Abstract The motional Stark estark effect (MSE) diagnostic system developed to measure the plasma current density distribution in the Korea Superconducting Tokamak Advanced Research performs data analysis by applying Fourier transform algorithm using the Interactive Data Language (IDL) software after measurement and digital archiving. However, in order to realize advanced plasma control aiming at the development of high performance tokamak operations, there has been a demand for the MSE diagnostic system capable of real-time pitch-angle measurement associated with a plasma control system (PCS). For real-time, multi-channel, and high-speed MSE data processing with high precision, an analog lock-in technique has been proposed and its feasibility has been demonstrated through the table-top tests using the photoelastic-modulator-base polarimetry. The prototype multi-channel analog lock-in system is ready for the plasma commissioning and the integration with the PCS.

中文翻译：

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用于实时运动斯塔克效应测量的多通道模拟锁定系统

摘要 韩国超导托卡马克高级研究中心为测量等离子体电流密度分布而开发的运动斯塔克 estark 效应 (MSE) 诊断系统在测量和数字存档后，使用交互式数据语言 (IDL) 软件应用傅立叶变换算法进行数据分析。然而，为了实现旨在开发高性能托卡马克操作的先进等离子体控制，需要能够与等离子体控制系统（PCS）相关联的实时俯仰角测量的 MSE 诊断系统。对于实时、多通道和高精度的高速 MSE 数据处理，已经提出了一种模拟锁定技术，并通过使用基于光弹性调制器的偏振测量的桌面测试证明了其可行性。