Real Time Measurement and Analysis for Three-Dimensional Displacement of EAST Cold Magnets

摘要

The location of superconducting tokamak magnets decides the position and shape of plasma, it is significant to acquire the real-time location of tokamak magnets to stably operate the tokamak. Using an improved monocular laser triangle measuring method, it can effectively reduce the distractions, the new measurement system has been installed inside the experimental hall ofEAST in 2010 and was tested in the entire process of EAST experiment in 2011. After the annual experiment, we got roughly trend of the torodial field coil displacement. The measurement system was upgraded and reformed in 2012, the measurement system stably and reliably obtained large amount of experimental data, the realtime three-dimensional magnet displacement from room temperature to around 4 K and combined with excitation situation during the whole experiment have been obtained.