Abstract
Based on the non-diffracting beam and the phase grating interferometer, a precise measurement method of azimuth angle for TBM has been developed in this paper. A high positioning precision is got on the image of the non-diffracting beam and its axis stability and a circular phase grating interferometer is used for angle measurement, so this measurement system can achieve that the measurement uncertainty of horizontal azimuth angle in absolute coordinates system is less than 0.507” and the measurement error of yaw angle, the angle between the non-diffracting beam and the axis of TBM, is less than 0.05mradial, when the distance between two conjoint work station positions is 200m. Therefore, this measurement system can be used as a guidance system of TBM in the shield tunneling and it can improve the orientation precision in the shield tunneling.
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© 2009 Springer-Verlag Berlin Heidelberg
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Zhang, X., Liu, S., Zhao, B. (2009). A Precise Measurement Method of Azimuth Angle for TBM. In: Xie, M., Xiong, Y., Xiong, C., Liu, H., Hu, Z. (eds) Intelligent Robotics and Applications. ICIRA 2009. Lecture Notes in Computer Science(), vol 5928. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-10817-4_42
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DOI: https://doi.org/10.1007/978-3-642-10817-4_42
Publisher Name: Springer, Berlin, Heidelberg
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