Development of data plotting and analysis utility for superconducting magnets of SST-1

The magnet system of SST-1 tokamak at IPR consists of sixteen toroidal field and nine poloidal field Superconducting (SC) coils, a pair of resistive vertical field (VF) coils, an air core Ohmic transformer with compensation coils for its various magnetic field requirements. SC coils are equipped with temperature, voltage, pressure, flow, displacement, strain and Hall sensors for healthy monitoring during cool down, plasma experiment and warm up. An in house signal conditioning electronics system has been developed to cater the need of various cryogenic compatible sensors of TF and PF coils. VME DAQ system interfaced with JAVA based server client application has been developed for acquisition and archival of sensor's data during experiments in SST-1. Post analysis of data of sensors is our prime requirement, which are necessary for magnet cool down, charging-discharging and magnetic field performance as well as health of magnets during quench if any. The java based offline data analysis tool has been developed to read data from single and multiple H2db files which are created with running acquisition along with CSV files. The offline data analysis tool can conjugate up to 20 continuously created H2db files and plot continuous trend of sensor's data. The data analysis tool can also plot in different nodes which a user can define and save for future applications. This poster gives overview of the offline data analysis tool, its implemented features, data conjugation and data plotting performances of SST-1 SC coil sensors. It also illustrates specific data plotting cases of SC coils in recent SST-1 plasma campaigns. (author)