Study on precision spatial measurement network of EAST

Chen Liu; Yongqi Gu; Yuanyang Zheng; Shijun Qin; Jun Wang

doi:10.1117/12.2181108

6 March 2015 Study on precision spatial measurement network of EAST

Chen Liu, Yongqi Gu, Yuanyang Zheng, Shijun Qin, Jun Wang

Proceedings Volume 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation; 94462C (2015) https://doi.org/10.1117/12.2181108
Event: International Symposium on Precision Engineering Measurement and Instrumentation, 2014, Changsha/Zhangjiajie, China

Abstract

A precision spatial measurement network for EAST was studied and established base on the EAST configuration and Laser Tracker system. 34 fiducials in outside network and 64 fiducials in inside network were united in one cylindrical coordinate by a laser tracker system. Unified Spatial Metrology Network (USMN) analysis showed that the single point average uncertainty of this measurement network was about 0.2mm, which can meet the measurement accuracy requirements of EAST. A combination measurement method with a laser tracker system and measurement arm was used for the assembly process of EAST device and some researches of environmental temperature influence have been done to improve the measurement process.

Citation Download Citation

Chen Liu, Yongqi Gu, Yuanyang Zheng, Shijun Qin, and Jun Wang "Study on precision spatial measurement network of EAST", Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 94462C (6 March 2015); https://doi.org/10.1117/12.2181108

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