The Design of Data Acquisition System for EAST Technical Diagnostic System
Ying Chen, Shi Li, Huazhong Wang, Yong Wang, and Bingjia Xiao

TL;DR
This paper details the design and implementation of a data acquisition system for the EAST superconducting tokamak's diagnostic system, enabling real-time monitoring, safety interlocks, and long-term data storage for critical temperature signals.
Contribution
It introduces a comprehensive data acquisition architecture supporting multiple data types, integrating PXI technology and VISA standards, and ensuring safety and data management in EAST operations.
Findings
System successfully used in 2018 EAST campaign
Supports continuous and pulse data acquisition
Ensures safety interlock activation based on temperature thresholds
Abstract
EAST (Experimental Advanced Superconducting Tokamak) Technical Diagnostic System (TDS) is used to monitor the outlet temperature of all superconducting coils, in case of temperature anomaly, it will trigger safety interlock system to meet EAST device safety. The data acquisition system of TDS is in charge of continuous data acquisition of the nitrogen and helium temperature signals, TDS security alarm and long-term data storage. It supports continuous data acquisition and pulse data acquisition. The data acquisition of the nitrogen temperature signals is based on the PXI technology while obtaining the helium temperature signals from Lake Shore model 224 temperature monitors with VISA standard. After data conversion, all the data will be stored in MySQL and MDSPlus for long-term storage. It should output TDS fault signal and status signal to trigger the safety interlock system to take…
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