| AN Qi-chang,ZHANG Jing-xu,YANG Fei,SUN Jing-wei.TMT tertiary mirror axis calibration with laser tracker[J].Optoelectronics Letters,2015,11(2):84-87 |
| TMT tertiary mirror axis calibration with laser tracker |
| Author Name | Affiliation | | AN Qi-chang | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China | | ZHANG Jing-xu | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China | | YANG Fei | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China | | SUN Jing-wei | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China |
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| Abstract: |
| To calibrate the tracing performance of the thirty meter telescope (TMT) tertiary mirror, for the special requirement of the TMT, the laser tracker is used to verify the motion. Firstly, the deviation is divided into two parts, namely, the repeatable error and the unrepeatable part. Then, based on the laser tracker, the mearturement and evalutation methods of the rigid body motion for the mirror are established, and the Monte Carol method is used to determine the accuracy of the mothod. Lastly, the mothod is applied to the turn table of a classical telescope and the residual error is about 4 arc second. The work of this paper will guide the next desgin and construction work of the thirty meter telescope tertiary mirror. |
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| This work has been supported by the National Natural Science Foundation of China (No.11403022) |
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