*, Jianfei Ouyang1, Xinghua Qu2, and Yonggang Yan2

Author Affiliations

  • 1State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072
  • 2Precision Engineering Institute, He'nan Polytechnic University, Jiaozuo 454003


A technique to calibrate faro retro probe using laser tracker system (LTS) is presented. The deep-access retro probe enables LTS to perform three-dimensional (3D) measurements of surface hidden features. It has been shown that misalignment errors are the key contributor to measuring errors of retro probe. A device for measuring misalignment errors of retro probe is invented. Theoretical analysis and experiment show that using this technique to calibrate retro probe, the misalignment errors of retro probe can be eliminated effectively and quickly.


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