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. 2013 May 31;13(6):7224–7249. doi: 10.3390/s130607224

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© 2013 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 10. — Residual plots of systematic errors in the vertical angle observations (α) from plane-based self-calibration for hybrid-type scanners: C₀ is the vertical circle index error, C₁ is the scale factor error, C₂ + C₃ are the vertical circle eccentricity, C₄ + C₅ are the non-orthogonality of vertical encoder and trunnion axis, C₆ is the vertical eccentricity of collimation axis, and C₇ + C₈ is the vertical axis wobble.